import eyed3
import os
import sys
import shutil
from html_writer import Html

#TracksDir class definition
class TracksDir:
    def __init__(self, trackFiles):
        self.trackFiles = trackFiles

    #HTML Output
    def toHTML(self):
        head = Html()
        head.self_close_tag('meta', attributes=dict(charset='utf-8'))
        head.self_close_tag('link', attributes=dict(href='assets/labelize.css',rel='stylesheet'))
        body = Html()
        trackNumber = 0
        with body.tag('div',classes=['track-list']):
            #body.tag_with_content('Track List', name='h2')
            with body.tag('div',attributes=dict(id='player-toggler')):
                body.self_close_tag('img', attributes=dict(src='assets/labelize.png'))
            with body.tag('ul') as list:
                for t in self.trackFiles:
                    trackNumber =  trackNumber + 1
                    trackId = 'track-' + str(trackNumber)
                    audiofile = eyed3.load("build/" + t)
                    with body.tag('li') as li:
                        print(audiofile.tag.title)
                        li += str(audiofile.tag.title or 'untitled')+ ' - '
                        li += str(audiofile.tag.album or 'untitled')+ ' - '
                        li += audiofile.tag.artist
                        with body.tag('button',attributes=dict(onclick="togglePlay(this)")):
                            body.self_close_tag('img', attributes=dict(src='assets/play.png'))
                            with body.tag('audio', attributes=dict(src=t, id=trackId,
                            ontimeupdate="updateProgress(this)")) as audio:
                                audio+="Your browser does not support the audio element"

        # with body.tag('canvas',attributes=dict(id='player-progress')) as canvas:
        #     canvas += "player's progress bar"
        with body.tag('progress',attributes=dict(id='player-progress',value='0')) as canvas:
             canvas += "player's progress bar"
        with body.tag('div',attributes=dict(id='time-info')) as timeInfo:
            timeInfo += '00:00'
        with body.tag('script', attributes=dict(src='assets/labelize.js')) as script:
            script+=""#script tag is not added without that trick

        return Html.html_template(head, body).to_raw_html(indent_size=2)

# script usage function
def usage():
    print('USAGE : labelize.py [inputDirectory] [outputDirectory]')

# script beginning
arguments = len(sys.argv) - 1
if(arguments != 2):
    usage()
    sys.exit(2)

inputDirectory = sys.argv[1]
outputDirectory = sys.argv[2]

def copyDirectory(src, dest):
    try:
        shutil.copytree(src, dest)
    except shutil.Error as e:
        print('Directory not copied. Error: %s' % e)
    except OSError as e:
        print('Directory not copied. Error: %s' % e)

#removes existing build directory if exists
if os.path.isdir(outputDirectory):
    shutil.rmtree(outputDirectory)

#copies source files in the build directory
copyDirectory(inputDirectory, 'build')

#copies assets in the build directory
copyDirectory('assets', outputDirectory + '/assets')

for root, dirs, files in os.walk(inputDirectory):
    trackFiles = []
    for f in files:
        if f.lower().endswith(('.mp3', '.wav', '.ogg')):
            trackFiles.append(f)

    td = TracksDir(trackFiles)
    f = open(outputDirectory + "/index.html","w+")
    f.write(td.toHTML())
    f.close()