package main

type Service struct {
	Db Database
}

type DateInfo struct {
	Date      string
	Tomorrow  string
	Yesterday string
}

type EntryPage struct {
	Entry    *Entry
	Detached bool
	Tracking *Entry
}

type RootPage struct {
	Entry   *EntryPage
	Entries []*Entry
}

type TasksPage struct {
	Tasks []*Task
}

func NewService(db Database) *Service {
	return &Service{
		Db: db,
	}
}

func (srv *Service) GetTasksPage() (*TasksPage, error) {
	tasks, err := srv.Db.GetTasks()
	if err != nil {
		return nil, err
	}
	return &TasksPage{
		Tasks: tasks,
	}, nil
}
func (srv *Service) GetEntryPage(detached *Entry) (*EntryPage, error) {
	tracking, err := srv.Db.GetTracking()
	if err != nil {
		return nil, err
	}

	page := &EntryPage{
		Entry:    tracking,
		Detached: false,
		Tracking: tracking,
	}

	if detached != nil {
		page.Entry = detached
		page.Detached = true
	}

	return page, nil
}

func (srv *Service) GetRootPage() (*RootPage, error) {
	entry, err := srv.GetEntryPage(nil)
	if err != nil {
		return nil, err
	}
	entries, err := srv.Db.GetEntries()
	if err != nil {
		return nil, err
	}

	return &RootPage{
		Entry:   entry,
		Entries: entries,
	}, nil
}