package event

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

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

// Create handles the request to create a new event.
//
//	@Summary		Create an Event
//	@Description	Allows a Lv30+ user to create a new event. Users at exactly Lv30 may only create events with type 'party'. Sets type and enable_kyc, which are immutable after creation.
//	@Tags			Event
//	@Accept			json
//	@Produce		json
//	@Security		Bearer
//	@Param			request	body		service_event.EventCreateData								true	"Event Creation Details"
//	@Success		200		{object}	utils.RespStatus{data=service_event.EventCreateResponse}	"Successfully created the event"
//	@Failure		400		{object}	utils.RespStatus{data=nil}									"Invalid Input"
//	@Failure		401		{object}	utils.RespStatus{data=nil}									"Missing User ID / Unauthorized"
//	@Failure		403		{object}	utils.RespStatus{data=nil}									"Permission Denied / Type Not Allowed for this level"
//	@Failure		500		{object}	utils.RespStatus{data=nil}									"Internal Server Error / Database Error"
//	@Router			/event/create [post]
func (self *EventHandler) Create(c *gin.Context) {
	ctx, span := tracer.StartSpan(
		c.Request.Context(),
		"api_event",
		"create",
	)
	defer span.End()

	ctx = exception.ContextWithEndpoint(ctx, exception.EndpointEventCreate)
	ctx = exception.ContextWithService(ctx, exception.ServiceEndpoint)

	userIdOrig, ok := c.Get("user_id")
	if !ok {
		errorCode := exception.New(
			exception.WithStatus(exception.StatusUser),
			exception.WithType(exception.TypeCommon),
			exception.WithOriginal(exception.CommonErrorMissingUserId),
			exception.WithError(errors.New("Missing UserId")),
		).Throw(ctx).String()
		utils.HttpResponse(c, 403, errorCode)
		return
	}

	permissionLevelOrig, ok := c.Get("permission_level")
	if !ok {
		errorCode := exception.New(
			exception.WithStatus(exception.StatusUser),
			exception.WithType(exception.TypeCommon),
			exception.WithOriginal(exception.CommonErrorPermissionDenied),
			exception.WithError(errors.New("Missing PermissionLevel")),
		).Throw(ctx).String()
		utils.HttpResponse(c, 403, errorCode)
		return
	}

	var createData service_event.EventCreateData
	if err := c.ShouldBindJSON(&createData); err != nil {
		errorCode := exception.New(
			exception.WithStatus(exception.StatusUser),
			exception.WithType(exception.TypeCommon),
			exception.WithOriginal(exception.CommonErrorInvalidInput),
			exception.WithError(err),
		).Throw(ctx).String()
		utils.HttpResponse(c, 400, errorCode)
		return
	}

	createData.UserId = userIdOrig.(string)
	createData.PermissionLevel = permissionLevelOrig.(uint)

	payload := &service_event.EventCreatePayload{
		Context: ctx,
		Data:    &createData,
	}

	result := self.svc.Create(payload)

	if result.Common.Exception.Original != exception.CommonSuccess {
		utils.HttpResponse(c, result.Common.HttpCode, result.Common.Exception.String())
		return
	}

	utils.HttpResponse(c, result.Common.HttpCode, result.Common.Exception.String(), result.Data)
}