feat: otimização de performance e ajustes finais

Documents/sigfip/sigefp/phase7_hardening.sql

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+-- Phase 7 Hardening: Constraints and Indexes
+
+-- 1. Unique Active Payroll Run
+-- Prevents duplicate runs for same Period, Ministry, OrgUnit, RunType unless older ones are Closed/Cancelled
+CREATE UNIQUE INDEX IF NOT EXISTS idx_payroll_run_active_unique 
+ON payroll_run (period_id, ministry_id, org_unit_id, run_type) 
+WHERE status NOT IN ('CLOSED', 'CANCELLED');
+
+-- 2. Contract Date Validation
+DO $$
+BEGIN
+    IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'check_contract_dates') THEN
+        ALTER TABLE agent_contract ADD CONSTRAINT check_contract_dates CHECK (start_date <= end_date OR end_date IS NULL);
+    END IF;
+END $$;
+
+-- 3. Performance Indexes
+-- For Batch Fetching Absences (Check table existence first to avoid error if feature disabled)
+DO $$
+BEGIN
+    IF EXISTS (SELECT FROM pg_tables WHERE schemaname = 'public' AND tablename = 'absence') THEN
+        CREATE INDEX IF NOT EXISTS idx_absence_agent_dates ON absence (agent_id, start_date, end_date);
+    END IF;
+END $$;
+
+-- For Batch Fetching Attendance
+DO $$
+BEGIN
+    IF EXISTS (SELECT FROM pg_tables WHERE schemaname = 'public' AND tablename = 'attendance_record') THEN
+        CREATE INDEX IF NOT EXISTS idx_attendance_agent_date ON attendance_record (agent_id, date);
+    END IF;
+END $$;
+
+-- For Batch Fetching Budget Lines
+CREATE INDEX IF NOT EXISTS idx_budget_line_org_econ ON budget_line (org_unit_id, economic_class);
+
+-- For Batch Fetching Contracts
+CREATE INDEX IF NOT EXISTS idx_agent_contract_agent_period ON agent_contract (agent_id, start_date, end_date);
+
+-- 4. Date Integrity Constraints (P15)
+-- Payroll Period Dates
+DO $$
+BEGIN
+    IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'chk_period_dates') THEN
+        ALTER TABLE payroll_period ADD CONSTRAINT chk_period_dates CHECK (start_date <= end_date);
+    END IF;
+END $$;
+
+-- Absence Dates
+DO $$
+BEGIN
+    IF EXISTS (SELECT FROM pg_tables WHERE schemaname = 'public' AND tablename = 'absence') THEN
+        IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'chk_absence_dates') THEN
+            ALTER TABLE absence ADD CONSTRAINT chk_absence_dates CHECK (start_date <= end_date);
+        END IF;
+    END IF;
+END $$;