#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
import sys, subprocess
from path import path

MENUS = path('/home/tony/Desktop/git/generate/menus')
#
def getTag(txt, tag):
    start = txt.find(tag)+len(tag)+1
    end = txt[start:].find(' ')+start
    if end < start:
        end = len(txt)
    return txt[start:end]    

def getImageData(image):
    #parse image:format: 1_yyyy.png height xxx width yyy left
    #get image number
    end = image.find('_')
    imgno = image[:end]
    #get image name
    start = image.find('_')
    end = image.find(' ')
    name = image[start+1:end]
    #get height
    height = getTag(image, 'height')
    width = getTag(image, 'width')
    if 'left' in image:
        ifloat = 'left'
    elif 'right'in image:
        ifloat = 'right'
    else:
         ifloat = None
    return (imgno, name, height, width, ifloat)

def makeQuiz(screen):
    #scan for quiz comments
    tag = '<!--Q'
    endTag = '-->'
    quiz = []
    if tag+endTag in screen:
        return True, quiz
    while tag in screen:
        #comment = <!--Q:'question' A:'answer'-->
        start = screen.find(tag)
        end = screen.find(endTag)
        question = screen[start+4:end]
        if question:
            quiz.append(question)
        screen = screen[end+len(endTag):]
    return False, quiz


def findImages(screen):
    #process imagelist
    imageList = []
    tag = '<!--I'
    endTag = '-->'
    while tag in screen:
        start = screen.find(tag)
        end = screen.find(endTag)
        comment = screen[start+len(tag):end]
        if len(comment) > 0:
            imageList.append(comment)
        screen = screen[end+len(endTag):]
    return imageList


def findAudio(screen):
    #process audiolist
    audioList = []
    tag = '<!--'
    tags = "ARSXH"
    endTag = '-->'
    while tag in screen:
        start = screen.find(tag)
        end = screen.find(endTag)
        comment = screen[start+len(tag):end]
        if len(comment) > 0 and comment[0] in tags:
            audioList.append(comment)
        screen = screen[end+len(endTag):]
    return audioList

def generate_image(imageList):
    #format: nn_img1.png height:xxx width:yyy left
    txtout = ''
    for line in imageList:
        (imgno, name, height, width, ifloat) = getImageData(line)
        real = path(name).namebase
        txtout = txtout + "      $('#I" + imgno + "')\n"
        if ifloat:
            txtout = txtout + "           .addClass('image_"+ifloat+"')\n"            
        #txtout = txtout + "           .append(karma.createImg('" + real + "'))\n"
        txtout += "      $('<img>',{\n"
        txtout += "         src:host+pth+'/"+name+"'\n    })\n    .appendTo('#I"+imgno+"')\n"
    return txtout

def generate_load(pth):
    lesson = ''
    lesson = lesson + "  $('<div id="
    lesson = lesson + '"txtMain"/>'
    lesson = lesson + "')\n"
    lesson = lesson + "     .appendTo('#content')\n"
    lesson = lesson + "     .load(host+'cgi-bin/getFile.py',\n"
    if screen == 0:
        lesson = lesson + "     {'filename':" + pth + "/a.txt'},\n"
    else:
        lesson = lesson + "     {'filename':" + pth + "/a" + str(screen) + ".txt'},\n"
    lesson = lesson +     "     function(){\n"
    return lesson

def generate_audio(audiolist):
    #format A1_clip.ogg or R1_clip.ogg or X1_clip.ogg or S1_clip.txt or H1_clip.ogg
    txtout = ''
    for line in audiolist:
        typ = line[0]
        pos = line.find('_')
        clip = line[pos+1:]
        if typ == 'A':
            txtout += "    playAudio(pth+'"+clip+"')\n"
        elif typ == 'X':
            txtout += "    playXoAudio(pth+'"+clip+"')\n"
        elif typ == 'H':
            txtout += "    playHelp(pth+'"+clip+"')\n"
        elif typ == 'S' and line[1] != 'G':
            txtout += "    sayText(pth+'"+clip+"')\n"
        elif typ == 'R':
            txtout += "    recordAudio(pth+'"+clip+"')\n"
    return txtout

def generateLessonCSS(imageList):
    txtout = ''
    for image in imageList:
        (imgno, name, height, width, ifloat) = getImageData(image)
        insert = "#I"+imgno+"{height:"+height+"px; width:"+width+"px; }\n\n"
        txtout += insert
    return txtout

def generateLessonKarma(imageList):
    txtout = 'function lesson_karma(){\n    return Karma({\n        image:[\n'
    for image in imageList:
        (imgno, name, height, width, float) = getImageData(image)
        txtout += "{name:'"+path(name).namebase+"', file:'"+name+"'},\n"
    txtout += '              ],\n       audio:[\n        ]})};\n'
    return txtout

