package Forum

import (
	v1 "TrangleAgent/api/forum/v1"
	"TrangleAgent/internal/dao"
	"TrangleAgent/internal/model"
	"TrangleAgent/internal/service"
	"context"

	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/os/gtime"
)

// sForumPosts 帖子逻辑
type sForumPosts struct{}

func NewForumPosts() *sForumPosts {
	return &sForumPosts{}
}

func init() {
	service.RegisterForumPosts(NewForumPosts())
}

func (s *sForumPosts) Create(ctx context.Context, req *v1.ForumPostsCreateReq) (res *v1.ForumPostsCreateRes, err error) {

	//校验参数
	if len(req.Title) < 5 || len(req.Title) > 100 {
		return nil, gerror.New("标题长度要在5-100之间")
	}
	if len(req.Content) < 5 || len(req.Content) > 10000 {
		return nil, gerror.New("内容长度要在5-10000之间")
	}
	if req.BoardId == 0 {
		return nil, gerror.New("板块ID不能为空")
	}

	//创建帖子
	insert := model.ForumPost{
		BoardId:    req.BoardId,
		UserId:     req.UserId,
		Title:      req.Title,
		Content:    req.Content,
		CoverImage: req.CoverImage,
		Status:     req.Status,
		CreatedAt:  gtime.Now(),
		UpdatedAt:  gtime.Now(),
	}
	result, err := dao.ForumPosts.Ctx(ctx).Data(insert).Insert()
	if err != nil {
		return nil, gerror.Wrap(err, "创建帖子失败")
	}

	id, err := result.LastInsertId()
	if err != nil {
		return nil, gerror.Wrap(err, "获取帖子ID失败")
	}

	return &v1.ForumPostsCreateRes{Id: uint64(id)}, nil

}

func (s *sForumPosts) Update(ctx context.Context, req *v1.ForumPostsUpdateReq) (res *v1.ForumPostsUpdateRes, err error) {
	//校验参数
	if len(req.Title) < 5 || len(req.Title) > 100 {
		return nil, gerror.New("标题长度要在5-100之间")
	}
	if len(req.Content) < 5 || len(req.Content) > 10000 {
		return nil, gerror.New("内容长度要在5-10000之间")
	}
	//只能修改 帖子标题 帖子正文 帖子封面图URL
	fields := []string{"title", "content", "cover_image"}
	//更新帖子
	_, err = dao.ForumPosts.Ctx(ctx).Data(model.ForumPost{
		Id:         req.Id,
		Title:      req.Title,
		Content:    req.Content,
		CoverImage: req.CoverImage,
	}).Fields(fields).OmitEmpty().Update()
	if err != nil {
		return nil, gerror.Wrap(err, "更新帖子失败")
	}

	return &v1.ForumPostsUpdateRes{Id: req.Id}, nil
}

func (s *sForumPosts) Delete(ctx context.Context, req *v1.ForumPostsDeleteReq) (res *v1.ForumPostsDeleteRes, err error) {
	//根据id删除帖子
	_, err = dao.ForumPosts.Ctx(ctx).Where(dao.ForumPosts.Columns().Id, req.Id).Delete()
	if err != nil {
		return nil, gerror.Wrap(err, "删除帖子失败")
	}
	return &v1.ForumPostsDeleteRes{}, nil
}

func (s *sForumPosts) View(ctx context.Context, req *v1.ForumPostsViewReq) (res *v1.ForumPostsViewRes, err error) {
	// 根据id查询帖子
	var post model.ForumPostViewParams
	err = dao.ForumPosts.Ctx(ctx).Where(dao.ForumPosts.Columns().Id, req.Id).Scan(&post)
	if err != nil {
		return nil, gerror.Wrap(err, "查询帖子失败")
	}
	return &v1.ForumPostsViewRes{
		ForumPostViewParams: post,
	}, nil
}

func (s *sForumPosts) List(ctx context.Context, req *v1.ForumPostsListReq) (res *v1.ForumPostsListRes, err error) {
	// 查询帖子列表

	mod := dao.ForumPosts.Ctx(ctx)

	if req.Title != "" {
		mod = mod.WhereLike(dao.ForumPosts.Columns().Title, "%"+req.Title+"%")
	}
	if req.BoardId != 0 {
		mod = mod.Where(dao.ForumPosts.Columns().BoardId, req.BoardId)
	}
	var list []*model.ForumPostViewParams
	err = mod.Scan(&list)
	if err != nil {
		return nil, gerror.Wrap(err, "查询帖子列表失败")
	}
	return &v1.ForumPostsListRes{
		List: list,
	}, nil
}