plomlompom.com Git - misc/blob - todo.py

   1 from plomlib import PlomDB, run_server, PlomHandler, PlomException
   2 import json
   3 from uuid import uuid4
   4 from datetime import datetime, timedelta
   5 from urllib.parse import parse_qs
   6 from jinja2 import Template
   7 from urllib.parse import urlparse
   8 db_path = '/home/plom/org/todo_new.json'
   9 # db_path = '/home/plom/public_repos/misc/todo_new.json'
  10 server_port = 8082
  11 DATE_FORMAT = '%Y-%m-%d'
  12
  13 html_head = """
  14 <style>
  15 body { font-family: monospace; }
  16 table.alternating tr:nth-child(even) {
  17     background-color: #f2f2f2;
  18 }
  19 table.alternating tr:nth-child(odd) {
  20     background-color: #ffffff;
  21 }
  22 th, td { text-align: left; vertical_align: top; border-bottom: 1px dotted black; }
  23 td details { display: inline }
  24 td.input { width: 100%; }
  25 td.number { text-align: right; }
  26 td.checkbox { width: 0.1em; height: 0.1em; padding: 0em; text-align: center; }
  27 tr.week_row td { height: 0.1em; border: 0px; background-color: black; }
  28 tr.day_row td { background-color: #f2f2f2 }
  29 input { font-family: monospace; padding: 0em; margin: 0em; }
  30 input[type="number"] { font-family: monospace; text-align: right; }
  31 input[type="text"] { width: 100%; box-sizing: border-box; }
  32 </style>
  33 <body>
  34 tasks: <a href="{{db.prefix}}/tasks">list</a> <a href="{{db.prefix}}/add_task">add</a> | day:
  35 <a href="{{db.prefix}}/day?hide_unchosen=0&hide_done=0">choose tasks</a>
  36 <a href="{{db.prefix}}/day?hide_unchosen=1&hide_done=1">do tasks</a>
  37 | <a href="{{db.prefix}}/calendar">calendar</a>
  38 | <a href="{{db.prefix}}/unset_cookie">unset cookie</a>
  39 <hr />
  40 """
  41 form_footer = '\n</form>'
  42 form_header_tmpl = """
  43 <form action="{{action|e}}" method="POST">
  44 """
  45 calendar_tmpl = """
  46 <p>
  47 from: <input name="start" {% if start_date %}value="{{ start_date }}"{% endif %} placeholder="{{ today }}" />
  48 to: <input name="end" {% if end_date %}value="{{ end_date }}"{% endif %} placeholder="2030-12-31" />
  49 <input type="submit" value="OK" />
  50 </p>
  51 <table>
  52 {% for date, day in days.items() | sort() %}
  53 {% if day.weekday == "Mo" %}<tr class="week_row"><td colspan=3></td></tr>{% endif %}
  54 <tr class="day_row"><td colspan=3><a href="{{db.prefix}}/day?selected_date={{date}}&hide_unchosen=1">{{ day.weekday }} {{ date }}</a> |{{ '%04.1f' % day.todos_sum|round(2) }}| {{ day.comment|e }}</td></tr>
  55 {% for task, todo in day.todos.items() | sort(attribute='1.title', reverse=True)  %}
  56 {% if todo.visible %}
  57 <tr><td class="checkbox">{% if todo.done %}✓{% else %}&nbsp;&nbsp;{% endif %}</td><td><a href="{{db.prefix}}/todo?task={{ todo.task.id_ }}&date={{ date }}">{%if "cancelled" in todo.tags%}<s>{% endif %}{% if "deadline" in todo.tags %}DEADLINE: {% endif %}{{ todo.title|e }}{%if "cancelled" in todo.tags%}</s>{% endif %}</a></td><td>{{ todo.comment|e }}</td></tr>
  58 {% endif %}
  59 {% endfor %}
  60 {% endfor %}
  61 </table>
  62 """
  63 todo_tmpl = """
  64 <input type="hidden" name="task_uuid" value="{{ todo.task.id_ }}" />
  65 <input type="hidden" name="date" value="{{ todo.day.date }}" />
  66 <table>
  67 <tr><th>task</th><td><a href="{{db.prefix}}/task?id={{ todo.task.id_ }}">{{ todo.task.title|e }}</a></td></tr>
  68 <tr><th>default weight</th><td>{{ todo.default_weight }}</td></tr>
  69 <tr><th>day</th><td>{{ todo.day.date }}</td></tr>
  70 <tr><th>day weight</th><td class="input"><input type="number" name="day_weight" step=0.1 size=8 value="{{ todo.day_weight }}" /></td></tr>
