from django.urls.base import reverse
from .models import Project


def task_link_filter(text):
    render_txt = ''
    while len(text) > 0:
        try:
            pos = text.index('[[task:')
        except ValueError:
            pos = len(text)
        render_txt += text[:pos]
        text = text[pos + 7:]
        if len(text):
            pos = text.index(']]')
            try:
                task_id = int(text[:pos])
            except ValueError:
                render_txt += "[[task:" + text[:pos + 2]
            else:
                render_txt += '[[%s|#%d]]' % (reverse('patt-taskview', kwargs={'task_id': task_id}), task_id)
            text = text[pos + 2:]
    return render_txt


def tasklist_link_filter(text):
    render_txt = ''
    while len(text) > 0:
        try:
            pos = text.index('[[tasklist:')
        except ValueError:
            pos = len(text)
        render_txt += text[:pos]
        text = text[pos + 11:]
        if len(text):
            pos = text.index(']]')
            try:
                project_id = int(text[:pos])
            except ValueError:
                render_txt += "[[tasklist:" + text[:pos + 2]
            else:
                p = Project.objects.get(id=project_id)
                render_txt += '[[%s|%s]]' % (reverse('patt-tasklist-prj', kwargs={'project_id': project_id}), p.name)
            text = text[pos + 2:]
    return render_txt