package service

import (
	"context"
	"errors"
	"log"
	"net/http"

	"github.com/moustachioed/dash/backend/dashapi"
	"github.com/moustachioed/dash/backend/database"
	"github.com/moustachioed/dash/backend/mapping"
)

// ApiService is a service that implements the logic for the DefaultApiServicer
// This service should implement the business logic for every endpoint for the Api API.
// Include any external packages or services that will be required by this service.
type ApiService struct {
	db     database.Database
	mapper mapping.Mapper
}

// NewApiService creates a default api service
func NewApiService(db database.Database, mapper mapping.Mapper) dashapi.DefaultApiServicer {
	service := ApiService{
		db:     db,
		mapper: mapper,
	}

	return &service
}

// GetJournalEntryForDate -
func (s *ApiService) GetJournalEntryForDate(ctx context.Context, date string) (dashapi.ImplResponse, error) {
	d, err := s.mapper.StringToDate(date)
	if err != nil {
		log.Fatal(err)
	}

	dbEntry, _ := s.db.GetJournalEntryForDate(d)
	journal := s.mapper.JournalDbToApi(dbEntry)
	return dashapi.Response(200, journal), nil
}

// WriteJournalEntryForDate -
func (s *ApiService) WriteJournalEntry(ctx context.Context, journalEntry dashapi.JournalEntry) (dashapi.ImplResponse, error) {
	journal := s.mapper.JournalApiToDb(journalEntry)
	s.db.WriteJournalEntry(journal)

	return dashapi.Response(200, nil), nil
}

func (s *ApiService) DeleteJournalEntryForDate(ctx context.Context, date string) (dashapi.ImplResponse, error) {
	return dashapi.Response(http.StatusNotImplemented, nil), errors.New("DeleteJournalEntryForDate method not implemented")
}