package service

import (
	"errors"
	"strings"
	"testing"

	"github.com/freefire/jiang13-bbs/model"
	"github.com/glebarez/sqlite"
	"gorm.io/gorm"
)

func newSitePageTestService(t *testing.T) *SitePageService {
	t.Helper()
	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
	if err != nil {
		t.Fatalf("open sqlite: %v", err)
	}
	if err := db.AutoMigrate(&model.SitePage{}); err != nil {
		t.Fatalf("migrate: %v", err)
	}
	return NewSitePageService(db)
}

func sitePageInput(slug, title string) *SitePageInput {
	return &SitePageInput{Slug: slug, Title: title, Content: "正文内容"}
}

func TestSitePageSlugReuseAfterSoftDelete(t *testing.T) {
	s := newSitePageTestService(t)
	p, err := s.Create(sitePageInput("test", "测试"))
	if err != nil {
		t.Fatalf("create: %v", err)
	}
	if err := s.Delete(p.ID); err != nil {
		t.Fatalf("delete: %v", err)
	}

	// 软删后重建同 slug：报"已删除"提示而非数据库唯一索引错误
	_, err = s.Create(sitePageInput("test", "重建"))
	if err == nil || !strings.Contains(err.Error(), "已删除") {
		t.Fatalf("软删后重建应提示已删除单页占用，got %v", err)
	}

	// 管理端列表含软删行且带 deleted 标记
	all, err := s.ListAll()
	if err != nil {
		t.Fatalf("ListAll: %v", err)
	}
	if len(all) != 1 || !all[0].Deleted || all[0].Slug != "test" {
		t.Fatalf("ListAll 应含软删单页且 Deleted=true，got %+v", all)
	}

	// 彻底删除后可重建
	if err := s.Purge(p.ID); err != nil {
		t.Fatalf("purge: %v", err)
	}
	if _, err := s.Create(sitePageInput("test", "重建")); err != nil {
		t.Fatalf("purge 后重建同 slug 不应报错: %v", err)
	}
}

func TestSitePagePurgeRequiresDeleted(t *testing.T) {
	s := newSitePageTestService(t)
	p, _ := s.Create(sitePageInput("alive", "在用"))
	if err := s.Purge(p.ID); err == nil || !errors.Is(err, ErrSitePageNotDeleted) {
		t.Fatalf("未删单页 Purge 应拒绝，got %v", err)
	}
}