  71 <tr><th>comment</th><td class="input"><input type="text" name="comment" value="{{todo.comment|e}}" /></td></tr>
  72 <tr><th>done</th><td class="input"><input type="checkbox" name="done" {% if todo.done %}checked{% endif %}/></td></tr>
  73 <tr><th>day tags</th><td class="input"><input name="day_tags" type="text" value="{{ todo.day_tags_joined|e }}" ></td></tr>
  74 </table>
  75 <input type="submit" value="update" />
  76 """
  77 task_tmpl = """
  78 <input type="hidden" name="id" value="{{ task.id_ }}" />
  79 <table>
  80 <tr><th>title</th><td class="input"><input name="title" type="text" value="{{ task.title|e }}" /><details><summary>history</summary><ul>{% for k,v in task.title_history.items() | sort(attribute='0', reverse=True) %}<li>{{ k }}: {{ v|e }}{% endfor %}</ul></details></td></tr>
  81 <tr><th>default weight</th><td class="input"><input type="number" name="default_weight" value="{{ task.default_weight }}" step=0.1 size=8 required /><details><summary>history</summary><ul>{% for k,v in task.default_weight_history.items() | sort(attribute='0', reverse=True) %}<li>{{ k }}: {{ v|e }}{% endfor %}</ul></details></td></tr>
  82 <tr><th>tags</th><td class="input"><input name="tags" type="text" value="{{ task.tags_joined|e }}" ><details><summary>history</summary><ul>{% for k,v in task.tags_history.items() | sort(attribute='0', reverse=True) %}<li>{{ k }}: {{ v|e }}{% endfor %}</ul></details></td></tr>
  83 </table>
  84 <input type="submit" value="update" />
  85 """
  86 day_tmpl = """
  87 <p>
  88 <input name="hide_unchosen" type="checkbox" {% if db.hide_unchosen %}checked{% endif %} /> hide unchosen <input name="hide_done" type="checkbox" {% if db.hide_done %}checked{% endif %} /> hide done |
  89 <a href="{{db.prefix}}/day?selected_date={{prev_date}}">prev</a> <a href="{{db.prefix}}/day?selected_date={{next_date}}">next</a> |
  90 <input type="hidden" name="original_selected_date" value="{{ db.selected_date }}" />
  91 date: <input name="new_selected_date" value="{{ db.selected_date }}" size=10 /> |
  92 {{ db.selected_day.todos_sum|round(2) }} ({{ db.selected_day.todos_sum2|round(2)}}) |
  93 comment: <input name="day_comment" value="{{ db.selected_day.comment|e }}">
  94 </p>
  95
  96 <table class="alternating">
  97 <tr><th>task</th><th class="checkbox">choose?</th><th class="checkbox">done?</th><th>weight</th><th>day tags</th><th>comment</th></tr>
  98 {% for uuid, t in db.tasks.items() | sort(attribute='1.title') %}
  99 {% if t.visible and (uuid not in db.selected_day.todos.keys() or db.selected_day.todos[uuid].visible) %}
 100 <tr>
 101 <input name="t_uuid" value="{{ uuid }}" type="hidden" >
 102 <td><details><summary>] <a href="{{db.prefix}}/task?id={{ uuid }}" />{{ t.current_title|e }}</a></summary>tags: {% for tag in t.tags | sort %}<a href="{{db.prefix}}/day?t_and={{tag|e}}">{{ tag }}</a> {% endfor %}</details></td>
 103 <td class="checkbox"><input name="choose" type="checkbox" value="{{ uuid }}" {% if uuid in db.selected_day.todos.keys() %}checked{% endif %} ></td>
 104 <td class="checkbox"><input name="done" type="checkbox" value="{{ uuid }}" {% if uuid in db.selected_day.todos.keys() and db.selected_day.todos[uuid].done %}checked{% endif %} ></td>
 105 <td class="checkbox"><input name="day_weight" type="number" step=0.1 size=8 value="{% if uuid in db.selected_day.todos.keys() and db.selected_day.todos[uuid].day_weight %}{{ db.selected_day.todos[uuid].day_weight }}{% endif %}" placeholder={{ t.current_default_weight }} ></td>
 106 <td type="input"><input name="day_tags" type="text" value="{% if uuid in db.selected_day.todos.keys() %}{{ db.selected_day.todos[uuid].day_tags_joined|e }}{% endif %}" ></td>
