CREATE TABLE IF NOT EXISTS user_follows (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  user_id BIGINT UNSIGNED NOT NULL,
  target_user_id BIGINT UNSIGNED NOT NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_follow_pair (user_id, target_user_id),
  KEY idx_follow_target (target_user_id, created_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS user_likes (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  user_id BIGINT UNSIGNED NOT NULL,
  target_user_id BIGINT UNSIGNED NOT NULL,
  source VARCHAR(30) NOT NULL DEFAULT 'discover',
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_like_pair (user_id, target_user_id),
  KEY idx_like_target (target_user_id, created_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS user_matches (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  user1_id BIGINT UNSIGNED NOT NULL,
  user2_id BIGINT UNSIGNED NOT NULL,
  matched_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  status TINYINT UNSIGNED NOT NULL DEFAULT 1,
  PRIMARY KEY (id),
  UNIQUE KEY uk_match_pair (user1_id, user2_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS user_blocks (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  user_id BIGINT UNSIGNED NOT NULL,
  blocked_user_id BIGINT UNSIGNED NOT NULL,
  reason VARCHAR(255) NOT NULL DEFAULT '',
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_block_pair (user_id, blocked_user_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS profile_visits (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  viewer_user_id BIGINT UNSIGNED NOT NULL,
  target_user_id BIGINT UNSIGNED NOT NULL,
  source VARCHAR(30) NOT NULL DEFAULT 'profile',
  visited_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  KEY idx_visit_target_time (target_user_id, visited_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS user_location_states (
  user_id BIGINT UNSIGNED NOT NULL,
  city_code VARCHAR(20) NOT NULL,
  location_cell VARCHAR(32) NOT NULL DEFAULT '',
  latitude DECIMAL(10,7) NULL,
  longitude DECIMAL(10,7) NULL,
  last_location_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  source VARCHAR(20) NOT NULL DEFAULT 'gps',
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (user_id),
  KEY idx_location_city_time (city_code, last_location_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;