package arlo

import (
	"fmt"
	"local/logb"
	"local/sandbox/arlo-cleaner/config"
	"time"

	"github.com/jeffreydwalter/arlo-go"
)

type Arlo struct {
	client *arlo.Arlo
}

func New() (*Arlo, error) {
	client, err := arlo.Login(config.ArloUser, config.ArloPass)
	if err != nil {
		err = fmt.Errorf("failed to arlo.New: %v", err)
	}
	logb.Debugf("logged into arlo @%v", config.ArloUser)
	return &Arlo{
		client: client,
	}, err
}

func (a *Arlo) ListSince(since time.Time) ([]*Video, error) {
	library, err := a.client.GetLibrary(since, time.Now())
	if err != nil {
		return nil, err
	}
	videos := make([]*Video, len(*library))
	for i, recording := range *library {
		videos[i] = NewVideo(recording)
	}
	logb.Debugf("found %v videos in library", len(videos))
	return videos, nil
}

func (a *Arlo) DeleteVideos(videos []*Video) error {
	library := make([]arlo.Recording, len(videos))
	for i, video := range videos {
		library[i] = video.Recording
	}
	lib := arlo.Library(library)
	logb.Infof("deleting %v videos from library", len(videos))
	if config.DryRun {
		logb.Infof("delete", videos)
		return nil
	}
	return a.client.BatchDeleteRecordings(&lib)
}

func (a *Arlo) DeleteVideo(video *Video) error {
	if config.DryRun {
		logb.Infof("delete", video)
		return nil
	}
	logb.Infof("deleting %v videos from library", 1)
	return a.DeleteVideos([]*Video{video})
}

func (a *Arlo) Usage() (int64, error) {
	videos, err := a.ListSince(time.Now().Add(-1 * 24 * 30 * time.Hour))
	if err != nil {
		return 0, err
	}
	var current int64
	for _, video := range videos {
		current += video.Size()
	}
	logb.Debugf("arlo probably using %v B (%v MB) over %v videos", current, current/1000/1000, len(videos))
	return current, nil
}

func (a *Arlo) NeedsPruning() (bool, error) {
	usage, err := a.Usage()
	logb.Debugf("arlo needs pruning = %v > %v", usage, config.ArloCapacity)
	return usage > config.ArloCapacity, err
}