 107 <td type="input"><input name="todo_comment" type="text" value="{% if uuid in db.selected_day.todos.keys() %}{{ db.selected_day.todos[uuid].comment|e }}{% endif %}" ></td>
 108 </tr>
 109 {% endif %}
 110 {% endfor %}
 111 </table>
 112 <input type="submit" value="OK">
 113 """
 114 tag_filters_tmpl = """
 115 <p style="float: left; margin-right: 1em;">
 116 <input type="submit" value="OK">
 117 </p>
 118 <p>
 119 mandatory tags:
 120 {% for and_filter in db.t_filter_and %}
 121 <select name="t_and">
 122 <option></option>
 123 {% for tag in db.t_tags | sort %}
 124 <option value="{{tag|e}}" {% if and_filter == tag %}selected{% endif %}>{{tag|e}}</option>
 125 {% endfor %}
 126 </select>
 127 {% endfor %}
 128 <select name="t_and">
 129 <option></option>
 130 {% for tag in db.t_tags | sort %}
 131 <option value="{{tag|e}}">{{tag|e}}</option>
 132 {% endfor %}
 133 </select>
 134 <br />
 135 forbidden tags:
 136 {% for not_filter in db.t_filter_not %}
 137 <select name="t_not">
 138 <option></option>
 139 {% for tag in db.t_tags | sort %}
 140 <option value="{{tag|e}}" {% if not_filter == tag %}selected{% endif %}>{{tag|e}}</option>
 141 {% endfor %}
 142 </select>
 143 {% endfor %}
 144 <select name="t_not">
 145 <option></option>
 146 {% for tag in db.t_tags | sort %}
 147 <option value="{{tag|e}}">{{tag|e}}</option>
 148 {% endfor %}
 149 </select>
 150 </p>
 151 """
 152 tasks_tmpl = """
 153 <table class="alternating">
 154 <tr><th>default<br />weight</th><th>task</th><th>tags</th></tr>
 155 {% for uuid, t in db.tasks.items() | sort(attribute='1.title') %}
 156 {% if t.visible %}
 157 <tr>
 158 <td class="number">{{ t.default_weight }}</a></td>
 159 <td><a href="{{db.prefix}}/task?id={{ uuid }}" />{{ t.title|e }}</a></td>
 160 <td>{% for tag in t.tags | sort %}<a href="{{db.prefix}}/tags?t_and={{tag|e}}">{{ tag }}</a> {% endfor %}</td>
 161 {% endif %}
 162 {% endfor %}
 163 </table>
 164 """
 165
 166 class Task:
 167
 168     def __init__(self, db, title_history=None, tags_history=None, default_weight_history=None):
 169         self.db = db
 170         self.title_history = title_history if title_history else {}
 171         self.tags_history = tags_history if tags_history else {}
 172         self.default_weight_history = default_weight_history if default_weight_history else {}
 173         self.visible = True
 174
 175     def _set_with_history(self, history, value):
 176         keys = sorted(history.keys())
 177         if len(history) == 0 or value != history[keys[-1]]:
 178             history[str(datetime.now())[:19]] = value
 179
 180     def _last_of_history(self, history, default):
 181         keys = sorted(history.keys())
 182         return default if 0 == len(history) else history[keys[-1]]
 183
 184     @classmethod
 185     def from_dict(cls, db, d):
 186         return cls(
 187                 db,
 188                 d['title_history'],
 189                 {k: set(v) for k, v in d['tags_history'].items()},
 190                 d['default_weight_history'])
 191
 192     @property
 193     def default_weight(self):
 194         return self._last_of_history(self.default_weight_history, 1)
 195
 196     @default_weight.setter
 197     def default_weight(self, default_weight):
 198         self._set_with_history(self.default_weight_history, default_weight)
 199
 200     def default_weight_at(self, queried_date):
 201         ret = self.default_weight_history[sorted(self.default_weight_history.keys())[0]]
 202         for date_key, default_weight in self.default_weight_history.items():
 203             if date_key > f'{queried_date} 23:59:59':
