package main

import (
	"image"
	"image/color"
	"io/ioutil"
	"log"
	"os"
	"path/filepath"
	"time"
)

const timeLayout = "2006-01-02_15-4-5.jpg"

// Watch defines one or more areas that should be monitored for motion
type Watch struct {
	Name  string            `json:"name"`
	Color color.RGBA        `json:"color"`
	Areas []image.Rectangle `json:"areas"`
}

// WatchStoreDirExists returns filepath.Join(s.GetStreamStoreDirPath(), w.Name)
func (w Watch) WatchStoreDirExists(s Stream) bool {
	return FileExists(w.GetWatchStoreDir(s))
}

// GetWatchStoreDir returns filepath.Join(s.GetStreamStoreDirPath(), w.Name)
func (w Watch) GetWatchStoreDir(s Stream) string {
	return filepath.Join(s.GetStreamStoreDirPath(), w.Name)
}

// GetWatchStoreDirInstantPath returns filepath.Join(s.GetWatchStoreDir(), "")
func (w Watch) GetWatchStoreDirInstantPath(s Stream) string {
	now := time.Now()
	return filepath.Join(w.GetWatchStoreDir(s), now.Format(timeLayout))
}

// CopyInstant makes a copy of src to GetWatchStoreDirInstantPath(s)
func (w Watch) CopyInstant(src string, s Stream) {
	if !FileExists(w.GetWatchStoreDir(s)) {
		os.MkdirAll(w.GetWatchStoreDir(s), os.ModePerm)
	}
	dest := w.GetWatchStoreDirInstantPath(s)
	if !FileExists(src) {
		log.Fatal("Nothing to copy ", src)
		return
	}
	if FileExists(dest) {
		os.Remove(dest)
	}
	srcData, err := ioutil.ReadFile(src)
	if err != nil {
		log.Println(err)
	}
	err = ioutil.WriteFile(dest, srcData, 0644)
	if err != nil {
		log.Println(err)
	}
}