import { Hono } from "hono";
import { cors } from "hono/cors";
import {
  checklistFor,
  refreshPipeline,
  isProjectStatus,
  projectById,
  projectMustBe,
  PROJECT_STATUS_CATALOG,
  projectChecklistFor,
  companyChecklistFor,
  imssFlagsFor,
  pingCoreDb,
  tenantTimezone,
  getCoreDb,
  type Db,
} from "./db.ts";
import { callCoreFn } from "./rpc.ts";
import { normalizeDocumentGetPayload } from "./document_rpc.ts";
import {
  respondRpc,
  respondApiError,
  onAppError,
  routeLabel,
  type RpcEnvelope,
} from "./http_errors.ts";
import { config } from "./config.ts";
import {
  clearSession,
  createSessionCookie,
  login,
  changePassword,
  getFreshAppUser,
  requireAuth,
  requirePlatformAdmin,
  tenantScope,
  type AuthUser,
} from "./auth.ts";
import { requireCoreAuth, withCoreScope } from "./scope.ts";
import { requirePermission, requireAnyPermission } from "./permissions.ts";
import {
  denyUnlessProjectScope,
  denyUnlessProjectDocCreate,
  denyUnlessProjectDocView,
  filterProjectDocumentsForUser,
  filterProjectListEnvelope,
} from "./scope_enforcement.ts";
import { getPlatformDb, pingPlatformDb } from "./platform_db.ts";
import { createTenant, getTenantDetail, issueTenantAdminAccess, listTenants, updateTenant } from "./saas.ts";
import { smtpConfigured, testSmtp } from "./mail.ts";
import { saveSmtpSettings, smtpPublicView } from "./smtp.ts";
import { decryptBytes } from "./docs_crypto.ts";
import { importExcel, storeDocument, storeProjectDocument, storeCompanyDocument, buildImportTemplate } from "./excel.ts";
import {
  normalizeWorker,
  validateCurp,
  validateNss,
  validateRfc,
  validateWorkerFields,
  formatNss,
  normUpper,
  titleCase,
  sentenceCase,
  type WorkerInput,
} from "./mx.ts";
import { generateBadgePdf, saveJobPdf, loadCurrentPhoto, badgeQrPng } from "./pdf.ts";
import { registerPayrollRoutes } from "./payroll_http.ts";
import { registerExpenseRoutes } from "./expenses_http.ts";
import { registerExpenseCatalogRoutes } from "./expense_catalogs_http.ts";
import { registerWarehouseRoutes } from "./warehouse_http.ts";
import { registerCostControlRoutes } from "./cost_control_http.ts";
import { registerWorkProgramRoutes } from "./work_program_http.ts";
import { registerIamRoutes } from "./iam_http.ts";
import { createSubcompany, listCompanies, resolveCompany, updateCompany, companyById } from "./companies.ts";
import {
  buildBudgetTemplate,
  budgetReadErrorMessage,
  excelFileTypeError,
  exportBudgetWorkbook,
  previewBudgetExcel,
  importBudgetExcel,
  listBudget,
} from "./budget.ts";
import { badgeJobPdfKey, companyDocKey, getObject, pingStorage, projectDocKey, workerDocKey } from "./storage.ts";
import { cacheCore, cacheKeyCore } from "./cache.ts";
import { pingRedis } from "./redis.ts";

const app = new Hono<{ Variables: { user: AuthUser; db: Db } }>();

app.onError(onAppError);

type StorageDoc = {
  storage_name: string;
  iv: string;
  original_name: string;
  mime?: string;
  type_code?: string;
  type?: string;
};

async function rpcDocumentForDownload(
  db: Db,
  fn: string,
  payload: Record<string, unknown>,
  route: string,
): Promise<{ doc?: StorageDoc; envelope: RpcEnvelope }> {
  const envelope = await callCoreFn<{ document: StorageDoc }>(
    db,
    fn,
    normalizeDocumentGetPayload(payload),
    { route },
  );
  if (!envelope.ok) return { envelope };
  const doc = envelope.data?.document;
  if (!doc?.storage_name) {
    return {
      envelope: {
        ok: false,
        code: "NOT_FOUND",
        layer: "db",
        message: "Documento no encontrado",
        context: { fn, ...payload },
        data: null,
        errors: null,
      },
    };
  }
  return { doc, envelope };
}

async function readExcelUpload(
  c: { req: { formData: () => Promise<FormData> } },
): Promise<{ file: File; bytes: Uint8Array } | { error: string }> {
  const form = await c.req.formData();
  const file = form.get("file");
  if (!(file instanceof File)) return { error: "Seleccione un archivo Excel (.xlsx o .xls)." };
  const typeError = excelFileTypeError(file.name);
  if (typeError) return { error: typeError };
  return { file, bytes: new Uint8Array(await file.arrayBuffer()) };
}

async function scopedCompany(
  db: Db,
  id: number,
  tid: number | null,
) {
  const company = await companyById(db, id);
  if (!company) return undefined;
  if (tid != null && company.tenant_id != null && company.tenant_id !== tid) return undefined;
  return company;
}

function corsOrigins(): string[] {
  const defaults = [
    "http://localhost:3000",
    "http://127.0.0.1:3000",
    "http://localhost:3001",
    "http://127.0.0.1:3001",
  ];
  const extra = (Deno.env.get("CORS_ORIGINS") ?? "")
    .split(",")
    .map((s) => s.trim())
    .filter(Boolean);
  return [...new Set([...defaults, ...extra])];
}

app.use(
  "/v1/*",
  cors({
    origin: corsOrigins(),
    credentials: true,
    allowHeaders: ["Content-Type", "X-API-Key", "X-Tenant-Id"],
  }),
);

// Fail-fast real (Fase 7): antes con SQLite la app "siempre arrancaba"; con
// Postgres/Redis, /v1/health de verdad toca las tres conexiones Postgres y
// las dos de Redis, no solo responde estático.
app.get("/v1/health", async (c) => {
  const [core, platform, redis, storage] = await Promise.all([
    pingCoreDb().then(() => true).catch(() => false),
    pingPlatformDb().then(() => true).catch(() => false),
    pingRedis(),
    pingStorage(),
  ]);
  const storageOk = storage.ok && (storage.backend === "local" || storage.configured);
  const ok = core && platform && redis.iam && redis.core && storageOk;
  return c.json({ ok, core, platform, redis, storage }, ok ? 200 : 503);
});

app.post("/v1/auth/login", async (c) => {
  const body = await c.req.json<{ username?: string; password?: string }>();
  try {
    const user = await login(body.username ?? "", body.password ?? "");
    if (!user) return c.json({ error: "Usuario o contraseña incorrectos" }, 401);
    await createSessionCookie(c, user.id, user.realm, user.tenant_id);
    return c.json({ user });
  } catch (e: unknown) {
    if (e instanceof Error && (e as { code?: string }).code === "TENANT_BLOCKED") {
      return c.json({ error: e.message }, 403);
    }
    throw e;
  }
});

