CREATE TABLE IF NOT EXISTS webhook_subscriptions (
    id SERIAL PRIMARY KEY,
    account_id INTEGER NOT NULL,
    inbox_id INTEGER,
    name VARCHAR(255),
    url VARCHAR(2048) NOT NULL,
    events JSONB NOT NULL DEFAULT '[]',
    secret VARCHAR(128) NOT NULL,
    webhook_type INTEGER DEFAULT 0,
    active BOOLEAN DEFAULT TRUE,
    verified_at TIMESTAMP WITH TIME ZONE,
    last_delivery_status VARCHAR(50),
    last_delivery_at TIMESTAMP WITH TIME ZONE,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    deleted_at TIMESTAMP WITH TIME ZONE
);

ALTER TABLE webhook_subscriptions
    ADD COLUMN IF NOT EXISTS inbox_id INTEGER,
    ADD COLUMN IF NOT EXISTS name VARCHAR(255),
    ADD COLUMN IF NOT EXISTS webhook_type INTEGER DEFAULT 0;

UPDATE webhook_subscriptions SET active = TRUE WHERE active IS NULL;

CREATE INDEX IF NOT EXISTS idx_webhook_subscriptions_account_id ON webhook_subscriptions(account_id) WHERE deleted_at IS NULL;
CREATE INDEX IF NOT EXISTS idx_webhook_subscriptions_inbox_id ON webhook_subscriptions(inbox_id) WHERE deleted_at IS NULL;
CREATE UNIQUE INDEX IF NOT EXISTS idx_webhook_subscriptions_account_url ON webhook_subscriptions(account_id, url) WHERE deleted_at IS NULL AND active = TRUE;