import type { Context, Hono } from "hono";
import type { AuthUser } from "./auth.ts";
import { tenantScope } from "./auth.ts";
import { requireCoreAuth } from "./scope.ts";
import type { Db } from "./db.ts";
import { callCoreFn } from "./rpc.ts";
import { respondRpc, routeLabel } from "./http_errors.ts";
import { requireAnyPermission, requirePermission } from "./permissions.ts";

type App = Hono<{ Variables: { user: AuthUser; db: Db } }>;

function tid(c: { get: (k: "user") => AuthUser }): number {
  return tenantScope(c.get("user")) ?? 0;
}

function actor(c: Context): { id: number; name: string } {
  const u = c.get("user");
  return { id: u.id, name: u.display_name };
}

export function registerWarehouseRoutes(app: App) {
  app.get("/v1/warehouses", ...requireCoreAuth, requireAnyPermission("view_warehouse", "manage_warehouse"), async (c) => {
    const db = c.get("db");
    const env = await callCoreFn(db, "core.fn_warehouse_list", {
      tenant_id: tid(c),
      include_closed: c.req.query("include_closed") === "true",
    }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.post("/v1/warehouses/central/ensure", ...requireCoreAuth, requirePermission("manage_warehouse"), async (c) => {
    const db = c.get("db");
    const env = await callCoreFn(db, "core.fn_warehouse_ensure_central", { tenant_id: tid(c) }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.post("/v1/projects/:id/warehouse/open", ...requireCoreAuth, requirePermission("manage_warehouse"), async (c) => {
    const db = c.get("db");
    const env = await callCoreFn(db, "core.fn_warehouse_open_project", {
      tenant_id: tid(c),
      project_id: Number(c.req.param("id")),
    }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.post("/v1/projects/:id/warehouse/close", ...requireCoreAuth, requirePermission("close_warehouse"), async (c) => {
    const body = await c.req.json<{ force?: boolean; close_notes?: string }>().catch(() => ({} as { force?: boolean; close_notes?: string }));
    const db = c.get("db");
    const a = actor(c);
    const env = await callCoreFn(db, "core.fn_warehouse_close_project", {
      project_id: Number(c.req.param("id")),
      force: body.force,
      closed_by_name: a.name,
      close_notes: body.close_notes,
    }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.get("/v1/warehouses/:id/stock", ...requireCoreAuth, requireAnyPermission("view_warehouse", "manage_warehouse"), async (c) => {
    const db = c.get("db");
    const env = await callCoreFn(db, "core.fn_warehouse_stock_list", {
      tenant_id: tid(c),
      warehouse_id: Number(c.req.param("id")),
      global: false,
    }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.get("/v1/warehouses/stock/global", ...requireCoreAuth, requireAnyPermission("view_warehouse", "manage_warehouse"), async (c) => {
    const db = c.get("db");
    const env = await callCoreFn(db, "core.fn_warehouse_stock_list", {
      tenant_id: tid(c),
      global: true,
    }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.get("/v1/warehouses/:id/movements", ...requireCoreAuth, requireAnyPermission("view_warehouse", "manage_warehouse"), async (c) => {
    const db = c.get("db");
    const env = await callCoreFn(db, "core.fn_warehouse_movement_list", {
      warehouse_id: Number(c.req.param("id")),
      material_id: c.req.query("material_id"),
    }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.post("/v1/warehouse-materials", ...requireCoreAuth, requirePermission("manage_warehouse"), async (c) => {
    const body = await c.req.json<Record<string, unknown>>();
    const db = c.get("db");
    const env = await callCoreFn(db, "core.fn_warehouse_material_upsert", { ...body, tenant_id: tid(c) }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.post("/v1/warehouses/:id/entries", ...requireCoreAuth, requirePermission("manage_warehouse"), async (c) => {
    const body = await c.req.json<Record<string, unknown>>();
    const db = c.get("db");
    const a = actor(c);
    const env = await callCoreFn(db, "core.fn_warehouse_entry_create", {
      ...body,
      tenant_id: tid(c),
      warehouse_id: Number(c.req.param("id")),
      created_by_id: a.id,
      created_by_name: a.name,
    }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.post("/v1/warehouses/:id/exits", ...requireCoreAuth, requirePermission("manage_warehouse"), async (c) => {
    const body = await c.req.json<Record<string, unknown>>();
    const db = c.get("db");
    const a = actor(c);
    const env = await callCoreFn(db, "core.fn_warehouse_exit_create", {
      ...body,
      tenant_id: tid(c),
      warehouse_id: Number(c.req.param("id")),
      created_by_id: a.id,
      created_by_name: a.name,
    }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });

  app.post("/v1/warehouse-transfers", ...requireCoreAuth, requirePermission("manage_warehouse"), async (c) => {
    const body = await c.req.json<Record<string, unknown>>();
    const db = c.get("db");
    const a = actor(c);
    const env = await callCoreFn(db, "core.fn_warehouse_transfer_create", {
      ...body,
      tenant_id: tid(c),
      created_by_name: a.name,
    }, { route: routeLabel(c) });
    return respondRpc(c, env);
  });
}