app.post("/v1/auth/logout", async (c) => {
  await clearSession(c);
  return c.json({ ok: true });
});

app.get("/v1/auth/me", requireAuth, (c) => c.json({ user: c.get("user") }));

app.post("/v1/auth/change-password", requireAuth, async (c) => {
  const user = c.get("user");
  if (user.realm !== "app") return c.json({ error: "No aplica" }, 400);
  const body = await c.req.json<{ current_password?: string; new_password?: string }>();
  const result = await changePassword(user.id, user.tenant_id, body.current_password ?? "", body.new_password ?? "");
  if (result.error) return c.json({ error: result.error }, 400);
  const fresh = await getFreshAppUser(user.id, user.tenant_id);
  return c.json({ ok: true, user: fresh });
});

app.get("/v1/saas/tenants", requirePlatformAdmin, async (c) => {
  const pdb = await getPlatformDb();
  return c.json({ tenants: await listTenants(pdb), smtp_configured: await smtpConfigured(pdb) });
});

app.get("/v1/saas/tenants/:id", requirePlatformAdmin, async (c) => {
  const id = Number(c.req.param("id"));
  const pdb = await getPlatformDb();
  const core = await getCoreDb();
  const detail = await getTenantDetail(pdb, core, id);
  if (!detail) return c.json({ error: "Empresa no encontrada" }, 404);
  return c.json({ tenant: detail, smtp_configured: await smtpConfigured(pdb) });
});

app.get("/v1/saas/smtp", requirePlatformAdmin, async (c) => {
  const pdb = await getPlatformDb();
  return c.json({ smtp: await smtpPublicView(pdb) });
});

app.put("/v1/saas/smtp", requirePlatformAdmin, async (c) => {
  const body = await c.req.json();
  const pdb = await getPlatformDb();
  const result = await saveSmtpSettings(pdb, {
    ...body,
    keep_password: body.password === undefined || body.password === "",
  });
  if (result.error) return c.json({ error: result.error }, 400);
  return c.json({ smtp: result.settings });
});

app.post("/v1/saas/smtp/test", requirePlatformAdmin, async (c) => {
  const body = await c.req.json<{ to?: string }>().catch(() => ({} as { to?: string }));
  const pdb = await getPlatformDb();
  if (!await smtpConfigured(pdb)) {
    return c.json({ error: "Guarde y habilite SMTP antes de probar" }, 400);
  }
  const result = await testSmtp(pdb, body.to ?? "");
  if (!result.sent) return c.json({ error: result.error || "No se pudo enviar" }, 400);
  return c.json({ ok: true, sent: true, to: body.to, message_id: result.message_id });
});

app.post("/v1/saas/tenants", requirePlatformAdmin, async (c) => {
  const body = await c.req.json();
  const pdb = await getPlatformDb();
  const core = await getCoreDb();
  const result = await createTenant(pdb, core, body);
  if (result.error || !result.tenant) return c.json({ error: result.error }, 400);
  return c.json({
    tenant: result.tenant,
    admin: result.admin,
    email: result.email,
  }, 201);
});

app.patch("/v1/saas/tenants/:id", requirePlatformAdmin, async (c) => {
  const id = Number(c.req.param("id"));
  const body = await c.req.json();
  const pdb = await getPlatformDb();
  const core = await getCoreDb();
  const result = await updateTenant(pdb, core, id, body);
  if (result.error) return c.json({ error: result.error }, 400);
  const detail = await getTenantDetail(pdb, core, id);
  return c.json({ tenant: detail });
});

/** Regenera contraseña temporal del admin y opcionalmente la envía por correo. */
app.post("/v1/saas/tenants/:id/send-access", requirePlatformAdmin, async (c) => {
  const id = Number(c.req.param("id"));
  const body = await c.req.json<{ user_id?: number; send_email?: boolean }>().catch(() =>
    ({} as { user_id?: number; send_email?: boolean })
  );
  const pdb = await getPlatformDb();
  const core = await getCoreDb();
  const result = await issueTenantAdminAccess(pdb, core, id, {
    userId: body.user_id,
    send_email: body.send_email !== false,
  });
  if (result.error) return c.json({ error: result.error }, 400);
  return c.json({
    admin: result.admin,
    email: result.email,
    smtp_configured: await smtpConfigured(pdb),
  });
});

app.get("/v1/catalogs", ...requireCoreAuth, requirePermission("reports.view"), async (c) => {
  const db = c.get("db");
  const user = c.get("user");
  const tid = tenantScope(user);
  const route = routeLabel(c);
  const payload = await cacheCore(cacheKeyCore(tid, "catalogs"), 30, async () => {
    const env = await callCoreFn<Record<string, unknown>>(db, "core.fn_catalogs", {}, { route });
    if (!env.ok) throw new Error(env.message);
    return {
      ...env.data,
      project_statuses: PROJECT_STATUS_CATALOG,
      companies: await listCompanies(db, tid),
    };
  });
  return c.json(payload);
});

// Configuración del tenant (Fase 4d): zona horaria usada por nómina y
// vigencia de documentos -- reemplaza el PAYROLL_TZ hardcodeado.
app.get("/v1/configuracion", ...requireCoreAuth, requirePermission("settings.view"), async (c) => {
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  const timezone = await tenantTimezone(db, tid);
  return c.json({ timezone });
});

app.put("/v1/configuracion", ...requireCoreAuth, requirePermission("settings.update"), async (c) => {
  const user = c.get("user");
  const db = c.get("db");
  const tid = tenantScope(user);
  if (tid == null) {
    return respondApiError(c, "VALIDATION", "Cuenta sin tenant asociada para guardar configuración", {
      route: routeLabel(c),
    });
  }
  const body = await c.req.json<{ timezone?: string }>();
  const tz = (body.timezone ?? "").trim();
  const valid = new Set(Intl.supportedValuesOf("timeZone"));
  if (!tz || !valid.has(tz)) {
    return respondApiError(c, "VALIDATION", `Zona horaria inválida en ${routeLabel(c)}: ${tz || "(vacío)"}`, {
      route: routeLabel(c),
      timezone: tz || null,
    });
  }
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_tenant_settings_upsert",
    { tenant_id: tid, timezone: tz },
    { route: routeLabel(c) },
  ));
});

app.get("/v1/companies", ...requireCoreAuth, requirePermission("companies.view"), async (c) => {
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_company_list",
    { tenant_id: tid },
    { route: routeLabel(c) },
  ));
});

app.post("/v1/companies", ...requireCoreAuth, requirePermission("companies.create"), async (c) => {
  const body = await c.req.json();
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  const result = await createSubcompany(db, body, tid);
  if (result.error || !result.company) {
    const code = result.status === 404 ? "NOT_FOUND" : "VALIDATION";
    return respondApiError(c, code, result.error ?? "No se pudo crear la empresa", { route: routeLabel(c) });
  }
  return respondRpc(c, {
    ok: true,
    code: "CREATED",
    layer: "db",
    message: `Empresa ${result.company.code} creada`,
    data: { company: result.company },
  });
});

