-- v1.1.0:账号化重构 + 三级 Webhook(邮箱 -> 域名 -> 全局)
-- 节点在 UI/API 层更名「账号」(表名保持 nodes,兼容既有 Node 内部协议)

-- 域名级 Webhook 与 Email Workers 配置状态
ALTER TABLE domains ADD COLUMN webhook_url TEXT;
ALTER TABLE domains ADD COLUMN webhook_headers TEXT; -- JSON: 自定义请求头
ALTER TABLE domains ADD COLUMN webhook_key_enc TEXT; -- webhook key AES-GCM 密文
ALTER TABLE domains ADD COLUMN setup_error TEXT;     -- 「设置 Email Workers」失败原因

-- 邮箱级 Webhook 配置
ALTER TABLE mailboxes ADD COLUMN webhook_url TEXT;
ALTER TABLE mailboxes ADD COLUMN webhook_headers TEXT;
ALTER TABLE mailboxes ADD COLUMN webhook_key_enc TEXT;

-- Webhook 独立实体移除:配置落在 邮箱/域名/全局 三级,投递行携带解析后的目标配置
DROP TABLE IF EXISTS webhook_deliveries;
DROP TABLE IF EXISTS webhooks;
CREATE TABLE IF NOT EXISTS webhook_deliveries (
  id TEXT PRIMARY KEY,
  email_id TEXT NOT NULL,
  target_type TEXT NOT NULL, -- mailbox | domain | global
  url TEXT NOT NULL,
  headers TEXT,              -- JSON: 自定义请求头
  key_enc TEXT,              -- webhook key 密文(用于 HMAC 签名与 Authorization: Bearer)
  status TEXT NOT NULL DEFAULT 'pending', -- pending | success | failed | exhausted
  attempt_count INTEGER NOT NULL DEFAULT 0,
  next_retry_at TEXT,
  last_error TEXT,
  delivered_at TEXT,
  created_at TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_deliveries_retry ON webhook_deliveries(status, next_retry_at);
CREATE INDEX IF NOT EXISTS idx_deliveries_email ON webhook_deliveries(email_id);