package v1

import (
	"git.lzcwy.cn/zhengchiliu/zt-closet-backend/internal/dto"
	"git.lzcwy.cn/zhengchiliu/zt-closet-backend/internal/middleware"
	"git.lzcwy.cn/zhengchiliu/zt-closet-backend/internal/service"
	"git.lzcwy.cn/zhengchiliu/zt-closet-backend/pkg/app"
	"git.lzcwy.cn/zhengchiliu/zt-closet-backend/pkg/errcode"
	"github.com/gin-gonic/gin"
)

// NotificationHandler 通知相关接口。
type NotificationHandler struct {
	svc *service.NotificationService
}

// NewNotificationHandler 创建通知 handler。
func NewNotificationHandler() *NotificationHandler {
	return &NotificationHandler{svc: service.NewNotificationService()}
}

// List 分页查询当前用户通知。
func (h *NotificationHandler) List(c *gin.Context) {
	response := app.NewResponse(c)
	userID, ok := middleware.GetUserID(c.Request.Context())
	if !ok {
		response.ToErrorResponse(errcode.Unauthorized)
		return
	}
	var request dto.NotificationListRequest
	if err := c.ShouldBindQuery(&request); err != nil {
		response.ToErrorResponse(errcode.InvalidParams.WithDetails(err.Error()))
		return
	}
	out, e := h.svc.List(c.Request.Context(), userID, &request)
	if e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(out)
}

// Unread 获取当前用户未读数。
func (h *NotificationHandler) Unread(c *gin.Context) {
	response := app.NewResponse(c)
	userID, ok := middleware.GetUserID(c.Request.Context())
	if !ok {
		response.ToErrorResponse(errcode.Unauthorized)
		return
	}
	out, e := h.svc.Unread(c.Request.Context(), userID)
	if e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(out)
}

// Get 获取通知详情（uuid 来自路径参数）。
func (h *NotificationHandler) Get(c *gin.Context) {
	response := app.NewResponse(c)
	userID, ok := middleware.GetUserID(c.Request.Context())
	if !ok {
		response.ToErrorResponse(errcode.Unauthorized)
		return
	}
	request := dto.NotificationGetByUUIDRequest{NotificationUUID: c.Param("uuid")}
	if request.NotificationUUID == "" {
		response.ToErrorResponse(errcode.InvalidParams)
		return
	}
	out, e := h.svc.GetByUUID(c.Request.Context(), userID, &request)
	if e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(out)
}

// ReadAll 将当前用户全部通知标记为已读（前端进入通知页时调用）。
func (h *NotificationHandler) ReadAll(c *gin.Context) {
	response := app.NewResponse(c)
	userID, ok := middleware.GetUserID(c.Request.Context())
	if !ok {
		response.ToErrorResponse(errcode.Unauthorized)
		return
	}
	out, e := h.svc.ReadAll(c.Request.Context(), userID)
	if e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(out)
}

// Read 标记通知已读（uuid 来自路径参数）。
func (h *NotificationHandler) Read(c *gin.Context) {
	response := app.NewResponse(c)
	userID, ok := middleware.GetUserID(c.Request.Context())
	if !ok {
		response.ToErrorResponse(errcode.Unauthorized)
		return
	}
	request := dto.NotificationReadRequest{NotificationUUID: c.Param("uuid")}
	if request.NotificationUUID == "" {
		response.ToErrorResponse(errcode.InvalidParams)
		return
	}
	out, e := h.svc.Read(c.Request.Context(), userID, &request)
	if e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(out)
}