app.patch("/v1/companies/:id", ...requireCoreAuth, requirePermission("companies.update"), async (c) => {
  const id = Number(c.req.param("id"));
  const body = await c.req.json();
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  const result = await updateCompany(db, id, body, tid);
  if (result.error) {
    const code = result.status === 404 ? "NOT_FOUND" : "VALIDATION";
    return respondApiError(c, code, result.error, { route: routeLabel(c), company_id: id });
  }
  return respondRpc(c, {
    ok: true,
    code: "OK",
    layer: "db",
    message: `Empresa id=${id} actualizada`,
    data: { company: result.company },
  });
});

app.get("/v1/companies/:id", ...requireCoreAuth, requirePermission("companies.view"), async (c) => {
  const id = Number(c.req.param("id"));
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  const route = routeLabel(c);
  const companyEnv = await callCoreFn<{ company: Record<string, unknown> }>(db, "core.fn_company_get", { id }, { route });
  if (!companyEnv.ok) return respondRpc(c, companyEnv);
  const company = companyEnv.data?.company;
  if (!company) {
    return respondApiError(c, "NOT_FOUND", `Empresa id=${id} no encontrada en ${route}`, { route, company_id: id });
  }
  if (tid != null && company.tenant_id != null && company.tenant_id !== tid) {
    return respondApiError(c, "NOT_FOUND", `Empresa id=${id} no encontrada en ${route}`, { route, company_id: id });
  }
  const docsEnv = await callCoreFn<{ documents: unknown[] }>(
    db,
    "core.fn_company_document_list",
    { company_id: id },
    { route },
  );
  if (!docsEnv.ok) return respondRpc(c, docsEnv);
  return respondRpc(c, {
    ok: true,
    code: "OK",
    layer: "db",
    message: `Empresa ${company.code} cargada`,
    data: {
      company,
      documents: docsEnv.data?.documents ?? [],
      checklist: await companyChecklistFor(db, id),
    },
  });
});

app.post("/v1/companies/:id/documents", ...requireCoreAuth, requirePermission("documents.create"), async (c) => {
  const id = Number(c.req.param("id"));
  const form = await c.req.formData();
  const type = String(form.get("type") || "");
  const file = form.get("file");
  if (!(file instanceof File) || !type) return c.json({ error: "type y file requeridos" }, 400);
  const db = c.get("db");
  if (!await scopedCompany(db, id, tenantScope(c.get("user")))) return c.json({ error: "Empresa no encontrada" }, 404);
  const bytes = new Uint8Array(await file.arrayBuffer());
  try {
    await storeCompanyDocument(db, id, type, file.name, file.type || "application/octet-stream", bytes, c.get("user").id);
  } catch (error) {
    return c.json({ error: error instanceof Error ? error.message : "No se pudo guardar el documento" }, 400);
  }
  return c.json({ ok: true, checklist: await companyChecklistFor(db, id) });
});

app.get("/v1/companies/:id/documents/:docId", ...requireCoreAuth, requirePermission("documents.view"), async (c) => {
  const companyId = Number(c.req.param("id"));
  const docId = Number(c.req.param("docId"));
  const db = c.get("db");
  const route = routeLabel(c);
  if (!await scopedCompany(db, companyId, tenantScope(c.get("user")))) {
    return respondApiError(c, "NOT_FOUND", `Empresa id=${companyId} no encontrada en ${route}`, { route, company_id: companyId });
  }
  const { doc, envelope } = await rpcDocumentForDownload(
    db,
    "core.fn_company_document_get",
    { company_id: companyId, doc_id: docId },
    route,
  );
  if (!doc) return respondRpc(c, envelope);
  const enc = await getObject(companyDocKey(companyId, doc.storage_name));
  const plain = await decryptBytes(doc.iv, enc);
  c.header("Content-Type", "application/octet-stream");
  c.header("X-Content-Type-Options", "nosniff");
  c.header("Content-Disposition", `attachment; filename="${encodeURIComponent(doc.original_name)}"`);
  return c.body(plain.buffer as ArrayBuffer);
});

app.get("/v1/projects", ...requireCoreAuth, requirePermission("projects.view"), async (c) => {
  const db = c.get("db");
  const status = (c.req.query("status") ?? "").trim();
  const allowed = status ? status.split(",").map((s) => s.trim()).filter(isProjectStatus) : [];
  if (status && !allowed.length) {
    return respondApiError(c, "VALIDATION", `Ningún estado de proyecto válido en ${routeLabel(c)}: ${status}`, {
      route: routeLabel(c),
      status,
    });
  }
  const env = await callCoreFn(
    db,
    "core.fn_project_list",
    { status: allowed.length ? allowed.join(",") : undefined },
    { route: routeLabel(c) },
  );
  return respondRpc(c, await filterProjectListEnvelope(c, env as Parameters<typeof filterProjectListEnvelope>[1]));
});

type ProjectInput = {
  name?: string;
  address?: string;
  theme_id?: string;
  status?: string;
  company_id?: number | null;
  contract_amount?: number | null;
  start_date?: string | null;
  end_date?: string | null;
  resident_name?: string | null;
  siroc?: string | null;
  payroll_tax_pct?: number | null;
};

function isoDate(value: unknown): string | null {
  const raw = String(value ?? "").trim();
  if (!raw) return null;
  const match = raw.match(/^(\d{4}-\d{2}-\d{2})/);
  return match ? match[1] : null;
}

function numOrNull(value: unknown): number | null {
  if (value === undefined || value === null || value === "") return null;
  const n = Number(value);
  return Number.isNaN(n) ? null : n;
}

function projectFields(body: ProjectInput, cur?: Record<string, unknown>) {
  const start = isoDate(body.start_date !== undefined ? body.start_date : cur?.start_date);
  const end = isoDate(body.end_date !== undefined ? body.end_date : cur?.end_date);
  const payroll = numOrNull(body.payroll_tax_pct !== undefined ? body.payroll_tax_pct : cur?.payroll_tax_pct);
  const amount = numOrNull(body.contract_amount !== undefined ? body.contract_amount : cur?.contract_amount);
  const companyRaw = body.company_id !== undefined ? body.company_id : cur?.company_id;
  return {
    name: titleCase(String(body.name ?? cur?.name ?? "")),
    address: sentenceCase(String(body.address ?? cur?.address ?? "")),
    theme_id: String(body.theme_id ?? cur?.theme_id ?? "arctec-dos-logos-fold"),
    company_id: companyRaw ? Number(companyRaw) : null,
    contract_amount: amount,
    start_date: start,
    end_date: end,
    resident_name: titleCase(String(body.resident_name ?? cur?.resident_name ?? "")),
    siroc: normUpper(String(body.siroc ?? cur?.siroc ?? "")),
    payroll_tax_pct: payroll ?? 4,
  };
}

