--liquibase formatted sql
-- PANELS · core · almacén central y por obra

--changeset panel:core-019a-warehouse-materials endDelimiter:; splitStatements:true
--preconditions onFail:MARK_RAN
--precondition-sql-check expectedResult:0 SELECT COUNT(*) FROM information_schema.tables WHERE table_schema='core' AND table_name='warehouse_materials'
CREATE TABLE core.warehouse_materials (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  tenant_id INTEGER NOT NULL,
  code TEXT NOT NULL,
  name TEXT NOT NULL,
  unit TEXT NOT NULL DEFAULT '',
  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  UNIQUE (tenant_id, code)
);
CREATE INDEX idx_core_warehouse_materials_tenant ON core.warehouse_materials(tenant_id);

--changeset panel:core-019b-warehouses endDelimiter:; splitStatements:true
--preconditions onFail:MARK_RAN
--precondition-sql-check expectedResult:0 SELECT COUNT(*) FROM information_schema.tables WHERE table_schema='core' AND table_name='warehouses'
CREATE TABLE core.warehouses (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  tenant_id INTEGER NOT NULL,
  kind TEXT NOT NULL CHECK (kind IN ('central', 'project')),
  project_id BIGINT REFERENCES core.projects(id) ON DELETE CASCADE,
  status TEXT NOT NULL DEFAULT 'open' CHECK (status IN ('open', 'closing', 'closed')),
  opened_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  closed_at TIMESTAMPTZ,
  closed_by_name TEXT NOT NULL DEFAULT '',
  close_notes TEXT NOT NULL DEFAULT ''
);
CREATE UNIQUE INDEX idx_core_warehouses_central ON core.warehouses(tenant_id) WHERE kind = 'central';
CREATE UNIQUE INDEX idx_core_warehouses_project ON core.warehouses(project_id) WHERE kind = 'project' AND project_id IS NOT NULL;
CREATE INDEX idx_core_warehouses_tenant ON core.warehouses(tenant_id);

--changeset panel:core-019c-warehouse-stock endDelimiter:; splitStatements:true
--preconditions onFail:MARK_RAN
--precondition-sql-check expectedResult:0 SELECT COUNT(*) FROM information_schema.tables WHERE table_schema='core' AND table_name='warehouse_stock'
CREATE TABLE core.warehouse_stock (
  warehouse_id BIGINT NOT NULL REFERENCES core.warehouses(id) ON DELETE CASCADE,
  material_id BIGINT NOT NULL REFERENCES core.warehouse_materials(id) ON DELETE CASCADE,
  qty_on_hand NUMERIC(14,4) NOT NULL DEFAULT 0,
  avg_unit_cost NUMERIC(14,4) NOT NULL DEFAULT 0,
  PRIMARY KEY (warehouse_id, material_id)
);

--changeset panel:core-019d-warehouse-transfers endDelimiter:; splitStatements:true
--preconditions onFail:MARK_RAN
--precondition-sql-check expectedResult:0 SELECT COUNT(*) FROM information_schema.tables WHERE table_schema='core' AND table_name='warehouse_transfers'
CREATE TABLE core.warehouse_transfers (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  tenant_id INTEGER NOT NULL,
  from_warehouse_id BIGINT NOT NULL REFERENCES core.warehouses(id),
  to_warehouse_id BIGINT NOT NULL REFERENCES core.warehouses(id),
  material_id BIGINT NOT NULL REFERENCES core.warehouse_materials(id),
  quantity NUMERIC(14,4) NOT NULL,
  unit_cost NUMERIC(14,4) NOT NULL DEFAULT 0,
  status TEXT NOT NULL DEFAULT 'completed' CHECK (status IN ('pending', 'completed', 'cancelled')),
  transfer_date DATE NOT NULL DEFAULT CURRENT_DATE,
  notes TEXT NOT NULL DEFAULT '',
  created_by_name TEXT NOT NULL DEFAULT '',
  created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX idx_core_warehouse_transfers_tenant ON core.warehouse_transfers(tenant_id);

--changeset panel:core-019e-warehouse-movements endDelimiter:; splitStatements:true
--preconditions onFail:MARK_RAN
--precondition-sql-check expectedResult:0 SELECT COUNT(*) FROM information_schema.tables WHERE table_schema='core' AND table_name='warehouse_movements'
CREATE TABLE core.warehouse_movements (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  tenant_id INTEGER NOT NULL,
  warehouse_id BIGINT NOT NULL REFERENCES core.warehouses(id),
  material_id BIGINT NOT NULL REFERENCES core.warehouse_materials(id),
  movement_type TEXT NOT NULL CHECK (movement_type IN ('entry', 'exit', 'transfer_out', 'transfer_in', 'adjustment')),
  transfer_id BIGINT REFERENCES core.warehouse_transfers(id) ON DELETE SET NULL,
  movement_date DATE NOT NULL DEFAULT CURRENT_DATE,
  quantity NUMERIC(14,4) NOT NULL,
  unit_cost NUMERIC(14,4) NOT NULL DEFAULT 0,
  total_cost NUMERIC(14,2) NOT NULL DEFAULT 0,
  budget_item_id BIGINT REFERENCES core.budget_items(id) ON DELETE SET NULL,
  destination_note TEXT NOT NULL DEFAULT '',
  expense_id BIGINT REFERENCES core.expense_entries(id) ON DELETE SET NULL,
  adjustment_reason TEXT NOT NULL DEFAULT '',
  created_by_id INTEGER,
  created_by_name TEXT NOT NULL DEFAULT '',
  created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX idx_core_warehouse_movements_wh ON core.warehouse_movements(warehouse_id, movement_date);
CREATE INDEX idx_core_warehouse_movements_budget ON core.warehouse_movements(budget_item_id);

--changeset panel:core-019f-warehouse-material-links-fk endDelimiter:; splitStatements:true
ALTER TABLE core.warehouse_material_budget_links
  ADD CONSTRAINT warehouse_material_budget_links_material_fk
  FOREIGN KEY (material_id) REFERENCES core.warehouse_materials(id) ON DELETE CASCADE;