-- ============================================================================
-- HR EXTENSIONS - FASE 8 ERP-Core
-- ERP Vidrio Templado
-- ============================================================================

CREATE SCHEMA IF NOT EXISTS hr;

DO $$ BEGIN
    CREATE TYPE hr.expense_status AS ENUM ('draft', 'submitted', 'approved', 'posted', 'paid', 'rejected');
EXCEPTION WHEN duplicate_object THEN NULL;
END $$;

DO $$ BEGIN
    CREATE TYPE hr.payslip_status AS ENUM ('draft', 'verify', 'done', 'cancel');
EXCEPTION WHEN duplicate_object THEN NULL;
END $$;

-- Ubicaciones (áreas de producción)
CREATE TABLE IF NOT EXISTS hr.work_locations (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    name VARCHAR(100) NOT NULL,
    -- Extensiones vidrio
    tipo_area VARCHAR(50), -- 'corte', 'pulido', 'templado', 'almacen', 'instalacion'
    capacidad_m2 NUMERIC(10,2),
    tiene_horno BOOLEAN DEFAULT false,
    temperatura_max INTEGER,
    active BOOLEAN DEFAULT true,
    created_at TIMESTAMPTZ DEFAULT NOW()
);

-- Tipos de habilidad
CREATE TABLE IF NOT EXISTS hr.skill_types (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    name VARCHAR(100) NOT NULL,
    created_at TIMESTAMPTZ DEFAULT NOW()
);

-- Habilidades
CREATE TABLE IF NOT EXISTS hr.skills (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    skill_type_id UUID REFERENCES hr.skill_types(id),
    name VARCHAR(100) NOT NULL,
    -- Extensiones vidrio
    tipo_proceso VARCHAR(50), -- 'corte', 'biselado', 'templado', 'instalacion'
    maquina_habilitado VARCHAR(100),
    created_at TIMESTAMPTZ DEFAULT NOW()
);

-- Niveles
CREATE TABLE IF NOT EXISTS hr.skill_levels (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    skill_type_id UUID REFERENCES hr.skill_types(id),
    name VARCHAR(100) NOT NULL,
    level INTEGER DEFAULT 1,
    created_at TIMESTAMPTZ DEFAULT NOW()
);

-- Habilidades de empleado
CREATE TABLE IF NOT EXISTS hr.employee_skills (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    employee_id UUID NOT NULL,
    skill_id UUID REFERENCES hr.skills(id),
    skill_level_id UUID REFERENCES hr.skill_levels(id),
    created_at TIMESTAMPTZ DEFAULT NOW()
);

-- Gastos
CREATE TABLE IF NOT EXISTS hr.expense_sheets (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    employee_id UUID NOT NULL,
    name VARCHAR(100) NOT NULL,
    state hr.expense_status DEFAULT 'draft',
    total_amount NUMERIC(12,2) DEFAULT 0,
    proyecto_id UUID,
    obra_id UUID,
    created_at TIMESTAMPTZ DEFAULT NOW()
);

CREATE TABLE IF NOT EXISTS hr.expenses (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    sheet_id UUID REFERENCES hr.expense_sheets(id) ON DELETE CASCADE,
    employee_id UUID NOT NULL,
    name VARCHAR(200) NOT NULL,
    date DATE DEFAULT CURRENT_DATE,
    total_amount NUMERIC(12,2) NOT NULL,
    state hr.expense_status DEFAULT 'draft',
    created_at TIMESTAMPTZ DEFAULT NOW()
);

-- Nómina
CREATE TABLE IF NOT EXISTS hr.payslip_structures (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    name VARCHAR(100) NOT NULL,
    code VARCHAR(20) NOT NULL,
    tipo_pago VARCHAR(50),
    active BOOLEAN DEFAULT true,
    created_at TIMESTAMPTZ DEFAULT NOW(),
    CONSTRAINT uq_payslip_structures_code UNIQUE(tenant_id, code)
);