app.post("/v1/projects", ...requireCoreAuth, requirePermission("projects.create"), async (c) => {
  const body = await c.req.json<ProjectInput>();
  if (!body.name?.trim()) {
    return respondApiError(c, "VALIDATION", `Nombre de proyecto obligatorio en ${routeLabel(c)}`, {
      route: routeLabel(c),
    });
  }
  const status = body.status && isProjectStatus(body.status) ? body.status : "activo";
  const db = c.get("db");
  const fields = projectFields(body);
  if (!fields.company_id) {
    return respondApiError(c, "VALIDATION", `Seleccione la empresa del proyecto en ${routeLabel(c)}`, {
      route: routeLabel(c),
    });
  }
  if (!await resolveCompany(db, { company_id: fields.company_id })) {
    return respondApiError(c, "VALIDATION", `Empresa id=${fields.company_id} no encontrada en ${routeLabel(c)}`, {
      route: routeLabel(c),
      company_id: fields.company_id,
    });
  }
  if (fields.start_date && fields.end_date && fields.end_date < fields.start_date) {
    return respondApiError(c, "VALIDATION", `La fecha de término no puede ser anterior al inicio en ${routeLabel(c)}`, {
      route: routeLabel(c),
    });
  }
  const tid = tenantScope(c.get("user"));
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_project_create",
    {
      tenant_id: tid,
      name: fields.name,
      address: fields.address,
      theme_id: fields.theme_id,
      status,
      company_id: fields.company_id,
      contract_amount: fields.contract_amount,
      start_date: fields.start_date,
      end_date: fields.end_date,
      resident_name: fields.resident_name,
      siroc: fields.siroc,
      payroll_tax_pct: fields.payroll_tax_pct,
    },
    { route: routeLabel(c) },
  ));
});

app.patch("/v1/projects/:id", ...requireCoreAuth, requirePermission("projects.update"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const body = await c.req.json<ProjectInput>();
  const db = c.get("db");
  const route = routeLabel(c);
  const curEnv = await callCoreFn<{ project: Record<string, unknown> }>(db, "core.fn_project_get", { id }, { route });
  if (!curEnv.ok) return respondRpc(c, curEnv);
  const cur = curEnv.data?.project;
  if (!cur) {
    return respondApiError(c, "NOT_FOUND", `Proyecto id=${id} no encontrado en ${route}`, { route, project_id: id });
  }
  const status = body.status && isProjectStatus(body.status) ? body.status : String(cur.status || "activo");
  const fields = projectFields(body, cur);
  if (!fields.company_id) {
    return respondApiError(c, "VALIDATION", `Seleccione la empresa del proyecto en ${route}`, { route, project_id: id });
  }
  if (!await resolveCompany(db, { company_id: fields.company_id })) {
    return respondApiError(c, "VALIDATION", `Empresa id=${fields.company_id} no encontrada en ${route}`, {
      route,
      project_id: id,
      company_id: fields.company_id,
    });
  }
  if (fields.start_date && fields.end_date && fields.end_date < fields.start_date) {
    return respondApiError(c, "VALIDATION", `La fecha de término no puede ser anterior al inicio en ${route}`, {
      route,
      project_id: id,
    });
  }
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_project_update",
    {
      id,
      name: fields.name,
      address: fields.address,
      theme_id: fields.theme_id,
      status,
      company_id: fields.company_id,
      contract_amount: fields.contract_amount,
      start_date: fields.start_date,
      end_date: fields.end_date,
      resident_name: fields.resident_name,
      siroc: fields.siroc,
      payroll_tax_pct: fields.payroll_tax_pct,
    },
    { route },
  ));
});

app.get("/v1/projects/:id", ...requireCoreAuth, requirePermission("projects.view"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const db = c.get("db");
  const route = routeLabel(c);
  const projectEnv = await callCoreFn<{ project: Record<string, unknown> }>(db, "core.fn_project_get", { id }, { route });
  if (!projectEnv.ok) return respondRpc(c, projectEnv);
  const project = projectEnv.data?.project;
  if (!project) {
    return respondApiError(c, "NOT_FOUND", `Proyecto id=${id} no encontrado en ${route}`, { route, project_id: id });
  }
  const docsEnv = await callCoreFn<{ documents: unknown[] }>(
    db,
    "core.fn_project_document_list",
    { project_id: id },
    { route },
  );
  if (!docsEnv.ok) return respondRpc(c, docsEnv);
  const user = c.get("user") as AuthUser;
  const documents = await filterProjectDocumentsForUser(
    user,
    db,
    (docsEnv.data?.documents ?? []) as Array<{ type_code?: string; type?: string }>,
  );
  return respondRpc(c, {
    ok: true,
    code: "OK",
    layer: "db",
    message: `Proyecto ${project.code} cargado`,
    data: {
      project,
      documents,
      checklist: await projectChecklistFor(db, id),
    },
  });
});

app.post("/v1/projects/:id/documents", ...requireCoreAuth, requireAnyPermission("project_docs.tecnico.create", "project_docs.contrato.create", "project_docs.permisos.create", "project_docs.ambiental.create", "project_docs.imss.create", "project_docs.sst.create", "project_docs.otro.create"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const form = await c.req.formData();
  const type = String(form.get("type") || "");
  const file = form.get("file");
  if (!(file instanceof File) || !type) return c.json({ error: "type y file requeridos" }, 400);
  const db = c.get("db");
  if (!await projectById(db, id)) return c.json({ error: "Proyecto no encontrado" }, 404);
  if (!await denyUnlessProjectDocCreate(c, db, type)) return;
  const bytes = new Uint8Array(await file.arrayBuffer());
  try {
    await storeProjectDocument(db, id, type, file.name, file.type || "application/octet-stream", bytes, c.get("user").id);
  } catch (error) {
    return c.json({ error: error instanceof Error ? error.message : "No se pudo guardar el documento" }, 400);
  }
  return c.json({ ok: true, checklist: await projectChecklistFor(db, id) });
});

app.get("/v1/projects/:id/documents/:docId", ...requireCoreAuth, requirePermission("projects.view"), async (c) => {
  const projectId = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, projectId)) return;
  const docId = Number(c.req.param("docId"));
  const db = c.get("db");
  const route = routeLabel(c);
  const { doc, envelope } = await rpcDocumentForDownload(
    db,
    "core.fn_project_document_get",
    { project_id: projectId, doc_id: docId },
    route,
  );
  if (!doc) return respondRpc(c, envelope);
  const typeCode = String(doc.type_code ?? doc.type ?? "");
  if (!await denyUnlessProjectDocView(c, db, typeCode)) return;
  const enc = await getObject(projectDocKey(projectId, doc.storage_name));
  const plain = await decryptBytes(doc.iv, enc);
  c.header("Content-Type", "application/octet-stream");
  c.header("X-Content-Type-Options", "nosniff");
  c.header("Content-Disposition", `attachment; filename="${encodeURIComponent(doc.original_name)}"`);
  return c.body(plain.buffer as ArrayBuffer);
});