def generateQuiz(activity, quizList):
    for i in range(len(quizList)):
        quiz = quizList[i]
        if len(quizList) == 1:
            txtout = 'var quiz = {\n'
        else:
            txtout = 'var quiz'+str(i+1)+' = {\n'
        tflist = []
        mclist = []
        salist = []
        #we need to make a list of the questions by type: multilist, tf, fill
        #note: we should have cloze and sa should accept variant answers (e.g a/b where a, b are regular expressions
        for question in quiz:
            if "S:" in question:
                mclist.append(question)
            elif "T:" in question or 'F:' in question:
                tflist.append(question) 
            else:
                salist.append(question)
        if mclist:
            txtout += '    multiList:[\n'
            for q in mclist:
                #process question and add to txtout
                apos = q.find('A:')
                spos = q.find('S:')
                ans = 'ans: ' + q[apos+2:spos] + ', '
                sel = 'ansSel: [' + q[spos+2:] + ']'
                ques = '{ques: ' + q[:apos] + ', '
                txtout += ques + ans + sel +  '},\n'
            txtout += '],\n'
        if tflist:
            txtout += '    tf:[\n'
            for q in tflist:
               #process questionstring and add to quiztxt
               apos1 = q.find('T:')
               apos2 = q.find('F:')
               ans = 'ans:' + q[apos1+2:apos2] + ', '
               sel = 'ansSel:' + q[apos2+2:]
               ques = '{ques: ' + q[:apos1] + ', '
               txtout += ques + ans + sel + '},\n'
            txtout += '],\n'
        if salist:
            txtout += '    fill:[\n'
            for q in salist:
                #process question string and add to quiztxt
                apos = q.find('A:')
                ans = 'ans: ' + q[apos + 2:]
                ques = '{ques: ' + q[2:apos] + ','
                txtout += ques + ans + '},\n'
            txtout += '    ]\n'
        txtout += '};\n\n'
    txtout += 'var options = {\n'
    txtout += "    title: '" + activity.namebase + "',\n" 
    txtout += '    random: false,\n'
    txtout += '    allrandom: false,\n'
    txtout += '};\n'
    return txtout

def generateLesson(srcpth, pth, screens, imageList, audioList, quiz):
    #generate lesson.js
    tag = '<!--SG-->'
    txtout = ''
    lessonpth = srcpth / 'lesson.js'
    if lessonpth.exists():
        fin = open(lessonpth, 'r')
        txtout += fin.read()
        txtout += '\n'
        fin.close()
    if len(screens) == 1:
        #single screen
        txtout += 'function initialize(karma) {\n'
        txtout += "  host = 'http://localhost:8008/'\n"
        txtout += "  pth='"+pth+"/'\n"
        txtout += "  if(mode=='Faculty'){\n    $('#ĺinkEdit').addClass('linkEdit');\n"
        txtout += "  }else{\n"
        txtout += "    $('#linkApply')\n      .addClass('linkApply')\n      .attr('score','70');\n  }\n"
        txtout += "  $('<div id="
        txtout += '"txtMain"/>'
        txtout += "')\n"
        txtout += "     .appendTo('#content')\n"
        txtout += "     .load(host+'cgi-bin/getFile.py',\n"
        txtout += "     {'filename':pth+'a.txt'},\n"
        txtout +=     "     function(){\n"
        if imageList and imageList[0]:
            txtout += generate_image(imageList[0])
        if audioList and audioList[0]:
            txtout += generate_audio(audioList[0])
        txtout += '  });\n'
        if tag in screens[0]:
            txtout += "  $('#linkStart')\n"
            txtout += "    .addClass('linkStart')\n"
            txtout += "    .click(function(){startGame(karma);\n"
            txtout += "  });\n" 
        txtout += '};\n\n'
        if not 'startGame' in txtout:
            txtout += 'function startGame(karma) {\n'
            if quiz:
                txtout += "    $('#linkStart').addClass('linkStart');\n"
                txtout += "    $('<div id=" + '"quizArea"/>' + "')\n"
                txtout += '           .appendTo("#content")\n'
                txtout += '    $("#quizArea")\n'
                txtout += '        .jQuizMe(quiz, options)\n' 
            txtout += '};\n\n'
        txtout += 'setUpLesson(initialize, startGame);\n'
    else:
        #multiple screen
        txtout += 'var currentScreen;\n\n'
        for i in range(len(screens)):
            screen = i+1
            txtout += 'function generateScreen'+str(screen)+'(karma) {\n'
            txtout += '  currentScreen = ' + str(i+1) + '\n'
            txtout += "  host = 'http://localhost:8008/'\n"
            txtout += "  pth='"+pth+"/'\n"
            txtout += "  if(mode=='Faculty'){\n    $('#ĺinkEdit').addClass('linkEdit');\n"
            txtout += "  }else{\n"
            txtout += "    $('#linkApply')\n      .addClass('linkApply')\n      .attr('score','70');\n  }\n"
            txtout += "  $('<div id="
            txtout += '"txtMain"/>'
            txtout += "')\n"
            txtout += "     .appendTo('#content')\n"
            txtout += "     .load(host+'cgi-bin/getFile.py',\n"
            txtout += "     {'filename':pth+'a" + str(screen) + ".txt'},\n"
            txtout +=     "     function(){\n"
            if imageList[i]:
                txtout += generate_image(imageList[i])
            txtout += '    });\n'
            if audioList[i]:
                txtout += generate_audio(audioList[i])
            if tag in screens[i]:
                txtout += "    $('#linkStart')\n"
                txtout += "      .addClass('linkStart')\n"
                txtout += "      .click(function(){startGame(karma);});\n" 
            txtout += '};\n'
        txtout += '\n'
        txtout += 'function initialize() {};\n\n'
        if not 'startGame' in txtout:
            txtout += 'function startGame(karma){\n'
            if quiz:
                if not srcpth / 'quiz.js':
                    txtout += "    url = window.location+'';\n"
                    txtout += "    tmp = url.split('/');\n"
                    txtout += "    tmp.pop();\n"
                    txtout += "    tmp.shift();\n"
                    txtout += "    tmp.shift();\n"
                    txtout += "    tmp.shift();\n"
                    txtout += "    pth = tmp.join('/');\n"
                    txtout += "    $('div id = " + '"workArea"'+"'/>)\n"
                    txtout += "    .load(host+'cgi/writeQuiz.py',\n"
                    txtout += "    {'activity':pth,'text':quiztxt});\n"
                txtout += "    $('#linkStart').addClass('linkStart');\n"
                txtout += "    $('<div id=" + '"quizArea"/>' + "')\n"
                txtout += '           .appendTo("#content")\n'
                txtout += '    $("#quizArea")\n'
                txtout += '        .jQuizMe(quiz[currentScreen], options)\n' 
            txtout += '};\n\n'
        txtout += '\nsetUpMultiScreenLesson([\n'
        for i in range(len(screens)):
            txtout += '    generateScreen' + str(i+1) + ',\n'
        txtout += ']);\n'
    return txtout

