#!/usr/bin/python3

from renderlib import *
from easing import *

# URL to Schedule-XML
scheduleUrl = 'https://summit2019.hotosm.org/schedule.xml'

def introFrames(args):
    frames = 4*fps
    for i in range(0, frames):
        yield (
            ('logo-artwork', 'style', 'opacity', 1),
            ('talk-metadata', 'style', 'opacity', 1),
        )

def outroFrames(args):
#fadein outro graphics
    frames = 2*fps
    for i in range(0, frames):
        yield(
            ('everything', 'style', 'opacity', "%.4f" % easeInQuad(i, 0.01, 1, frames)),
        )
    frames = 2*fps
    for i in range(0, frames):
        yield(
            ('everything', 'style', 'opacity', 1),
        )

def linearFade(step, start, end, steps):
    i = float(step)/steps
    return i * (end - start) + start

def pauseFrames(args):
        frames = int(3*fps) + 1
        for i in range(0, frames):
                yield (
                        ('logo', 'style', 'opacity', "%.4f" % linearFade(i, 0.0, 1.0, frames)),
                )
        frames = int(2*fps)
        for i in range(0, frames):
                yield (
                        ('logo', 'style', 'opacity', 1.0),
                )
        frames = int(3*fps)
        for i in range(0, frames):
                yield (
                        ('logo', 'style', 'opacity', "%.4f" % linearFade(i, 1.0, 0.0, frames)),
                )
        frames = int(2*fps)
        for i in range(0, frames):
                yield (
                        ('logo', 'style', 'opacity', 0),
                )

def debug():
    render('intro.svg',
        '../intro.ts',
        introFrames,
        {
            '$id': 7776,
            '$title': 'StageWar live!',
            '$subtitle': 'Metal Konzert',
            '$persons':  'www.stagewar.de'
        }
    )

    render('outro.svg',
        '../outro.ts',
        outroFrames
    )

    render('pause.svg',
        '../pause.ts',
        pauseFrames
    )


def tasks(queue, args, idlist, skiplist):
    # iterate over all events extracted from the schedule xml-export
    for event in events(scheduleUrl):
        if event['room'] not in ('Horsaal Ost', 'Horsaal West', 'Kleiner Horsaal'):
            print("skipping room %s (%s [%s])" % (event['room'], event['title'], event['id']))
            continue
        if event['day'] == "1":
            print("skipping id ({} [{}])".format(event["title"], event["id"]))
            continue
#        if not (idlist==[]):
#                if 000000 in idlist:
#                        print("skipping id (%s [%s])" % (event['title'], event['id']))
#                        continue
#                if int(event['id']) not in idlist:
#                        print("skipping id (%s [%s])" % (event['title'], event['id']))
#                        continue

        # generate a task description and put them into the queue
        queue.put(Rendertask(
            infile = 'intro.svg',
            outfile = str(event['id'])+".ts",
            sequence = introFrames,
            parameters = {
                '$id': event['id'],
                '$title': event['title'],
                '$subtitle': event['subtitle'],
                '$persons': event['personnames']
            }
        ))

    # place a task for the outro into the queue
    if not "out" in skiplist:
        queue.put(Rendertask(
            infile = 'outro.svg',
            outfile = 'outro.ts',
            sequence = outroFrames
         ))

    # place the pause-sequence into the queue
    if not "pause" in skiplist:
        queue.put(Rendertask(
            infile = 'pause.svg',
            outfile = 'pause.ts',
            sequence = pauseFrames
        ))