package dto

import (
	"time"

	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
	locationDTO "gitlab.com/mbugroup/lti-api.git/internal/modules/master/locations/dto"
	userDTO "gitlab.com/mbugroup/lti-api.git/internal/modules/users/dto"
)

// === DTO Structs ===

type KandangRelationDTO struct {
	Id       uint                             `json:"id"`
	Name     string                           `json:"name"`
	Status   string                           `json:"status"`
	Capacity float64                          `json:"capacity"`
	Location *locationDTO.LocationRelationDTO `json:"location,omitempty"`
	Pic      *userDTO.UserRelationDTO         `json:"pic,omitempty"`
}

type KandangListDTO struct {
	Id          uint                            `json:"id"`
	Name        string                          `json:"name"`
	Status      string                          `json:"status"`
	Capacity    float64                         `json:"capacity"`
	Location    locationDTO.LocationRelationDTO `json:"location"`
	Pic         userDTO.UserRelationDTO         `json:"pic"`
	CreatedUser userDTO.UserRelationDTO         `json:"created_user"`
	CreatedAt   time.Time                       `json:"created_at"`
	UpdatedAt   time.Time                       `json:"updated_at"`
}

type KandangDetailDTO struct {
	KandangListDTO
}

// === Mapper Functions ===

func ToKandangRelationDTO(e entity.Kandang) KandangRelationDTO {
	var location *locationDTO.LocationRelationDTO
	if e.Location.Id != 0 {
		mapped := locationDTO.ToLocationRelationDTO(e.Location)
		location = &mapped
	}

	var pic *userDTO.UserRelationDTO
	if e.Pic.Id != 0 {
		mapped := userDTO.ToUserRelationDTO(e.Pic)
		pic = &mapped
	}

	return KandangRelationDTO{
		Id:       e.Id,
		Name:     e.Name,
		Status:   e.Status,
		Capacity: e.Capacity,
		Location: location,
		Pic:      pic,
	}
}

func ToKandangListDTO(e entity.Kandang) KandangListDTO {
	var location locationDTO.LocationRelationDTO
	if e.Location.Id != 0 {
		mapped := locationDTO.ToLocationRelationDTO(e.Location)
		location = mapped
	}

	var pic userDTO.UserRelationDTO
	if e.Pic.Id != 0 {
		mapped := userDTO.ToUserRelationDTO(e.Pic)
		pic = mapped
	}

	var createdUser userDTO.UserRelationDTO
	if e.CreatedUser.Id != 0 {
		mapped := userDTO.ToUserRelationDTO(e.CreatedUser)
		createdUser = mapped
	}

	return KandangListDTO{
		Id:          e.Id,
		Name:        e.Name,
		Status:      e.Status,
		Location:    location,
		Capacity:    e.Capacity,
		Pic:         pic,
		CreatedAt:   e.CreatedAt,
		UpdatedAt:   e.UpdatedAt,
		CreatedUser: createdUser,
	}
}

func ToKandangListDTOs(e []entity.Kandang) []KandangListDTO {
	result := make([]KandangListDTO, len(e))
	for i, r := range e {
		result[i] = ToKandangListDTO(r)
	}
	return result
}

func ToKandangDetailDTO(e entity.Kandang) KandangDetailDTO {
	return KandangDetailDTO{
		KandangListDTO: ToKandangListDTO(e),
	}
}