app.get("/v1/projects/:id/budget", ...requireCoreAuth, requirePermission("budget.view"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const db = c.get("db");
  if (!await projectById(db, id)) return c.json({ error: "Proyecto no encontrado" }, 404);
  return c.json(await listBudget(db, id));
});

app.get("/v1/projects/:id/budget/template", ...requireCoreAuth, requirePermission("budget.view"), (c) => {
  const bytes = buildBudgetTemplate();
  c.header("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
  c.header("Content-Disposition", 'attachment; filename="plantilla-presupuesto.xlsx"');
  return c.body(bytes.slice());
});

app.get("/v1/projects/:id/budget/export", ...requireCoreAuth, requirePermission("budget.view"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const db = c.get("db");
  const project = await projectById(db, id);
  if (!project) return c.json({ error: "Proyecto no encontrado" }, 404);
  const budget = await listBudget(db, id);
  const bytes = exportBudgetWorkbook(project.name, budget);
  c.header("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
  c.header("Content-Disposition", `attachment; filename="presupuesto-${project.code}.xlsx"`);
  return c.body(bytes.slice());
});

app.post("/v1/budget/preview", ...requireCoreAuth, requirePermission("budget.create"), async (c) => {
  const upload = await readExcelUpload(c);
  if ("error" in upload) {
    return respondApiError(c, "VALIDATION", upload.error, { route: routeLabel(c) });
  }
  const preview = previewBudgetExcel(upload.bytes);
  if (preview.errors.length && !preview.items.length) {
    return respondApiError(c, "VALIDATION", budgetReadErrorMessage(preview), {
      route: routeLabel(c),
      filename: upload.file.name,
      format: preview.format,
    }, preview.errors.flatMap((row) => row.messages));
  }
  return c.json(preview);
});

app.post("/v1/projects/:id/budget/preview", ...requireCoreAuth, requirePermission("budget.create"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const upload = await readExcelUpload(c);
  if ("error" in upload) {
    return respondApiError(c, "VALIDATION", upload.error, { route: routeLabel(c), project_id: id });
  }
  const db = c.get("db");
  if (!await projectById(db, id)) return c.json({ error: "Proyecto no encontrado" }, 404);
  const preview = previewBudgetExcel(upload.bytes);
  if (preview.errors.length && !preview.items.length) {
    return respondApiError(c, "VALIDATION", budgetReadErrorMessage(preview), {
      route: routeLabel(c),
      project_id: id,
      filename: upload.file.name,
      format: preview.format,
    }, preview.errors.flatMap((row) => row.messages));
  }
  return c.json(preview);
});

app.post("/v1/projects/:id/budget/import", ...requireCoreAuth, requirePermission("budget.update"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const upload = await readExcelUpload(c);
  if ("error" in upload) {
    return respondApiError(c, "VALIDATION", upload.error, { route: routeLabel(c), project_id: id });
  }
  const db = c.get("db");
  if (!await projectById(db, id)) return c.json({ error: "Proyecto no encontrado" }, 404);
  const report = await importBudgetExcel(db, id, upload.bytes);
  if (report.errors.length && !report.inserted) {
    return respondApiError(c, "VALIDATION", budgetReadErrorMessage(report), {
      route: routeLabel(c),
      project_id: id,
      filename: upload.file.name,
    }, report.errors.flatMap((row) => row.messages));
  }
  return c.json(report);
});

app.post("/v1/projects/:id/budget/chapters", ...requireCoreAuth, requirePermission("budget.create"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const body = await c.req.json<{ name?: string; code?: string; parent_id?: number | null }>();
  if (!body.name?.trim()) {
    return respondApiError(c, "VALIDATION", `Nombre de capítulo obligatorio en ${routeLabel(c)}`, {
      route: routeLabel(c),
      project_id: id,
    });
  }
  const db = c.get("db");
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_budget_chapter_create",
    {
      project_id: id,
      parent_id: body.parent_id || null,
      code: (body.code || "").trim(),
      name: body.name.trim(),
    },
    { route: routeLabel(c) },
  ));
});

app.patch("/v1/projects/:id/budget/chapters/:cid", ...requireCoreAuth, requirePermission("budget.update"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const cid = Number(c.req.param("cid"));
  const body = await c.req.json<{ name?: string; code?: string }>();
  const db = c.get("db");
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_budget_chapter_update",
    {
      project_id: id,
      id: cid,
      name: body.name,
      code: body.code,
    },
    { route: routeLabel(c) },
  ));
});

app.delete("/v1/projects/:id/budget/chapters/:cid", ...requireCoreAuth, requirePermission("budget.delete"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const cid = Number(c.req.param("cid"));
  const db = c.get("db");
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_budget_chapter_delete",
    { project_id: id, id: cid },
    { route: routeLabel(c) },
  ));
});

type BudgetItemInput = {
  chapter_id?: number | null;
  code?: string;
  description?: string;
  unit?: string;
  quantity?: number;
  unit_price?: number;
};

app.post("/v1/projects/:id/budget/items", ...requireCoreAuth, requirePermission("budget.create"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const body = await c.req.json<BudgetItemInput>();
  if (!body.description?.trim()) {
    return respondApiError(c, "VALIDATION", `Descripción de partida obligatoria en ${routeLabel(c)}`, {
      route: routeLabel(c),
      project_id: id,
    });
  }
  const db = c.get("db");
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_budget_item_create",
    {
      project_id: id,
      chapter_id: body.chapter_id || null,
      code: (body.code || "").trim(),
      description: body.description.trim(),
      unit: (body.unit || "").trim(),
      quantity: body.quantity ?? 0,
      unit_price: body.unit_price ?? 0,
    },
    { route: routeLabel(c) },
  ));
});

app.patch("/v1/projects/:id/budget/items/:iid", ...requireCoreAuth, requirePermission("budget.update"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const iid = Number(c.req.param("iid"));
  const body = await c.req.json<BudgetItemInput>();
  const db = c.get("db");
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_budget_item_update",
    {
      project_id: id,
      id: iid,
      chapter_id: body.chapter_id,
      code: body.code,
      description: body.description,
      unit: body.unit,
      quantity: body.quantity,
      unit_price: body.unit_price,
    },
    { route: routeLabel(c) },
  ));
});

app.delete("/v1/projects/:id/budget/items/:iid", ...requireCoreAuth, requirePermission("budget.delete"), async (c) => {
  const id = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, id)) return;
  const iid = Number(c.req.param("iid"));
  const db = c.get("db");
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_budget_item_delete",
    { project_id: id, id: iid },
    { route: routeLabel(c) },
  ));
});

