package service_agenda

import (
	"context"
	"nixcn-cms/data"
	"nixcn-cms/internal/exception"
	"nixcn-cms/service/shared"

	"github.com/google/uuid"
	"gorm.io/gorm"
)

type SubmitData struct {
	EventId     uuid.UUID `json:"event_id"`
	Name        string    `json:"name"`
	Description string    `json:"description"`
}

type SubmitPayload struct {
	Context context.Context
	UserId  uuid.UUID `json:"user_id"`
	Data    *SubmitData
}

type SubmitResponse struct {
	AgendaId uuid.UUID `json:"agenda_id"`
}

type SubmitResult struct {
	Common shared.CommonResult
	Data   *SubmitResponse
}

func (self *AgendaServiceImpl) Submit(payload *SubmitPayload) (result *SubmitResult) {
	var err error

	attendanceData, err := new(data.Attendance).
		GetAttendance(payload.Context, payload.UserId, payload.Data.EventId)

	if err != nil {
		if err == gorm.ErrRecordNotFound {
			exception := new(exception.Builder).
				SetStatus(exception.StatusUser).
				SetService(exception.ServiceAgenda).
				SetEndpoint(exception.EndpointAgendaServiceSubmit).
				SetType(exception.TypeCommon).
				SetOriginal(exception.CommonErrorInvalidInput).
				SetError(err).
				Throw(payload.Context)

			result = &SubmitResult{
				Common: shared.CommonResult{
					HttpCode:  403,
					Exception: exception,
				},
				Data: nil,
			}

			return
		}
		exception := new(exception.Builder).
			SetStatus(exception.StatusServer).
			SetService(exception.ServiceAgenda).
			SetEndpoint(exception.EndpointAgendaServiceSubmit).
			SetType(exception.TypeCommon).
			SetOriginal(exception.CommonErrorDatabase).
			SetError(err).
			Throw(payload.Context)

		result = &SubmitResult{
			Common: shared.CommonResult{
				HttpCode:  500,
				Exception: exception,
			},
			Data: nil,
		}

		return
	}

	agendaModel := new(data.Agenda).
		SetAttendanceId(attendanceData.AttendanceId).
		SetName(payload.Data.Name).
		SetDescription(payload.Data.Description).
		SetIsApproved(false)

	err = agendaModel.Create(payload.Context)
	if err != nil {
		exception := new(exception.Builder).
			SetStatus(exception.StatusServer).
			SetService(exception.ServiceAgenda).
			SetEndpoint(exception.EndpointAgendaServiceSubmit).
			SetType(exception.TypeCommon).
			SetOriginal(exception.CommonErrorDatabase).
			SetError(err).
			Throw(payload.Context)

		result = &SubmitResult{
			Common: shared.CommonResult{
				HttpCode:  500,
				Exception: exception,
			},
			Data: nil,
		}

		return
	}

	successException := new(exception.Builder).
		SetStatus(exception.StatusSuccess).
		SetService(exception.ServiceAgenda).
		SetEndpoint(exception.EndpointAgendaServiceSubmit).
		SetType(exception.TypeCommon).
		SetOriginal(exception.CommonSuccess).
		SetError(nil).
		Throw(payload.Context)

	resultData := &SubmitResponse{
		AgendaId: agendaModel.AgendaId,
	}

	result = &SubmitResult{
		Common: shared.CommonResult{
			HttpCode:  200,
			Exception: successException,
		},
		Data: resultData,
	}

	return
}