CREATE TABLE IF NOT EXISTS hr.payslips (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    employee_id UUID NOT NULL,
    structure_id UUID REFERENCES hr.payslip_structures(id),
    date_from DATE NOT NULL,
    date_to DATE NOT NULL,
    state hr.payslip_status DEFAULT 'draft',
    gross NUMERIC(12,2) DEFAULT 0,
    net NUMERIC(12,2) DEFAULT 0,
    area_id UUID REFERENCES hr.work_locations(id),
    metros_producidos NUMERIC(10,2),
    created_at TIMESTAMPTZ DEFAULT NOW()
);

CREATE TABLE IF NOT EXISTS hr.payslip_lines (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    payslip_id UUID REFERENCES hr.payslips(id) ON DELETE CASCADE,
    name VARCHAR(100) NOT NULL,
    code VARCHAR(20),
    amount NUMERIC(12,2) DEFAULT 0,
    created_at TIMESTAMPTZ DEFAULT NOW()
);

-- Índices
CREATE INDEX IF NOT EXISTS idx_work_locations_tenant ON hr.work_locations(tenant_id);
CREATE INDEX IF NOT EXISTS idx_skill_types_tenant ON hr.skill_types(tenant_id);
CREATE INDEX IF NOT EXISTS idx_skills_tenant ON hr.skills(tenant_id);
CREATE INDEX IF NOT EXISTS idx_expense_sheets_tenant ON hr.expense_sheets(tenant_id);
CREATE INDEX IF NOT EXISTS idx_payslips_tenant ON hr.payslips(tenant_id);

-- RLS
ALTER TABLE hr.work_locations ENABLE ROW LEVEL SECURITY;
ALTER TABLE hr.skill_types ENABLE ROW LEVEL SECURITY;
ALTER TABLE hr.skills ENABLE ROW LEVEL SECURITY;
ALTER TABLE hr.skill_levels ENABLE ROW LEVEL SECURITY;
ALTER TABLE hr.expense_sheets ENABLE ROW LEVEL SECURITY;
ALTER TABLE hr.expenses ENABLE ROW LEVEL SECURITY;
ALTER TABLE hr.payslip_structures ENABLE ROW LEVEL SECURITY;
ALTER TABLE hr.payslips ENABLE ROW LEVEL SECURITY;

DROP POLICY IF EXISTS tenant_isolation_work_locations ON hr.work_locations;
CREATE POLICY tenant_isolation_work_locations ON hr.work_locations
    USING (tenant_id = current_setting('app.current_tenant_id', true)::UUID);

DROP POLICY IF EXISTS tenant_isolation_skill_types ON hr.skill_types;
CREATE POLICY tenant_isolation_skill_types ON hr.skill_types
    USING (tenant_id = current_setting('app.current_tenant_id', true)::UUID);

DROP POLICY IF EXISTS tenant_isolation_skills ON hr.skills;
CREATE POLICY tenant_isolation_skills ON hr.skills
    USING (tenant_id = current_setting('app.current_tenant_id', true)::UUID);

DROP POLICY IF EXISTS tenant_isolation_skill_levels ON hr.skill_levels;
CREATE POLICY tenant_isolation_skill_levels ON hr.skill_levels
    USING (tenant_id = current_setting('app.current_tenant_id', true)::UUID);

DROP POLICY IF EXISTS tenant_isolation_expense_sheets ON hr.expense_sheets;
CREATE POLICY tenant_isolation_expense_sheets ON hr.expense_sheets
    USING (tenant_id = current_setting('app.current_tenant_id', true)::UUID);

DROP POLICY IF EXISTS tenant_isolation_expenses ON hr.expenses;
CREATE POLICY tenant_isolation_expenses ON hr.expenses
    USING (tenant_id = current_setting('app.current_tenant_id', true)::UUID);

DROP POLICY IF EXISTS tenant_isolation_payslip_structures ON hr.payslip_structures;
CREATE POLICY tenant_isolation_payslip_structures ON hr.payslip_structures
    USING (tenant_id = current_setting('app.current_tenant_id', true)::UUID);

DROP POLICY IF EXISTS tenant_isolation_payslips ON hr.payslips;
CREATE POLICY tenant_isolation_payslips ON hr.payslips
    USING (tenant_id = current_setting('app.current_tenant_id', true)::UUID);