-- SQLite 마일리지 데이터베이스 스키마
-- pharmacy-pos-qr-system/backend/db/mileage_schema.sql

-- 1. 사용자 테이블 (카카오 로그인 계정)
CREATE TABLE IF NOT EXISTS users (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    nickname VARCHAR(100),
    profile_image_url VARCHAR(500),
    email VARCHAR(200),
    is_email_verified BOOLEAN DEFAULT FALSE,
    phone VARCHAR(20),
    birthday VARCHAR(10),
    mileage_balance INTEGER DEFAULT 0,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

-- 2. 외부 로그인 매핑 테이블
CREATE TABLE IF NOT EXISTS customer_identities (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id INTEGER NOT NULL,
    provider VARCHAR(20) NOT NULL,
    provider_user_id VARCHAR(100) NOT NULL,
    provider_data TEXT,
    access_token TEXT,
    refresh_token TEXT,
    token_expires_at DATETIME,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (user_id) REFERENCES users(id),
    UNIQUE(provider, provider_user_id)
);

CREATE INDEX IF NOT EXISTS idx_identities_user ON customer_identities(user_id);

-- 3. 영수증 QR 토큰 테이블
CREATE TABLE IF NOT EXISTS claim_tokens (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    transaction_id VARCHAR(20) NOT NULL,
    pharmacy_id VARCHAR(20),
    token_hash VARCHAR(64) NOT NULL,
    total_amount INTEGER NOT NULL,
    claimable_points INTEGER NOT NULL,
    expires_at DATETIME NOT NULL,
    claimed_at DATETIME,
    claimed_by_user_id INTEGER,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (claimed_by_user_id) REFERENCES users(id),
    UNIQUE(transaction_id),
    UNIQUE(token_hash)
);

CREATE INDEX IF NOT EXISTS idx_tokens_hash ON claim_tokens(token_hash);
CREATE INDEX IF NOT EXISTS idx_tokens_expires ON claim_tokens(expires_at);

-- 4. 마일리지 원장 테이블
CREATE TABLE IF NOT EXISTS mileage_ledger (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id INTEGER NOT NULL,
    transaction_id VARCHAR(20),
    points INTEGER NOT NULL,
    balance_after INTEGER NOT NULL,
    reason VARCHAR(50) NOT NULL,
    description TEXT,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (user_id) REFERENCES users(id),
    UNIQUE(transaction_id)
);

CREATE INDEX IF NOT EXISTS idx_ledger_user ON mileage_ledger(user_id);
CREATE INDEX IF NOT EXISTS idx_ledger_transaction ON mileage_ledger(transaction_id);

-- 5. POS 고객 연결 테이블
CREATE TABLE IF NOT EXISTS pos_customer_links (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id INTEGER NOT NULL,
    pharmacy_id VARCHAR(20),
    cuscode VARCHAR(10),
    customer_name VARCHAR(50),
    linked_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    is_active BOOLEAN DEFAULT TRUE,
    FOREIGN KEY (user_id) REFERENCES users(id),
    UNIQUE(user_id, pharmacy_id)
);

CREATE INDEX IF NOT EXISTS idx_links_cuscode ON pos_customer_links(cuscode);

-- 6. 알림톡 발송 로그 테이블
CREATE TABLE IF NOT EXISTS alimtalk_logs (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    template_code VARCHAR(50) NOT NULL,
    recipient_no VARCHAR(20) NOT NULL,
    user_id INTEGER,
    trigger_source VARCHAR(20) NOT NULL,       -- 'kiosk', 'admin', 'manual' 등
    template_params TEXT,                       -- JSON 문자열
    success BOOLEAN NOT NULL,
    result_message TEXT,
    transaction_id VARCHAR(20),
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (user_id) REFERENCES users(id)
);

CREATE INDEX IF NOT EXISTS idx_alimtalk_created ON alimtalk_logs(created_at);
CREATE INDEX IF NOT EXISTS idx_alimtalk_recipient ON alimtalk_logs(recipient_no);

-- 7. AI 추천 테이블
CREATE TABLE IF NOT EXISTS ai_recommendations (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id INTEGER NOT NULL,
    transaction_id VARCHAR(20),
    recommended_product TEXT NOT NULL,
    recommendation_message TEXT NOT NULL,
    recommendation_reason TEXT,
    trigger_products TEXT,
    ai_raw_response TEXT,
    status VARCHAR(20) DEFAULT 'active',
    displayed_count INTEGER DEFAULT 0,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    expires_at DATETIME,
    displayed_at DATETIME,
    dismissed_at DATETIME,
    FOREIGN KEY (user_id) REFERENCES users(id)
);

CREATE INDEX IF NOT EXISTS idx_rec_user_status ON ai_recommendations(user_id, status);
CREATE INDEX IF NOT EXISTS idx_rec_expires ON ai_recommendations(expires_at);

-- 8. 반려동물 테이블
CREATE TABLE IF NOT EXISTS pets (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id INTEGER NOT NULL,
    name VARCHAR(50) NOT NULL,                  -- 이름 (예: 뽀삐, 나비)
    species VARCHAR(20) NOT NULL,               -- 종류: dog, cat, other
    breed VARCHAR(50),                          -- 품종 (말티즈, 페르시안 등)
    gender VARCHAR(10),                         -- male, female, unknown
    birth_date DATE,                            -- 생년월일 (나중에 사용)
    age_months INTEGER,                         -- 월령 (나중에 사용)
    weight DECIMAL(5,2),                        -- 체중 kg (나중에 사용)
    photo_url TEXT,                             -- 사진 URL
    notes TEXT,                                 -- 특이사항/메모
    is_active BOOLEAN DEFAULT TRUE,             -- 활성 상태
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (user_id) REFERENCES users(id)
);

CREATE INDEX IF NOT EXISTS idx_pets_user ON pets(user_id);
CREATE INDEX IF NOT EXISTS idx_pets_species ON pets(species);

-- 9. OTC 용법 라벨 테이블 (바코드 기준 오버라이드 데이터)
CREATE TABLE IF NOT EXISTS otc_label_presets (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    barcode VARCHAR(20) NOT NULL UNIQUE,        -- 바코드 (PK 역할)
    drug_code VARCHAR(20),                      -- MSSQL DrugCode (참조용)
    display_name VARCHAR(100),                  -- 표시 이름 (오버라이드, NULL이면 MSSQL 이름 사용)
    effect VARCHAR(100),                        -- 효능 (예: "치통, 두통")
    dosage_instruction TEXT,                    -- 용법 (예: "1일 3회, 1회 1정, 식후 30분")
    usage_tip TEXT,                             -- 부가 설명 (예: "[통증 시에만 복용]")
    use_wide_format BOOLEAN DEFAULT TRUE,       -- 와이드 포맷 사용 여부
    print_count INTEGER DEFAULT 0,              -- 인쇄 횟수 (통계용)
    last_printed_at DATETIME,                   -- 마지막 인쇄 시간
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

CREATE INDEX IF NOT EXISTS idx_otc_label_barcode ON otc_label_presets(barcode);
CREATE INDEX IF NOT EXISTS idx_otc_label_drug_code ON otc_label_presets(drug_code);