-- =====================================================================
-- dispatch_db 초기화 스크립트 (PostgreSQL) — 말레이시아 TikTok 출고관리
-- =====================================================================
-- 멱등(idempotent): 여러 번 실행해도 안전. 기존 데이터를 삭제하지 않는다.
--
-- ⚠️ 실행 전 사용자 승인 + 백업 확인 필수. DROP/TRUNCATE 없음.
--
-- 실행 방법 (운영 PostgreSQL 컨테이너명: postgres-db):
--
--   1) DB / 역할 / 스키마 생성 (superuser 로 1회)
--      read -s -p "dispatch_app password: " APP_PWD; echo
--      docker exec -i postgres-db psql -U postgres \
--          -v app_password="$APP_PWD" \
--          < scripts/sql/dispatch_db_init.sql
--
--   2) main-app .env 에 연결 정보 등록
--      DISPATCH_DB_URL=postgresql://dispatch_app:<APP_PWD>@postgres-db:5432/dispatch_db
--
--   3) main-app 재기동
--      cd /opt/www/main && docker compose up -d --build web
--
-- 주의:
--   - 기존 DB 가 있으면 DROP 하지 않는다(CREATE DATABASE 는 미존재 시에만).
--   - 비밀번호는 절대 Git 에 커밋하지 않는다. psql -v 로만 전달.
--   - 받는 사람 정보(이름/전화/주소)는 출고 작업 카드 표시 + 출고 엑셀 생성을
--     위해 박스 단위로 보관한다(개인정보 — 접근/보관 정책 검토 대상).
--   - 작업 기준 키: order_id / package_id / tracking_id / seller_sku / quantity.
-- =====================================================================

\set ON_ERROR_STOP on

-- DB 가 없을 때만 생성
SELECT 'CREATE DATABASE dispatch_db ENCODING ''UTF8'' TEMPLATE template0'
WHERE NOT EXISTS (SELECT 1 FROM pg_database WHERE datname = 'dispatch_db')
\gexec

-- 앱 전용 로그인 역할
SELECT 'CREATE ROLE dispatch_app LOGIN PASSWORD ' || quote_literal(:'app_password')
WHERE NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'dispatch_app')
\gexec

-- 항상 최신 비밀번호로 동기화
SELECT 'ALTER ROLE dispatch_app WITH LOGIN PASSWORD ' || quote_literal(:'app_password')
\gexec

GRANT CONNECT ON DATABASE dispatch_db TO dispatch_app;

-- dispatch_db 컨텍스트로 전환
\connect dispatch_db

-- ── updated_at 자동 갱신 트리거 함수 (멱등: CREATE OR REPLACE) ──
CREATE OR REPLACE FUNCTION dispatch_set_updated_at() RETURNS trigger AS $$
BEGIN
  NEW.updated_at := now();
  RETURN NEW;
END;
$$ LANGUAGE plpgsql;

-- ════════════════════════════════════════════════════════════
-- 1) 출고 배치 (하루 1회~여러 회 업로드 단위)
--    같은 날짜/플랫폼이라도 batch_name 으로 구분해 여러 배치 생성 가능.
-- ════════════════════════════════════════════════════════════
CREATE TABLE IF NOT EXISTS dispatch_batches (
    id                BIGSERIAL   PRIMARY KEY,
    platform          TEXT        NOT NULL DEFAULT 'TikTok',
    dispatch_date     DATE        NOT NULL,
    batch_name        TEXT        NOT NULL DEFAULT '',
    picking_pdf_path  TEXT        NOT NULL DEFAULT '',
    label_pdf_path    TEXT        NOT NULL DEFAULT '',
    order_export_path TEXT        NOT NULL DEFAULT '',
    created_at        TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at        TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX IF NOT EXISTS idx_dispatch_batches_date ON dispatch_batches (dispatch_date DESC);

DROP TRIGGER IF EXISTS trg_dispatch_batches_updated ON dispatch_batches;
CREATE TRIGGER trg_dispatch_batches_updated
  BEFORE UPDATE ON dispatch_batches
  FOR EACH ROW EXECUTE FUNCTION dispatch_set_updated_at();