 204                 break
 205             ret = default_weight
 206         return ret
 207
 208     @property
 209     def current_default_weight(self):
 210         return self.default_weight_at(self.db.selected_date)
 211
 212     @property
 213     def title(self):
 214         return self._last_of_history(self.title_history, '')
 215
 216     @title.setter
 217     def title(self, title):
 218         self._set_with_history(self.title_history, title)
 219
 220     def title_at(self, queried_date):
 221         ret = self.title_history[sorted(self.title_history.keys())[0]]
 222         for date_key, title in self.title_history.items():
 223             if date_key > f'{queried_date} 23:59:59':
 224                 break
 225             ret = title
 226         return ret
 227
 228     @property
 229     def current_title(self):
 230         return self.title_at(self.db.selected_date)
 231
 232     @property
 233     def tags(self):
 234         return self._last_of_history(self.tags_history, set())
 235
 236     @tags.setter
 237     def tags(self, tags):
 238         self._set_with_history(self.tags_history, set(tags))
 239
 240     @property
 241     def tags_joined(self):
 242         return ';'.join(sorted(list(self.tags)))
 243
 244     @tags_joined.setter
 245     def tags_joined(self, tags_string):
 246         tags = set()
 247         for tag in [tag.strip() for tag in tags_string.split(';') if tag.strip() != '']:
 248             tags.add(tag)
 249         self.tags = tags
 250
 251     def to_dict(self):
 252         return {
 253             'title_history': self.title_history,
 254             'tags_history': {k: list(v) for k,v in self.tags_history.items()},
 255             'default_weight_history': self.default_weight_history}
 256
 257     @property
 258     def id_(self):
 259         for k, v in self.db.tasks.items():
 260             if v == self:
 261                 return k
 262
 263
 264 class Day:
 265
 266     def __init__(self, db, todos=None, comment=''):
 267         self.db = db
 268         self.todos = todos if todos else {}
 269         self.comment = comment
 270         self.archived = True
 271
 272     @classmethod
 273     def from_dict(cls, db, d):
 274         todos = {}
 275         comment = d['comment'] if 'comment' in d.keys() else ''
 276         day = cls(db, todos, comment)
 277         for uuid, todo_dict in d['todos'].items():
 278             day.add_todo(uuid, todo_dict)
 279         return day
 280
 281     def to_dict(self):
 282         d = {'comment': self.comment, 'todos': {}}
 283         for task_uuid, todo in self.todos.items():
 284             d['todos'][task_uuid] = todo.to_dict()
 285         return d
 286
 287     def add_todo(self, id_, dict_source=None):
 288         self.todos[id_] = Todo.from_dict(self, dict_source) if dict_source else Todo(self)
 289         return self.todos[id_]
 290
 291     def _todos_sum(self, include_undone=False):
 292         s = 0
 293         for todo in [todo for todo in self.todos.values() if todo.done]:
 294             s += todo.weight
 295         if include_undone:
 296             for todo in [todo for todo in self.todos.values() if not todo.done]:
 297                 s += todo.day_weight if todo.day_weight else 0
 298         return s
 299
 300     @property
 301     def todos_sum(self):
 302         return self._todos_sum()
 303
 304     @property
 305     def todos_sum2(self):
 306         return self._todos_sum(True)
 307
 308     @property
 309     def date(self):
 310         for k, v in self.db.days.items():
 311             if v == self:
 312                 return k
 313
