package transformer

import (
	"eslogad-be/internal/contract"
	"eslogad-be/internal/entities"
)

func LetterEntityToContract(e *entities.LetterIncoming, attachments []entities.LetterIncomingAttachment) *contract.IncomingLetterResponse {
	resp := &contract.IncomingLetterResponse{
		ID:                  e.ID,
		LetterNumber:        e.LetterNumber,
		ReferenceNumber:     e.ReferenceNumber,
		Subject:             e.Subject,
		Description:         e.Description,
		PriorityID:          e.PriorityID,
		SenderInstitutionID: e.SenderInstitutionID,
		ReceivedDate:        e.ReceivedDate,
		DueDate:             e.DueDate,
		Status:              string(e.Status),
		CreatedBy:           e.CreatedBy,
		CreatedAt:           e.CreatedAt,
		UpdatedAt:           e.UpdatedAt,
		Attachments:         make([]contract.IncomingLetterAttachmentResponse, 0, len(attachments)),
	}
	for _, a := range attachments {
		resp.Attachments = append(resp.Attachments, contract.IncomingLetterAttachmentResponse{
			ID:         a.ID,
			FileURL:    a.FileURL,
			FileName:   a.FileName,
			FileType:   a.FileType,
			UploadedAt: a.UploadedAt,
		})
	}
	return resp
}

func DispositionsToContract(list []entities.LetterDisposition) []contract.DispositionResponse {
	out := make([]contract.DispositionResponse, 0, len(list))
	for _, d := range list {
		out = append(out, contract.DispositionResponse{
			ID:               d.ID,
			LetterID:         d.LetterID,
			FromDepartmentID: d.FromDepartmentID,
			ToDepartmentID:   d.ToDepartmentID,
			Notes:            d.Notes,
			Status:           string(d.Status),
			CreatedBy:        d.CreatedBy,
			CreatedAt:        d.CreatedAt,
		})
	}
	return out
}

func DiscussionEntityToContract(e *entities.LetterDiscussion) *contract.LetterDiscussionResponse {
	var mentions map[string]interface{}
	if e.Mentions != nil {
		mentions = map[string]interface{}(e.Mentions)
	}
	return &contract.LetterDiscussionResponse{
		ID:        e.ID,
		LetterID:  e.LetterID,
		ParentID:  e.ParentID,
		UserID:    e.UserID,
		Message:   e.Message,
		Mentions:  mentions,
		CreatedAt: e.CreatedAt,
		UpdatedAt: e.UpdatedAt,
		EditedAt:  e.EditedAt,
	}
}