-- ════════════════════════════════════════════════════════════
-- 2) 출고 박스 (1박스 = 1행 = 1작업카드)
--    묶음 기준: package_id > tracking_id > order_id (파서가 결정).
--    받는 사람(recipient_*) 정보 보관 — 작업 카드 표시 + 출고 엑셀 생성용.
--    seq 는 배치 내 박스 표시 순번(No).
-- ════════════════════════════════════════════════════════════
CREATE TABLE IF NOT EXISTS dispatch_parcels (
    id                 BIGSERIAL   PRIMARY KEY,
    batch_id           BIGINT      NOT NULL REFERENCES dispatch_batches(id) ON DELETE CASCADE,
    seq                INTEGER     NOT NULL DEFAULT 0,
    order_id           TEXT        NOT NULL DEFAULT '',
    package_id         TEXT        NOT NULL DEFAULT '',
    tracking_id        TEXT        NOT NULL DEFAULT '',
    shipping_provider  TEXT        NOT NULL DEFAULT '',
    recipient_name     TEXT        NOT NULL DEFAULT '',
    recipient_phone    TEXT        NOT NULL DEFAULT '',
    recipient_address  TEXT        NOT NULL DEFAULT '',
    product_ready      BOOLEAN     NOT NULL DEFAULT FALSE,
    packed             BOOLEAN     NOT NULL DEFAULT FALSE,
    label_attached     BOOLEAN     NOT NULL DEFAULT FALSE,
    handed_to_kagayaku BOOLEAN     NOT NULL DEFAULT FALSE,
    courier_scanned    BOOLEAN     NOT NULL DEFAULT FALSE,
    memo               TEXT        NOT NULL DEFAULT '',
    created_at         TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at         TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX IF NOT EXISTS idx_dispatch_parcels_batch    ON dispatch_parcels (batch_id, seq);
CREATE INDEX IF NOT EXISTS idx_dispatch_parcels_order    ON dispatch_parcels (order_id);
CREATE INDEX IF NOT EXISTS idx_dispatch_parcels_tracking ON dispatch_parcels (tracking_id);
CREATE INDEX IF NOT EXISTS idx_dispatch_parcels_package  ON dispatch_parcels (package_id);

DROP TRIGGER IF EXISTS trg_dispatch_parcels_updated ON dispatch_parcels;
CREATE TRIGGER trg_dispatch_parcels_updated
  BEFORE UPDATE ON dispatch_parcels
  FOR EACH ROW EXECUTE FUNCTION dispatch_set_updated_at();

-- ════════════════════════════════════════════════════════════
-- 3) 박스 안 상품 (1박스 N상품, 같은 SKU 는 수량 합산되어 1행)
-- ════════════════════════════════════════════════════════════
CREATE TABLE IF NOT EXISTS dispatch_items (
    id           BIGSERIAL PRIMARY KEY,
    parcel_id    BIGINT    NOT NULL REFERENCES dispatch_parcels(id) ON DELETE CASCADE,
    seller_sku   TEXT      NOT NULL DEFAULT '',
    product_name TEXT      NOT NULL DEFAULT '',
    quantity     INTEGER   NOT NULL DEFAULT 1
);
CREATE INDEX IF NOT EXISTS idx_dispatch_items_parcel ON dispatch_items (parcel_id);
CREATE INDEX IF NOT EXISTS idx_dispatch_items_sku    ON dispatch_items (seller_sku);

-- ════════════════════════════════════════════════════════════
-- 4) 작업 상태 변경 로그 (감사/추적용)
-- ════════════════════════════════════════════════════════════
CREATE TABLE IF NOT EXISTS dispatch_logs (
    id          BIGSERIAL   PRIMARY KEY,
    parcel_id   BIGINT      NOT NULL REFERENCES dispatch_parcels(id) ON DELETE CASCADE,
    action      TEXT        NOT NULL DEFAULT '',
    old_value   TEXT        NOT NULL DEFAULT '',
    new_value   TEXT        NOT NULL DEFAULT '',
    worker_name TEXT        NOT NULL DEFAULT '',
    created_at  TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX IF NOT EXISTS idx_dispatch_logs_parcel ON dispatch_logs (parcel_id);

-- ════════════════════════════════════════════════════════════
-- 5) 말레이시아 재고 차감 1회성 기록 (날짜 단위 멱등 가드)
--    그날 출고를 말레이시아 재고관리(OUT)로 1회만 반영. 존재 시 재차감 차단.
-- ════════════════════════════════════════════════════════════
CREATE TABLE IF NOT EXISTS dispatch_stock_deductions (
    dispatch_date  DATE        PRIMARY KEY,
    warehouse_code TEXT        NOT NULL DEFAULT '',
    single_lines   INTEGER     NOT NULL DEFAULT 0,
    combo_lines    INTEGER     NOT NULL DEFAULT 0,
    worker_name    TEXT        NOT NULL DEFAULT '',
    deducted_at    TIMESTAMPTZ NOT NULL DEFAULT now()
);

-- ════════════════════════════════════════════════════════════
-- 6) 권한 (dispatch_app: CRUD only)
-- ════════════════════════════════════════════════════════════
GRANT USAGE ON SCHEMA public TO dispatch_app;
GRANT SELECT, INSERT, UPDATE, DELETE ON
  dispatch_batches, dispatch_parcels, dispatch_items, dispatch_logs,
  dispatch_stock_deductions
  TO dispatch_app;
GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO dispatch_app;
ALTER DEFAULT PRIVILEGES IN SCHEMA public
  GRANT SELECT, INSERT, UPDATE, DELETE ON TABLES TO dispatch_app;
ALTER DEFAULT PRIVILEGES IN SCHEMA public
  GRANT USAGE, SELECT ON SEQUENCES TO dispatch_app;

SELECT 'dispatch_db ready' AS status;