package logic

import (
	"context"
	"fmt"

	"git.cialloo.com/CiallooWeb/Blog/app/internal/svc"
	"git.cialloo.com/CiallooWeb/Blog/app/internal/types"

	"github.com/zeromicro/go-zero/core/logx"
)

type DeletePostLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

// Delete a blog post
func NewDeletePostLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeletePostLogic {
	return &DeletePostLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *DeletePostLogic) DeletePost(req *types.DeletePostReq) (resp *types.DeletePostResp, err error) {
	// Delete post from database
	query := `DELETE FROM posts WHERE id = $1`
	result, err := l.svcCtx.DB.ExecContext(l.ctx, query, req.Post_id)
	if err != nil {
		l.Errorf("Failed to delete post: %v", err)
		return nil, err
	}

	// Check if post exists
	rowsAffected, err := result.RowsAffected()
	if err != nil {
		l.Errorf("Failed to get rows affected: %v", err)
		return nil, err
	}
	if rowsAffected == 0 {
		l.Errorf("Post not found with id: %s", req.Post_id)
		return nil, fmt.Errorf("post not found")
	}

	return &types.DeletePostResp{}, nil
}