package controller

import (
	"net/http"
	"strconv"

	"ezops/model"

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

// ListCronJobs 获取定时任务列表
// @Summary 获取定时任务列表
// @Description 获取所有定时任务列表
// @Tags 自动化运维
// @Produce json
// @Security Bearer
// @Param page query int false "页码"
// @Param page_size query int false "每页数量"
// @Success 200 {object} model.Response{data=model.ListResponse}
// @Router /cron-jobs [get]
func (h *AutomationHandler) ListCronJobs(c *gin.Context) {
	var query model.PageQuery
	c.ShouldBindQuery(&query)

	var total int64
	h.db.Model(&model.CronJob{}).Count(&total)

	var jobs []model.CronJob
	h.db.Preload("Script").Offset(query.GetOffset()).Limit(query.GetLimit()).Find(&jobs)

	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: "success",
		Data: model.ListResponse{
			List:  jobs,
			Total: total,
		},
	})
}

// GetCronJob 获取定时任务详情
// @Summary 获取定时任务详情
// @Description 获取指定定时任务的详细信息
// @Tags 自动化运维
// @Produce json
// @Security Bearer
// @Param id path int true "任务ID"
// @Success 200 {object} model.Response{data=model.CronJob}
// @Router /cron-jobs/{id} [get]
func (h *AutomationHandler) GetCronJob(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))

	var job model.CronJob
	if err := h.db.Preload("Script").First(&job, id).Error; err != nil {
		c.JSON(http.StatusNotFound, model.Response{
			Code:    404,
			Message: "定时任务不存在",
		})
		return
	}

	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: "success",
		Data:    job,
	})
}

// CreateCronJob 创建定时任务
// @Summary 创建定时任务
// @Description 创建新定时任务
// @Tags 自动化运维
// @Accept json
// @Produce json
// @Security Bearer
// @Param request body model.CreateCronJobRequest true "创建请求"
// @Success 200 {object} model.Response{data=model.CronJob}
// @Router /cron-jobs [post]
func (h *AutomationHandler) CreateCronJob(c *gin.Context) {
	var req model.CreateCronJobRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, model.Response{
			Code:    400,
			Message: "请求参数错误: " + err.Error(),
		})
		return
	}

	job := model.CronJob{
		Name:        req.Name,
		Description: req.Description,
		CronExpr:    req.CronExpr,
		Type:        req.Type,
		Content:     req.Content,
		ScriptID:    req.ScriptID,
		TargetType:  req.TargetType,
		Timeout:     req.Timeout,
		NotifyOn:    req.NotifyOn,
		Enabled:     true,
	}

	if job.Timeout == 0 {
		job.Timeout = 300
	}
	if job.NotifyOn == "" {
		job.NotifyOn = "failure"
	}

	if err := h.db.Create(&job).Error; err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{
			Code:    500,
			Message: "创建失败",
		})
		return
	}

	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: "创建成功",
		Data:    job,
	})
}

// UpdateCronJob 更新定时任务
// @Summary 更新定时任务
// @Description 更新指定定时任务
// @Tags 自动化运维
// @Accept json
// @Produce json
// @Security Bearer
// @Param id path int true "任务ID"
// @Param request body model.CreateCronJobRequest true "更新请求"
// @Success 200 {object} model.Response{data=model.CronJob}
// @Router /cron-jobs/{id} [put]
func (h *AutomationHandler) UpdateCronJob(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))

	var req model.CreateCronJobRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, model.Response{
			Code:    400,
			Message: "请求参数错误: " + err.Error(),
		})
		return
	}

	var job model.CronJob
	if err := h.db.First(&job, id).Error; err != nil {
		c.JSON(http.StatusNotFound, model.Response{
			Code:    404,
			Message: "定时任务不存在",
		})
		return
	}

	updates := map[string]interface{}{
		"name":        req.Name,
		"description": req.Description,
		"cron_expr":   req.CronExpr,
		"type":        req.Type,
		"content":     req.Content,
		"script_id":   req.ScriptID,
		"target_type": req.TargetType,
		"timeout":     req.Timeout,
		"notify_on":   req.NotifyOn,
	}

	if err := h.db.Model(&job).Updates(updates).Error; err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{
			Code:    500,
			Message: "更新失败",
		})
		return
	}

	h.db.Preload("Script").First(&job, id)

	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: "更新成功",
		Data:    job,
	})
}

// DeleteCronJob 删除定时任务
// @Summary 删除定时任务
// @Description 删除指定定时任务
// @Tags 自动化运维
// @Produce json
// @Security Bearer
// @Param id path int true "任务ID"
// @Success 200 {object} model.Response
// @Router /cron-jobs/{id} [delete]
func (h *AutomationHandler) DeleteCronJob(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))

	if err := h.db.Delete(&model.CronJob{}, id).Error; err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{
			Code:    500,
			Message: "删除失败",
		})
		return
	}

	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: "删除成功",
	})
}

// BatchDeleteCronJobs 批量删除定时任务
// @Summary 批量删除定时任务
// @Description 批量删除定时任务
// @Tags 自动化运维
// @Accept json
// @Produce json
// @Security Bearer
// @Param request body model.IDsRequest true "删除请求"
// @Success 200 {object} model.Response
// @Router /cron-jobs/batch-delete [delete]
func (h *AutomationHandler) BatchDeleteCronJobs(c *gin.Context) {
	var req model.IDsRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, model.Response{
			Code:    400,
			Message: "请求参数错误",
		})
		return
	}

	if err := h.db.Delete(&model.CronJob{}, req.IDs).Error; err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{
			Code:    500,
			Message: "删除失败",
		})
		return
	}

	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: "删除成功",
	})
}

// ToggleCronJob 切换定时任务状态
// @Summary 切换定时任务状态
// @Description 启用或禁用定时任务
// @Tags 自动化运维
// @Produce json
// @Security Bearer
// @Param id path int true "任务ID"
// @Success 200 {object} model.Response{data=model.CronJob}
// @Router /cron-jobs/{id}/toggle [post]
func (h *AutomationHandler) ToggleCronJob(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))

	var job model.CronJob
	if err := h.db.First(&job, id).Error; err != nil {
		c.JSON(http.StatusNotFound, model.Response{
			Code:    404,
			Message: "定时任务不存在",
		})
		return
	}

	job.Enabled = !job.Enabled
	if err := h.db.Save(&job).Error; err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{
			Code:    500,
			Message: "操作失败",
		})
		return
	}

	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: "操作成功",
		Data:    job,
	})
}

// ExecuteCronJob 执行定时任务
// @Summary 执行定时任务
// @Description 手动执行定时任务
// @Tags 自动化运维
// @Produce json
// @Security Bearer
// @Param id path int true "任务ID"
// @Success 200 {object} model.Response{data=model.TaskExecution}
// @Router /cron-jobs/{id}/execute [post]
func (h *AutomationHandler) ExecuteCronJob(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))
	execution, err := QueueCronJobByID(h.db, uint(id))
	if err != nil {
		c.JSON(http.StatusNotFound, model.Response{
			Code:    404,
			Message: err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: "已提交后台执行",
		Data:    execution,
	})
}