from __future__ import division
import re
import ox
import item.models
import annotation.models
import user.models

def parse_notes(i, fps=29.97):
    u = user.models.User.objects.all()[0]
    text = i.data.get('summary', '')
    parts = text.split('<br>\n<br>\n')
    annotations = []
    offset = None
    for part in parts:
        m = re.compile('^((\d{2}):(\d{2}):(\d{2}):(\d{2})) +(.*)').findall(part)
        if m:
            tc, h, m, s, f, txt = m[0]
            seconds = int(h) * 60 * 60 + int(m) * 60 + int(s) + int(f)/fps
            if offset == None:
                offset = seconds - 60
            timecode = ox.format_timecode(seconds - offset)
            text = text.replace(tc, '<a href="/%s/%s">%s</a>' %(i.public_id, timecode, tc))
            if annotations:
                annotations[-1]['out'] = seconds - offset - 1/fps
            annotations.append({
                'in':  seconds - offset,
                'out':  -1,
                'value': txt
            })
    if annotations:
        annotations[-1]['out'] = i.sort.duration
    if text != i.data.get('summary', ''):
        i.data['summary'] = text
        i.save()
        for d in annotations:
            a = annotation.models.Annotation()
            a.item = i
            a.layer = 'publicnotes'
            a.start = d['in']
            a.end = d['out']
            a.value = d['value']
            a.user = u
            a.save()
    return text, annotations