--liquibase formatted sql
-- PANELS · core · programa de obra (cronograma / erogaciones)

--changeset panel:core-029a-work-programs 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='work_programs'
CREATE TABLE core.work_programs (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  project_id INTEGER NOT NULL REFERENCES core.projects(id) ON DELETE CASCADE,
  start_date DATE NOT NULL,
  end_date DATE NOT NULL,
  duration_days INTEGER NOT NULL,
  period_unit TEXT NOT NULL DEFAULT 'week' CHECK (period_unit IN ('week')),
  source TEXT NOT NULL DEFAULT 'manual' CHECK (source IN ('import', 'wizard', 'manual')),
  status TEXT NOT NULL DEFAULT 'draft' CHECK (status IN ('draft', 'active')),
  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
  UNIQUE (project_id)
);

CREATE INDEX idx_core_work_programs_project ON core.work_programs(project_id);

--changeset panel:core-029b-work-program-periods 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='work_program_periods'
CREATE TABLE core.work_program_periods (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  program_id BIGINT NOT NULL REFERENCES core.work_programs(id) ON DELETE CASCADE,
  period_index INTEGER NOT NULL,
  label TEXT NOT NULL,
  start_date DATE NOT NULL,
  end_date DATE NOT NULL,
  UNIQUE (program_id, period_index)
);

CREATE INDEX idx_core_work_program_periods_program ON core.work_program_periods(program_id);

--changeset panel:core-029c-work-program-concept-slots 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='work_program_concept_slots'
CREATE TABLE core.work_program_concept_slots (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  program_id BIGINT NOT NULL REFERENCES core.work_programs(id) ON DELETE CASCADE,
  budget_item_id BIGINT NOT NULL REFERENCES core.budget_items(id) ON DELETE CASCADE,
  period_id BIGINT NOT NULL REFERENCES core.work_program_periods(id) ON DELETE CASCADE,
  start_pct NUMERIC(6,2) NOT NULL DEFAULT 0,
  end_pct NUMERIC(6,2) NOT NULL DEFAULT 0,
  UNIQUE (program_id, budget_item_id, period_id)
);

CREATE INDEX idx_core_wp_concept_slots_program ON core.work_program_concept_slots(program_id);
CREATE INDEX idx_core_wp_concept_slots_item ON core.work_program_concept_slots(budget_item_id);

--changeset panel:core-029d-work-program-partida-amounts 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='work_program_partida_amounts'
CREATE TABLE core.work_program_partida_amounts (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  program_id BIGINT NOT NULL REFERENCES core.work_programs(id) ON DELETE CASCADE,
  budget_chapter_id BIGINT NOT NULL REFERENCES core.budget_chapters(id) ON DELETE CASCADE,
  period_id BIGINT NOT NULL REFERENCES core.work_program_periods(id) ON DELETE CASCADE,
  amount NUMERIC(14,2) NOT NULL DEFAULT 0,
  UNIQUE (program_id, budget_chapter_id, period_id)
);

CREATE INDEX idx_core_wp_partida_amounts_program ON core.work_program_partida_amounts(program_id);
CREATE INDEX idx_core_wp_partida_amounts_chapter ON core.work_program_partida_amounts(budget_chapter_id);

--changeset panel:core-029e-work-program-progress 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='work_program_progress'
CREATE TABLE core.work_program_progress (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  program_id BIGINT NOT NULL REFERENCES core.work_programs(id) ON DELETE CASCADE,
  budget_item_id BIGINT NOT NULL REFERENCES core.budget_items(id) ON DELETE CASCADE,
  period_id BIGINT NOT NULL REFERENCES core.work_program_periods(id) ON DELETE CASCADE,
  pct_complete NUMERIC(6,2) NOT NULL DEFAULT 0 CHECK (pct_complete >= 0 AND pct_complete <= 100),
  UNIQUE (program_id, budget_item_id, period_id)
);

CREATE INDEX idx_core_wp_progress_program ON core.work_program_progress(program_id);