app.post("/v1/workers/validate", ...requireCoreAuth, requirePermission("workers.create"), async (c) => {
  const body = await c.req.json<WorkerInput & { id?: number }>();
  const errors = validateWorkerFields(body);
  const db = c.get("db");
  const route = routeLabel(c);
  const exclude = body.id ?? 0;
  const checks: { field: string; value: string; err: string | null }[] = [
    { field: "curp", value: normUpper(body.curp), err: validateCurp(body.curp ?? "") },
    { field: "rfc", value: normUpper(body.rfc), err: validateRfc(body.rfc ?? "") },
    { field: "nss", value: formatNss(body.nss ?? ""), err: validateNss(body.nss ?? "") },
  ];
  for (const ch of checks) {
    if (ch.err) continue;
    const env = await callCoreFn<{ worker?: { id: number; first_name: string; last_name_p: string } | null; found?: boolean }>(
      db,
      "core.fn_worker_find_existing",
      {
        [ch.field]: ch.value,
        exclude_id: exclude,
      },
      { route },
    );
    const row = env.ok && env.data?.found ? env.data.worker : undefined;
    if (row) {
      errors[ch.field] =
        `Este ${ch.field.toUpperCase()} ya pertenece a ${row.first_name} ${row.last_name_p}`;
    }
  }
  return c.json({ ok: Object.keys(errors).length === 0, errors });
});

app.get("/v1/workers", ...requireCoreAuth, requirePermission("workers.view"), async (c) => {
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  const q = (c.req.query("q") ?? "").trim();
  const status = c.req.query("status");
  const projectId = c.req.query("project_id");
  if (projectId && !await denyUnlessProjectScope(c, Number(projectId))) return;
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_worker_list",
    {
      tenant_id: tid,
      q: q || undefined,
      status: status || undefined,
      project_id: projectId ? Number(projectId) : undefined,
    },
    { route: routeLabel(c) },
  ));
});

app.get("/v1/workers/:id", ...requireCoreAuth, requirePermission("workers.view"), async (c) => {
  const id = Number(c.req.param("id"));
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_worker_get",
    { id, tenant_id: tid },
    { route: routeLabel(c) },
  ));
});

function conflict(
  row: { id: number; first_name: string; last_name_p: string; curp: string; rfc: string; nss: string } | undefined,
  n: ReturnType<typeof normalizeWorker>,
  excludeId = 0,
) {
  if (row && row.id !== excludeId) {
    const field = row.curp === n.curp ? "CURP" : row.rfc === n.rfc ? "RFC" : "NSS";
    return {
      status: 409 as const,
      body: {
        error: `Este ${field} ya pertenece a ${row.first_name} ${row.last_name_p}`,
        worker_id: row.id,
      },
    };
  }
  return null;
}

async function findExistingWorker(
  db: Db,
  curp: string,
  rfc: string,
  nss: string,
  excludeId = 0,
  route = "worker-duplicate-check",
): Promise<
  { id: number; first_name: string; last_name_p: string; curp: string; rfc: string; nss: string } | undefined
> {
  const env = await callCoreFn<{
    worker?: { id: number; first_name: string; last_name_p: string; curp: string; rfc: string; nss: string } | null;
    found?: boolean;
  }>(db, "core.fn_worker_find_existing", { curp, rfc, nss, exclude_id: excludeId }, { route });
  if (!env.ok || !env.data?.found) return undefined;
  return env.data.worker ?? undefined;
}

app.post("/v1/workers", ...requireCoreAuth, requirePermission("workers.create"), async (c) => {
  const body = await c.req.json<WorkerInput & { project_id?: number }>();
  const errors = validateWorkerFields(body);
  const db = c.get("db");
  const route = routeLabel(c);
  if (Object.keys(errors).length) {
    return respondApiError(c, "VALIDATION", `Datos del trabajador inválidos en ${route}`, { route }, errors);
  }
  const n = normalizeWorker({ ...body, hire_type: "" });
  const existing = await findExistingWorker(db, n.curp, n.rfc, n.nss, 0, route);
  const cf = conflict(existing, n);
  if (cf) {
    return respondApiError(c, "CONFLICT", cf.body.error, { route, worker_id: cf.body.worker_id });
  }
  if (body.project_id) {
    const blocked = projectMustBe(
      await projectById(db, body.project_id),
      ["activo"],
      "Solo se asigna personal a proyectos activos",
    );
    if (blocked) {
      const code = blocked.status === 404 ? "NOT_FOUND" : "VALIDATION";
      return respondApiError(c, code, blocked.error, { route, project_id: body.project_id });
    }
    if (!await denyUnlessProjectScope(c, body.project_id)) return;
  }
  const tid = tenantScope(c.get("user"));
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_worker_create",
    { ...body, tenant_id: tid, project_id: body.project_id ?? null },
    { route },
  ));
});

app.patch("/v1/workers/:id", ...requireCoreAuth, requirePermission("workers.update"), async (c) => {
  const id = Number(c.req.param("id"));
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  const route = routeLabel(c);
  const curEnv = await callCoreFn<{ worker: Record<string, unknown> }>(db, "core.fn_worker_get", { id, tenant_id: tid }, { route });
  if (!curEnv.ok) return respondRpc(c, curEnv);
  const cur = curEnv.data?.worker;
  if (!cur) {
    return respondApiError(c, "NOT_FOUND", `Trabajador id=${id} no encontrado en ${route}`, { route, worker_id: id });
  }
  const body = await c.req.json<WorkerInput>();
  const merged = { ...cur, ...body } as WorkerInput;
  const errors = validateWorkerFields(merged);
  if (Object.keys(errors).length) {
    return respondApiError(c, "VALIDATION", `Datos del trabajador inválidos en ${route}`, { route, worker_id: id }, errors);
  }
  const n = normalizeWorker({ ...merged, hire_type: String(cur.hire_type || "") });
  const existing = await findExistingWorker(db, n.curp, n.rfc, n.nss, id, route);
  const cf = conflict(existing, n, id);
  if (cf) {
    return respondApiError(c, "CONFLICT", cf.body.error, { route, worker_id: cf.body.worker_id });
  }
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_worker_update",
    { id, tenant_id: tid, ...body },
    { route },
  ));
});

app.patch("/v1/workers/:id/pipeline", ...requireCoreAuth, requirePermission("workers.update"), async (c) => {
  const id = Number(c.req.param("id"));
  const { pipeline_status } = await c.req.json<{ pipeline_status: string }>();
  const allowed = ["incompleto", "listo_gafete", "impreso", "activo", "baja"];
  if (!allowed.includes(pipeline_status)) {
    return respondApiError(c, "VALIDATION", `Estado de pipeline inválido en ${routeLabel(c)}: ${pipeline_status}`, {
      route: routeLabel(c),
      worker_id: id,
      pipeline_status,
    });
  }
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  const env = await callCoreFn(
    db,
    "core.fn_worker_set_pipeline",
    { id, tenant_id: tid, pipeline_status },
    { route: routeLabel(c) },
  );
  if (!env.ok) return respondRpc(c, env);
  return respondRpc(c, {
    ...env,
    data: { ok: true, ...(env.data as Record<string, unknown>) },
  });
});

