package server

import (
	"context"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestInitDatabase(t *testing.T) {
	tests := []struct {
		name        string
		driver      string
		dsn         string
		wantErr     bool
		errContains string
	}{
		{
			name:   "success with sqlite3",
			driver: "sqlite3",
			dsn:    "file:ent?mode=memory&cache=shared&_fk=1",
		},
		{
			name:        "invalid driver",
			driver:      "invalid_driver",
			dsn:         "file:ent?mode=memory",
			wantErr:     true,
			errContains: "unsupported driver",
		},
		{
			name:        "invalid dsn",
			driver:      "sqlite3",
			dsn:         "file::memory:?not_exist_option=1",  // 使用内存数据库但带有无效选项
			wantErr:     true,
			errContains: "foreign_keys pragma is off",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			ctx := context.Background()
			client, err := InitDatabase(ctx, tt.driver, tt.dsn)

			if tt.wantErr {
				assert.Error(t, err)
				if tt.errContains != "" {
					assert.Contains(t, err.Error(), tt.errContains)
				}
				assert.Nil(t, client)
			} else {
				require.NoError(t, err)
				assert.NotNil(t, client)

				// 测试数据库连接是否正常工作
				err = client.Schema.Create(ctx)
				assert.NoError(t, err)

				// 清理
				client.Close()
			}
		})
	}
}