CREATE DATABASE IF NOT EXISTS job_scraper_db;
USE job_scraper_db;

CREATE TABLE IF NOT EXISTS jobs (
    job_id INT AUTO_INCREMENT PRIMARY KEY,
    title VARCHAR(255) NOT NULL,
    company VARCHAR(255),
    location VARCHAR(255),
    posted_date_raw VARCHAR(100),
    job_link VARCHAR(512) UNIQUE NOT NULL,
    is_actively_hiring BOOLEAN DEFAULT FALSE,
    description TEXT DEFAULT NULL,
    match_score INT DEFAULT NULL,
    match_breakdown JSON DEFAULT NULL,
    matched_skills JSON DEFAULT NULL,
    missing_skills JSON DEFAULT NULL,
    verdict VARCHAR(50) DEFAULT NULL,
    detail_fetched_at DATETIME DEFAULT NULL,
    scored_at DATETIME DEFAULT NULL,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    INDEX idx_match_score (match_score),
    INDEX idx_verdict (verdict)
);

CREATE TABLE IF NOT EXISTS users (
    user_id INT AUTO_INCREMENT PRIMARY KEY,
    telegram_token VARCHAR(255) NOT NULL,
    telegram_chat_id VARCHAR(50) NOT NULL,
    min_match_score INT DEFAULT 70,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS alert_logs (
    alert_id INT AUTO_INCREMENT PRIMARY KEY,
    user_id INT NOT NULL,
    job_id INT NOT NULL,
    alerted_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    UNIQUE KEY unique_user_job (user_id, job_id),
    FOREIGN KEY (user_id) REFERENCES users(user_id),
    FOREIGN KEY (job_id) REFERENCES jobs(job_id)
);

-- Migration: add columns required by daemon.py to an existing jobs table
ALTER TABLE jobs
    ADD COLUMN IF NOT EXISTS description TEXT DEFAULT NULL,
    ADD COLUMN IF NOT EXISTS match_score INT DEFAULT NULL,
    ADD COLUMN IF NOT EXISTS match_breakdown JSON DEFAULT NULL,
    ADD COLUMN IF NOT EXISTS matched_skills JSON DEFAULT NULL,
    ADD COLUMN IF NOT EXISTS missing_skills JSON DEFAULT NULL,
    ADD COLUMN IF NOT EXISTS verdict VARCHAR(50) DEFAULT NULL,
    ADD COLUMN IF NOT EXISTS detail_fetched_at DATETIME DEFAULT NULL,
    ADD COLUMN IF NOT EXISTS scored_at DATETIME DEFAULT NULL;

ALTER TABLE jobs
    ADD INDEX IF NOT EXISTS idx_match_score (match_score),
    ADD INDEX IF NOT EXISTS idx_verdict (verdict);