app.post("/v1/workers/:id/assign", ...requireCoreAuth, requirePermission("workers.update"), async (c) => {
  const id = Number(c.req.param("id"));
  const { project_id, active } = await c.req.json<{ project_id: number; active?: boolean }>();
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  const route = routeLabel(c);
  if (active === false) {
    return respondRpc(c, await callCoreFn(
      db,
      "core.fn_worker_unassign",
      { worker_id: id, project_id, tenant_id: tid },
      { route },
    ));
  }
  const project = await projectById(db, project_id);
  if (!project) {
    return respondApiError(c, "NOT_FOUND", `Proyecto id=${project_id} no encontrado en ${route}`, {
      route,
      project_id,
    });
  }
  if (project.status !== "activo") {
    return respondApiError(c, "VALIDATION", `Solo se asigna personal a proyectos activos en ${route}`, {
      route,
      project_id,
      status: project.status,
    });
  }
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_worker_assign",
    { worker_id: id, project_id, tenant_id: tid },
    { route },
  ));
});

app.get("/v1/workers/import/template", ...requireCoreAuth, requirePermission("workers.create"), async (c) => {
  const db = c.get("db");
  const bytes = buildImportTemplate(await listCompanies(db));
  c.header("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
  c.header("Content-Disposition", 'attachment; filename="plantilla-padron-arctec.xlsx"');
  return c.body(bytes.buffer as ArrayBuffer);
});

app.post("/v1/workers/import", ...requireCoreAuth, requirePermission("workers.create"), async (c) => {
  const form = await c.req.formData();
  const file = form.get("file");
  const projectId = Number(form.get("project_id") || 0) || null;
  if (!(file instanceof File)) return c.json({ error: "Archivo Excel requerido" }, 400);
  const bytes = new Uint8Array(await file.arrayBuffer());
  const db = c.get("db");
  if (projectId) {
    const blocked = projectMustBe(
      await projectById(db, projectId),
      ["activo"],
      "Solo se importan altas a proyectos activos",
    );
    if (blocked) return c.json({ error: blocked.error }, blocked.status);
  }
  const report = await importExcel(db, bytes, projectId, c.get("user").id || null);
  return c.json(report);
});

app.post("/v1/workers/:id/documents", ...requireCoreAuth, requirePermission("documents.create"), async (c) => {
  const id = Number(c.req.param("id"));
  const form = await c.req.formData();
  const type = String(form.get("type") || "");
  const file = form.get("file");
  if (!(file instanceof File) || !type) {
    return respondApiError(c, "VALIDATION", `type y file son requeridos en ${routeLabel(c)}`, {
      route: routeLabel(c),
      worker_id: id,
    });
  }
  const db = c.get("db");
  const tid = tenantScope(c.get("user"));
  const route = routeLabel(c);
  const workerEnv = await callCoreFn(db, "core.fn_worker_get", { id, tenant_id: tid }, { route });
  if (!workerEnv.ok) return respondRpc(c, workerEnv);

  const catEnv = await callCoreFn<{ document_types?: Array<Record<string, unknown>> }>(
    db,
    "core.fn_catalogs",
    {},
    { route },
  );
  const policy = (catEnv.data?.document_types ?? []).find((t) => String(t.code) === type) as {
    validity_mode: string;
    requires_issued_at: boolean;
    requires_expires_at: boolean;
  } | undefined;
  if (!policy) {
    return respondApiError(c, "VALIDATION", `Tipo de documento no válido en ${route}: ${type}`, {
      route,
      worker_id: id,
      type,
    });
  }

  const issuedAt = String(form.get("issued_at") || "").trim() || null;
  const expiresAt = String(form.get("expires_at") || "").trim() || null;
  const imssCompanyId = Number(form.get("imss_company_id") || 0) || null;
  const imssAltaAt = String(form.get("imss_alta_at") || "").trim() || null;
  const imssBajaAt = String(form.get("imss_baja_at") || "").trim() || null;

  if (policy.requires_issued_at && !issuedAt) {
    return respondApiError(c, "VALIDATION", `Indique la fecha de emisión del documento en ${route}`, { route, worker_id: id });
  }
  if (policy.requires_expires_at && !expiresAt) {
    return respondApiError(c, "VALIDATION", `Indique la fecha de vigencia / vencimiento en ${route}`, { route, worker_id: id });
  }
  if (type === "alta_imss" && !imssCompanyId) {
    return respondApiError(c, "VALIDATION", `Seleccione la empresa patrón del alta IMSS en ${route}`, { route, worker_id: id });
  }
  if (type === "alta_imss" && !imssAltaAt) {
    return respondApiError(c, "VALIDATION", `Indique la fecha de alta IMSS en ${route}`, { route, worker_id: id });
  }
  if (type === "baja_imss" && !imssBajaAt) {
    return respondApiError(c, "VALIDATION", `Indique la fecha de baja IMSS en ${route}`, { route, worker_id: id });
  }

  const bytes = new Uint8Array(await file.arrayBuffer());
  try {
    await storeDocument(db, id, type, file.name, file.type || "application/octet-stream", bytes, c.get("user").id, {
      issued_at: issuedAt,
      expires_at: expiresAt,
      imss_company_id: imssCompanyId,
      imss_alta_at: imssAltaAt,
      imss_baja_at: imssBajaAt,
    });
  } catch (error) {
    const message = error instanceof Error ? error.message : "No se pudo guardar el documento";
    return respondApiError(c, "VALIDATION", message, { route, worker_id: id });
  }
  return c.json({
    ok: true,
    checklist: await checklistFor(db, id, tid),
    ...await imssFlagsFor(db, id, tid),
  });
});

app.get("/v1/workers/:id/documents/:docId", ...requireCoreAuth, requirePermission("documents.view"), async (c) => {
  const workerId = Number(c.req.param("id"));
  const docId = Number(c.req.param("docId"));
  const db = c.get("db");
  const route = routeLabel(c);
  const { doc, envelope } = await rpcDocumentForDownload(
    db,
    "core.fn_worker_document_get",
    { worker_id: workerId, doc_id: docId },
    route,
  );
  if (!doc) return respondRpc(c, envelope);
  const enc = await getObject(workerDocKey(workerId, doc.storage_name));
  const plain = await decryptBytes(doc.iv, enc);
  c.header("Content-Type", "application/octet-stream");
  c.header("X-Content-Type-Options", "nosniff");
  c.header("Content-Disposition", `attachment; filename="${encodeURIComponent(doc.original_name)}"`);
  return c.body(plain.buffer as ArrayBuffer);
});

app.get("/v1/workers/:id/photo", ...requireCoreAuth, requirePermission("workers.view"), async (c) => {
  const id = Number(c.req.param("id"));
  const db = c.get("db");
  const bytes = await loadCurrentPhoto(db, id);
  if (!bytes) return c.json({ error: "Sin foto" }, 404);
  const jpeg = bytes[0] === 0xff && bytes[1] === 0xd8;
  // La foto sí se sirve inline (es una imagen legítima usada en la UI para
  // mostrar el rostro de la persona), pero se fija el Content-Type real
  // detectado por firma de bytes, no el que declaró quien la subió, y se
  // agrega nosniff -- así el navegador no puede reinterpretarla como HTML.
  c.header("Content-Type", jpeg ? "image/jpeg" : "image/png");
  c.header("X-Content-Type-Options", "nosniff");
  c.header("Cache-Control", "private, max-age=30");
  return c.body(bytes.buffer as ArrayBuffer);
});

