// Package infra gère l'infrastructure (serveurs, containers, nginx).
package infra

import "fmt"

// migrations contient les migrations SQL à exécuter dans l'ordre.
var migrations = []string{
	// Table servers
	`CREATE TABLE IF NOT EXISTS servers (
		id INTEGER PRIMARY KEY AUTOINCREMENT,
		name TEXT NOT NULL UNIQUE,
		host TEXT NOT NULL,
		vpn_ip TEXT,
		ssh_port INTEGER NOT NULL DEFAULT 22,
		ssh_user TEXT NOT NULL DEFAULT 'root',
		ssh_key_file TEXT NOT NULL,
		has_incus INTEGER NOT NULL DEFAULT 0,
		has_nginx INTEGER NOT NULL DEFAULT 0,
		status TEXT NOT NULL DEFAULT 'unknown',
		created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
		updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
	)`,

	// Table containers
	`CREATE TABLE IF NOT EXISTS containers (
		id INTEGER PRIMARY KEY AUTOINCREMENT,
		server_id INTEGER NOT NULL,
		name TEXT NOT NULL,
		incus_name TEXT NOT NULL,
		ip TEXT,
		vpn_ip TEXT,
		image TEXT,
		status TEXT NOT NULL DEFAULT 'unknown',
		created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
		updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
		FOREIGN KEY (server_id) REFERENCES servers(id) ON DELETE CASCADE,
		UNIQUE(server_id, incus_name)
	)`,

	// Table nginx_configs
	`CREATE TABLE IF NOT EXISTS nginx_configs (
		id INTEGER PRIMARY KEY AUTOINCREMENT,
		server_id INTEGER NOT NULL,
		domain TEXT NOT NULL,
		type TEXT NOT NULL DEFAULT 'proxy',
		template TEXT,
		upstream TEXT,
		ssl_enabled INTEGER NOT NULL DEFAULT 1,
		config_content TEXT,
		status TEXT NOT NULL DEFAULT 'inactive',
		created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
		updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
		FOREIGN KEY (server_id) REFERENCES servers(id) ON DELETE CASCADE,
		UNIQUE(server_id, domain)
	)`,

	// Table app_bindings
	`CREATE TABLE IF NOT EXISTS app_bindings (
		id INTEGER PRIMARY KEY AUTOINCREMENT,
		app_id TEXT NOT NULL,
		container_id INTEGER,
		nginx_config_id INTEGER,
		server_id INTEGER,
		type TEXT NOT NULL,
		created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
		FOREIGN KEY (container_id) REFERENCES containers(id) ON DELETE SET NULL,
		FOREIGN KEY (nginx_config_id) REFERENCES nginx_configs(id) ON DELETE SET NULL,
		FOREIGN KEY (server_id) REFERENCES servers(id) ON DELETE SET NULL
	)`,

	// Index pour accélérer les requêtes
	`CREATE INDEX IF NOT EXISTS idx_containers_server ON containers(server_id)`,
	`CREATE INDEX IF NOT EXISTS idx_nginx_configs_server ON nginx_configs(server_id)`,
	`CREATE INDEX IF NOT EXISTS idx_nginx_configs_domain ON nginx_configs(domain)`,
	`CREATE INDEX IF NOT EXISTS idx_app_bindings_app ON app_bindings(app_id)`,

	// Table migrations pour tracking des versions
	`CREATE TABLE IF NOT EXISTS schema_migrations (
		version INTEGER PRIMARY KEY,
		applied_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
	)`,
}

// Migrate exécute toutes les migrations.
func (db *DB) Migrate() error {
	for i, migration := range migrations {
		if _, err := db.Exec(migration); err != nil {
			return fmt.Errorf("migration %d failed: %w", i+1, err)
		}
	}
	return nil
}