task_track/backend/internal/handler/task/delete_task_comment.go

package task

import (
	"net/http"
	"strconv"

	"task-track-backend/model"
	"task-track-backend/pkg/database"

	"github.com/gin-gonic/gin"
)

func (h *TaskHandler) DeleteTaskComment(c *gin.Context) {
	// 获取任务ID
	taskIDStr := c.Param("id")
	taskID, err := strconv.ParseUint(taskIDStr, 10, 32)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "无效的任务ID"})
		return
	}

	// 获取评论ID
	commentIDStr := c.Param("comment_id")
	commentID, err := strconv.ParseUint(commentIDStr, 10, 32)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "无效的评论ID"})
		return
	}

	db := database.GetDB()

	// 检查任务是否存在
	var existingTask model.Task
	if err := db.First(&existingTask, uint(taskID)).Error; err != nil {
		if err.Error() == "record not found" {
			c.JSON(http.StatusNotFound, gin.H{"error": "任务不存在"})
			return
		}
		c.JSON(http.StatusInternalServerError, gin.H{"error": "查询任务失败"})
		return
	}

	// 检查评论是否存在且属于该任务
	var existingComment model.TaskComment
	if err := db.Where("id = ? AND task_id = ?", uint(commentID), uint(taskID)).
		First(&existingComment).Error; err != nil {
		if err.Error() == "record not found" {
			c.JSON(http.StatusNotFound, gin.H{"error": "评论不存在"})
			return
		}
		c.JSON(http.StatusInternalServerError, gin.H{"error": "查询评论失败"})
		return
	}

	// 删除评论
	if err := db.Delete(&existingComment).Error; err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": "删除评论失败"})
		return
	}

	c.JSON(http.StatusOK, gin.H{"message": "评论删除成功"})
}