app.get("/v1/badge-qr", ...requireCoreAuth, requirePermission("documents.view"), async (c) => {
  const curp = (c.req.query("curp") ?? "").trim().toUpperCase();
  if (curp.length < 10) return c.json({ error: "CURP requerida" }, 400);
  const png = await badgeQrPng(curp);
  c.header("Content-Type", "image/png");
  c.header("Cache-Control", "private, max-age=60");
  return c.body(png.buffer as ArrayBuffer);
});

app.post("/v1/projects/:id/badge-jobs", ...requireCoreAuth, requirePermission("documents.create"), async (c) => {
  const projectId = Number(c.req.param("id"));
  if (!await denyUnlessProjectScope(c, projectId)) return;
  const body = await c.req.json<{ worker_ids?: number[] }>().catch(() => ({ worker_ids: [] as number[] }));
  const db = c.get("db");
  const user = c.get("user");
  const tid = tenantScope(user);
  const route = routeLabel(c);
  const blocked = projectMustBe(
    await projectById(db, projectId),
    ["activo"],
    "Solo se generan gafetes de proyectos activos",
  );
  if (blocked) {
    const code = blocked.status === 404 ? "NOT_FOUND" : "VALIDATION";
    return respondApiError(c, code, blocked.error, { route, project_id: projectId });
  }
  let ids = body.worker_ids ?? [];
  if (!ids.length) {
    const listEnv = await callCoreFn<{ workers?: Array<Record<string, unknown>> }>(
      db,
      "core.fn_worker_list",
      { tenant_id: tid, project_id: projectId, status: "activo" },
      { route },
    );
    if (!listEnv.ok) return respondRpc(c, listEnv);
    ids = (listEnv.data?.workers ?? [])
      .filter((w) => w.needs_badge && ["listo_gafete", "impreso", "activo"].includes(String(w.pipeline_status)))
      .map((w) => Number(w.id));
  }
  if (!ids.length) {
    return respondApiError(c, "VALIDATION", `No hay personal activo con foto para imprimir en ${route}`, {
      route,
      project_id: projectId,
    });
  }
  const bytes = await generateBadgePdf(db, projectId, ids);
  const createEnv = await callCoreFn(
    db,
    "core.fn_badge_job_create",
    {
      project_id: projectId,
      worker_ids: ids,
      created_by_id: user.id,
      created_by_name: user.display_name,
    },
    { route },
  );
  if (!createEnv.ok) return respondRpc(c, createEnv);
  const jobId = Number((createEnv.data as { id?: number })?.id);
  await saveJobPdf(bytes, jobId);
  for (const wid of ids) {
    await refreshPipeline(db, wid, tid);
  }
  return respondRpc(c, {
    ...createEnv,
    data: { ...(createEnv.data as Record<string, unknown>), count: ids.length },
  });
});

app.get("/v1/badge-jobs", ...requireCoreAuth, requirePermission("documents.view"), async (c) => {
  const db = c.get("db");
  return respondRpc(c, await callCoreFn(db, "core.fn_badge_job_list", {}, { route: routeLabel(c) }));
});

app.get("/v1/badge-jobs/:id", ...requireCoreAuth, requirePermission("documents.view"), async (c) => {
  const id = Number(c.req.param("id"));
  const db = c.get("db");
  return respondRpc(c, await callCoreFn(db, "core.fn_badge_job_get", { job_id: id }, { route: routeLabel(c) }));
});

app.get("/v1/badge-jobs/:id/pdf", ...requireCoreAuth, requirePermission("documents.view"), async (c) => {
  const id = Number(c.req.param("id"));
  const db = c.get("db");
  const route = routeLabel(c);
  const jobEnv = await callCoreFn<{ job?: { pdf_path?: string | null } }>(
    db,
    "core.fn_badge_job_get",
    { job_id: id },
    { route },
  );
  if (!jobEnv.ok) return respondRpc(c, jobEnv);
  const pdfPath = jobEnv.data?.job?.pdf_path || badgeJobPdfKey(id);
  const bytes = await getObject(pdfPath);
  c.header("Content-Type", "application/pdf");
  c.header("Content-Disposition", `attachment; filename="gafetes-${id}.pdf"`);
  return c.body(bytes.buffer as ArrayBuffer);
});

app.patch("/v1/badge-jobs/:id/people/:workerId", ...requireCoreAuth, requirePermission("documents.create"), async (c) => {
  const jobId = Number(c.req.param("id"));
  const workerId = Number(c.req.param("workerId"));
  const { delivered } = await c.req.json<{ delivered: boolean }>();
  const db = c.get("db");
  return respondRpc(c, await callCoreFn(
    db,
    "core.fn_badge_job_set_delivered",
    { job_id: jobId, worker_id: workerId, delivered },
    { route: routeLabel(c) },
  ));
});

registerPayrollRoutes(app);
registerExpenseRoutes(app);
registerExpenseCatalogRoutes(app);
registerWarehouseRoutes(app);
registerCostControlRoutes(app);
registerWorkProgramRoutes(app);
registerIamRoutes(app);

const port = config.port;

function startup(name: string, p: Promise<unknown>): Promise<unknown> {
  return p.then(() => {
    console.log(`[startup] ok ${name}`);
  }).catch((e: unknown) => {
    const msg = e instanceof Error ? e.message : String(e);
    console.error(`[startup] FAIL ${name}: ${msg}`);
    throw e;
  });
}

// Fail-fast (Fase 7): antes con SQLite la app "siempre arrancaba" (creaba
// el archivo si no existía). Con Postgres/Redis, si alguna de las 5
// conexiones no responde al arrancar, es mejor fallar ruidosamente que
// dejar que el primer request autenticado descubra el problema.
await Promise.all([
  startup("postgres core (DATABASE_URL_CORE)", pingCoreDb()),
  startup("postgres platform (DATABASE_URL_PLATFORM)", pingPlatformDb()),
  startup("redis iam+core", pingRedis().then((r) => {
    if (!r.iam || !r.core) {
      throw new Error(
        `Redis no responde (iam=${r.iam} core=${r.core}). REDIS_URL_* debe usar el hostname de Redis URL (internal), no el UUID de Postgres.`,
      );
    }
  })),
  startup("storage S3/R2", pingStorage().then((s) => {
    if (!s.ok) {
      throw new Error(`Storage no responde: ${s.error ?? "sin detalle"}`);
    }
    if (!config.isDev && !s.configured) {
      throw new Error("S3_ENDPOINT/S3_BUCKET/S3_* son obligatorios fuera de desarrollo");
    }
  })),
]);

Deno.serve({ port, hostname: "0.0.0.0" }, app.fetch);
console.log(`API panel-obra en http://127.0.0.1:${port}`);