-- Migration: Add 'stopped' status to server_orders table
-- Date: 2026-01-29
-- Description: SQLite does not support ALTER TABLE to modify CHECK constraints,
--              so we need to recreate the table with the new constraint.

-- Step 1: Create temporary table with new CHECK constraint
CREATE TABLE server_orders_new (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  spec_id INTEGER NOT NULL,
  status TEXT NOT NULL DEFAULT 'pending' CHECK(status IN ('pending', 'provisioning', 'active', 'stopped', 'failed', 'cancelled', 'terminated')),
  region TEXT NOT NULL,
  provider_instance_id TEXT,
  ip_address TEXT,
  root_password TEXT,
  price_paid INTEGER NOT NULL,
  error_message TEXT,
  provisioned_at DATETIME,
  terminated_at DATETIME,
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
  label TEXT,
  image TEXT,
  billing_type TEXT DEFAULT 'monthly',
  expires_at DATETIME,
  telegram_user_id TEXT,
  provider TEXT DEFAULT 'anvil',
  idempotency_key TEXT,
  FOREIGN KEY (user_id) REFERENCES users(id)
);

-- Step 2: Copy existing data
INSERT INTO server_orders_new (
  id, user_id, spec_id, status, region, provider_instance_id, ip_address,
  root_password, price_paid, error_message, provisioned_at, terminated_at,
  created_at, updated_at, label, image, billing_type, expires_at,
  telegram_user_id, provider, idempotency_key
)
SELECT
  id, user_id, spec_id, status, region, provider_instance_id, ip_address,
  root_password, price_paid, error_message, provisioned_at, terminated_at,
  created_at, updated_at, label, image, billing_type, expires_at,
  telegram_user_id, provider, idempotency_key
FROM server_orders;

-- Step 3: Drop old table
DROP TABLE server_orders;

-- Step 4: Rename new table
ALTER TABLE server_orders_new RENAME TO server_orders;

-- Step 5: Recreate indexes
CREATE INDEX idx_server_orders_user ON server_orders(user_id);

CREATE INDEX idx_server_orders_status ON server_orders(status, created_at DESC);

CREATE UNIQUE INDEX idx_server_orders_idempotency_unique
  ON server_orders(idempotency_key)
  WHERE idempotency_key IS NOT NULL;

-- Verification query (comment out for actual migration)
-- SELECT COUNT(*) as total_orders, COUNT(DISTINCT status) as status_count FROM server_orders;