package event

import (
	"nixcn-cms/internal/exception"
	"nixcn-cms/service/service_event"
	"nixcn-cms/utils"

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

// Checkin generates a check-in code for a specific event.
//
//	@Summary		Generate Check-in Code
//	@Description	Creates a temporary check-in code for the authenticated user and event.
//	@Tags			Event
//	@Accept			json
//	@Produce		json
//	@Param			event_id	query		string													true	"Event UUID"
//	@Success		200			{object}	utils.RespStatus{data=service_event.CheckinResponse}	"Successfully generated code"
//	@Failure		401			{object}	utils.RespStatus{data=nil}								"Missing User ID / Unauthorized"
//	@Failure		400			{object}	utils.RespStatus{data=nil}								"Invalid Input"
//	@Failure		500			{object}	utils.RespStatus{data=nil}								"Internal Server Error"
//	@Security		ApiKeyAuth
//	@Router			/event/checkin [get]
func (self *EventHandler) Checkin(c *gin.Context) {
	userIdOrig, _ := c.Get("user_id")
	userId, _ := uuid.Parse(userIdOrig.(string))

	eventIdOrig := c.Query("event_id")
	eventId, err := uuid.Parse(eventIdOrig)
	if err != nil {
		errorCode := new(exception.Builder).
			SetStatus(exception.StatusUser).
			SetService(exception.ServiceEvent).
			SetEndpoint(exception.EndpointEventServiceCheckin).
			SetType(exception.TypeCommon).
			SetOriginal(exception.CommonErrorInvalidInput).
			SetError(err).
			Throw(c).String()
		utils.HttpResponse(c, 400, errorCode)
		return
	}

	result := self.svc.Checkin(&service_event.CheckinPayload{
		Context: c,
		UserId:  userId,
		Data:    &service_event.CheckinData{EventId: eventId},
	})
	utils.HttpResponse(c, result.Common.HttpCode, result.Common.Exception.String(), result.Data)
}

// CheckinSubmit validates a check-in code to complete attendance.
//
//	@Summary		Submit Check-in Code
//	@Description	Submits the generated code to mark the user as attended.
//	@Tags			Event
//	@Accept			json
//	@Produce		json
//	@Param			payload	body		service_event.CheckinSubmitData	true	"Checkin Code Data"
//	@Success		200		{object}	utils.RespStatus{data=nil}		"Attendance marked successfully"
//	@Failure		400		{object}	utils.RespStatus{data=nil}		"Invalid Code or Input"
//	@Security		ApiKeyAuth
//	@Router			/event/checkin/submit [post]
func (self *EventHandler) CheckinSubmit(c *gin.Context) {
	var data service_event.CheckinSubmitData
	if err := c.ShouldBindJSON(&data); err != nil {
		errorCode := new(exception.Builder).
			SetStatus(exception.StatusUser).
			SetService(exception.ServiceEvent).
			SetEndpoint(exception.EndpointEventServiceCheckinSubmit).
			SetType(exception.TypeCommon).
			SetOriginal(exception.CommonErrorInvalidInput).
			SetError(err).
			Throw(c).String()
		utils.HttpResponse(c, 400, errorCode)
		return
	}

	result := self.svc.CheckinSubmit(&service_event.CheckinSubmitPayload{
		Context: c,
		Data:    &data,
	})
	utils.HttpResponse(c, result.Common.HttpCode, result.Common.Exception.String())
}

// CheckinQuery retrieves the check-in status of a user for an event.
//
//	@Summary		Query Check-in Status
//	@Description	Returns the timestamp of when the user checked in, or null if not yet checked in.
//	@Tags			Event
//	@Accept			json
//	@Produce		json
//	@Param			event_id	query		string														true	"Event UUID"
//	@Success		200			{object}	utils.RespStatus{data=service_event.CheckinQueryResponse}	"Current attendance status"
//	@Failure		400			{object}	utils.RespStatus{data=nil}									"Invalid Input"
//	@Failure		404			{object}	utils.RespStatus{data=nil}									"Record Not Found"
//	@Security		ApiKeyAuth
//	@Router			/event/checkin/query [get]
func (self *EventHandler) CheckinQuery(c *gin.Context) {
	userIdOrig, _ := c.Get("user_id")
	userId, _ := uuid.Parse(userIdOrig.(string))

	eventIdOrig := c.Query("event_id")
	eventId, err := uuid.Parse(eventIdOrig)
	if err != nil {
		errorCode := new(exception.Builder).
			SetStatus(exception.StatusUser).
			SetService(exception.ServiceEvent).
			SetEndpoint(exception.EndpointEventServiceCheckinQuery).
			SetType(exception.TypeCommon).
			SetOriginal(exception.CommonErrorInvalidInput).
			SetError(err).
			Throw(c).String()
		utils.HttpResponse(c, 400, errorCode)
		return
	}

	result := self.svc.CheckinQuery(&service_event.CheckinQueryPayload{
		Context: c,
		UserId:  userId,
		Data:    &service_event.CheckinQueryData{EventId: eventId},
	})
	utils.HttpResponse(c, result.Common.HttpCode, result.Common.Exception.String(), result.Data)
}