package attach

import (
	"github.com/go-gormigrate/gormigrate/v2"
	"gorm.io/gorm"
)

// Migrations creates Winter's system_files table. Folded from
// modules/system/database/migrations/2013_10_01_000002_Db_System_Files.php
// and 2025_04_10_000031_Db_Add_System_Files_Metadata.php.
var Migrations = []*gormigrate.Migration{
	{
		ID: "202609180001_create_system_files",
		Migrate: func(tx *gorm.DB) error {
			stmts := []string{
				`CREATE TABLE system_files (
	id SERIAL PRIMARY KEY,
	disk_name TEXT NOT NULL,
	file_name TEXT NOT NULL,
	file_size INTEGER NOT NULL,
	content_type TEXT NOT NULL,
	title TEXT,
	description TEXT,
	field TEXT,
	attachment_id TEXT,
	attachment_type TEXT,
	is_public BOOLEAN NOT NULL DEFAULT TRUE,
	sort_order INTEGER,
	metadata TEXT,
	created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
	updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
)`,
				`CREATE INDEX system_files_field_index ON system_files (field)`,
				`CREATE INDEX system_files_attachment_id_index ON system_files (attachment_id)`,
				`CREATE INDEX system_files_attachment_type_index ON system_files (attachment_type)`,
				`CREATE INDEX system_files_attachment_lookup_index ON system_files (attachment_type, attachment_id, field)`,
			}
			for _, stmt := range stmts {
				if err := tx.Exec(stmt).Error; err != nil {
					return err
				}
			}
			return nil
		},
		Rollback: func(tx *gorm.DB) error {
			return tx.Exec("DROP TABLE IF EXISTS system_files").Error
		},
	},
}