package database

import (
	"path/filepath"
	"strings"
	"testing"
)

func TestBuildDialector(t *testing.T) {
	tests := []struct {
		name     string
		driver   string
		wantName string
		wantErr  string
	}{
		{name: "默认空驱动走 sqlite", driver: "", wantName: "sqlite"},
		{name: "显式 sqlite", driver: "sqlite", wantName: "sqlite"},
		{name: "mysql", driver: "mysql", wantName: "mysql"},
		{name: "postgres", driver: "postgres", wantName: "postgres"},
		{name: "未知驱动报错", driver: "oracle", wantErr: "unsupported DB_DRIVER"},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			d, err := buildDialector(tt.driver, "user:pass@tcp(127.0.0.1)/db", "test.db")
			if tt.wantErr != "" {
				if err == nil || !strings.Contains(err.Error(), tt.wantErr) {
					t.Fatalf("err = %v, want contains %q", err, tt.wantErr)
				}
				return
			}
			if err != nil {
				t.Fatalf("buildDialector: %v", err)
			}
			if got := d.Name(); got != tt.wantName {
				t.Fatalf("dialector name = %q, want %q", got, tt.wantName)
			}
		})
	}
}

func TestOpenSQLiteMigrates(t *testing.T) {
	path := filepath.Join(t.TempDir(), "test.db")
	db, err := Open("sqlite", "", path)
	if err != nil {
		t.Fatalf("Open sqlite: %v", err)
	}
	for _, table := range []string{"users", "oci_configs", "ai_channels", "log_events"} {
		if !db.Migrator().HasTable(table) {
			t.Fatalf("table %s not migrated", table)
		}
	}
}