def makeScreens(txt):
    screens = []
    tag = '<hr />'
    while tag in txt:
        pos = txt.find(tag)
        screen = txt[:pos]
        txt = txt[pos+len(tag):]
        screens.append(screen)
    if len(txt)>0:
        screens.append(txt)
    return screens

def addSpans(screen):
    tag = '<!--I'
    endTag = '-->'
    start = 0
    while screen[start:].find(tag)>-1:
        pos1 = screen[start:].find(tag)
        pos2 = screen[start:].find(endTag)
        end = start + pos2
        comment = screen[start+pos1+len(tag):end]
        if len(comment) > 0:
            imgno, name, height, width, ifloat = getImageData(comment)
            span = "<span id = 'I" + imgno + "'></span>" 
            screen = screen[:end+len(endTag)] + span + screen[end+len(endTag):]
            end = end + len(span)
        start = end + len(endTag)
    return screen

def generateBasicLesson(actpth, srcpth, dstpth):
    #read source.txt
    txtpth = srcpth / 'source.txt'
    fin = open(txtpth,'r')
    txt = fin.read()
    fin.close()
    #copy index.html to dst
    subprocess.call('cp ' + MENUS / 'index.html ' + dstpth, shell=True)
    #copy source.txt to dst
    subprocess.call('cp ' + srcpth / 'source.txt ' + dstpth, shell=True)
    #copy assets to dst
    images = path(srcpth).files('*.png')
    for image in images:
        subprocess.call('cp ' + image + ' ' + dstpth, shell=True)
    images = path(srcpth).files('*.ogg')
    for image in images: 
        subprocess.call('cp ' + image + ' ' + dstpth, shell=True)
    #we don't copy gif because Karma doesn't handle them - they need to be converted to png
    #subprocess.call('cp ' + srcpth / '*.gif ' + dstpth, shell = True)
    #scan source text returning list of screens (a*.txt)
    screens = makeScreens(txt)
    quiz = []
    imageList = []
    audioList = []
    quizFlag = False #True when activity contains generated quiz   
    for i in range(len(screens)):
        screen = screens[i]
        flag, quizText = makeQuiz(screen)
        if flag:
            quizFlag = True
        if quizText:
            quiz.append(quizText)
        imageList.append(findImages(screen))
        audioList.append(findAudio(screen))
        #write screen
        #but first add spans for images
        screen = addSpans(screen)
        if len(screens) == 1:
            fout = open(dstpth / 'a.txt','w')
        else:
            fout = open(dstpth / 'a' + str(i+1) + '.txt','w')
        fout.write(screen)
        fout.close()
    #create lesson.js
    txtout = generateLesson(srcpth, actpth, screens, imageList, audioList, quiz)
    fout = open(dstpth / 'lesson.js','w')
    fout.write(txtout)
    fout.close()
    if imageList:
        totalList = []
        for list in imageList:
            for image in list:
                totalList.append(image)
        #create lesson-karma.js
        txtout = generateLessonKarma(totalList)
        fout = open(dstpth / 'lesson-karma.js','w')
        fout.write(txtout)
        fout.close()
        #create lesson.css
        txtout = generateLessonCSS(totalList)
        fout = open(dstpth / 'lesson.css','w')
        fout.write(txtout)
        fout.close()
    if quiz and not quizFlag:
        #create quiz.js
        txtout = generateQuiz(dstpth, quiz)
        fout = open(dstpth / 'quiz.js','w')
        fout.write(txtout)
        fout.close()