BEGIN;

CREATE TABLE IF NOT EXISTS subscription_account (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    name VARCHAR(100) NOT NULL UNIQUE,
    upstream_key VARCHAR(255) NOT NULL UNIQUE,
    filter_high_multiplier INTEGER NOT NULL DEFAULT 1,
    enabled INTEGER NOT NULL DEFAULT 1,
    last_success_at DATETIME,
    last_error TEXT,
    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
);

INSERT INTO subscription_account (name, upstream_key, filter_high_multiplier, enabled)
SELECT '旧共享订阅', :legacy_key, 1, 1
WHERE NOT EXISTS (SELECT 1 FROM subscription_account WHERE name = '旧共享订阅')
  AND NOT EXISTS (SELECT 1 FROM subscription_account WHERE upstream_key = :legacy_key);

CREATE TABLE sub_bind_new (
    key VARCHAR(255) NOT NULL PRIMARY KEY,
    user VARCHAR(255) NOT NULL UNIQUE,
    subscription_account_id INTEGER NOT NULL,
    FOREIGN KEY (subscription_account_id) REFERENCES subscription_account(id)
);

INSERT INTO sub_bind_new (key, user, subscription_account_id)
SELECT sb.key, sb.user, sa.id
FROM sub_bind sb
JOIN (SELECT id FROM subscription_account
      WHERE name = '旧共享订阅' OR upstream_key = :legacy_key
      ORDER BY id LIMIT 1) sa;

DROP TABLE sub_bind;
ALTER TABLE sub_bind_new RENAME TO sub_bind;
CREATE INDEX idx_sub_bind_account ON sub_bind(subscription_account_id);

COMMIT;