 314 class Todo:
 315
 316     def __init__(self, day, done=False, day_weight=None, comment='', day_tags=None):
 317         self.day = day
 318         self.done = done
 319         self.day_weight = day_weight
 320         self.comment = comment
 321         self.day_tags = day_tags if day_tags else set()
 322
 323     @classmethod
 324     def from_dict(cls, day, d):
 325         return cls(day, d['done'], d['day_weight'], d['comment'], set(d['day_tags']))
 326
 327     def to_dict(self):
 328         return {'done': self.done, 'day_weight': self.day_weight, 'comment': self.comment, 'day_tags': list(self.day_tags)}
 329
 330     @property
 331     def default_weight(self):
 332         return self.task.default_weight_at(self.day.date)
 333
 334     @property
 335     def weight(self):
 336         if self.day_weight:
 337             return self.day_weight
 338         else:
 339             return self.day_weight if self.day_weight else self.default_weight
 340
 341     @property
 342     def task(self):
 343         for k, v in self.day.todos.items():
 344             if v == self:
 345                 return self.day.db.tasks[k]
 346
 347     @property
 348     def title(self):
 349         return self.task.title_at(self.day.date)
 350
 351     @property
 352     def day_tags_joined(self):
 353         return ';'.join(sorted(list(self.day_tags)))
 354
 355     @day_tags_joined.setter
 356     def day_tags_joined(self, tags_string):
 357         tags = set()
 358         for tag in [tag.strip() for tag in tags_string.split(';') if tag.strip() != '']:
 359             tags.add(tag)
 360         self.day_tags = tags
 361
 362     @property
 363     def tags(self):
 364         return self.day_tags | self.task.tags
 365
 366
 367 class TodoDB(PlomDB):
 368
 369     def __init__(self, prefix, selected_date=None, t_filter_and = None, t_filter_not = None, hide_unchosen=False, hide_done=False):
 370         self.prefix = prefix
 371         self.selected_date = selected_date if selected_date else str(datetime.now())[:10]
 372         self.t_filter_and = t_filter_and if t_filter_and else []
 373         self.t_filter_not = t_filter_not if t_filter_not else []
 374         self.hide_unchosen = hide_unchosen
 375         self.hide_done = hide_done
 376         self.days = {}
 377         self.tasks = {}
 378         self.t_tags = set()
 379         super().__init__(db_path)
 380
 381     def read_db_file(self, f):
 382         d = json.load(f)
 383         for date, day_dict in d['days'].items():
 384             self.days[date] = self.add_day(dict_source=day_dict)
 385         for day in self.days.values():
 386             for todo in day.todos.values():
 387                 for tag in todo.day_tags:
 388                     self.t_tags.add(tag)
 389         for uuid, t_dict in d['tasks'].items():
 390             t = self.add_task(id_=uuid, dict_source=t_dict)
 391             for tag in t.tags:
 392                 self.t_tags.add(tag)
 393         self.set_visibilities()
 394
 395     def set_visibilities(self):
 396         for uuid, t in self.tasks.items():
 397             t.visible = len([tag for tag in self.t_filter_and if not tag in t.tags]) == 0\
 398                     and len([tag for tag in self.t_filter_not if tag in t.tags]) == 0\
 399                     and ((not self.hide_unchosen) or uuid in self.selected_day.todos.keys())
 400         for day in self.days.values():
 401             for todo in day.todos.values():
 402                 todo.visible = len([tag for tag in self.t_filter_and if not tag in todo.day_tags | todo.task.tags ]) == 0\
 403                     and len([tag for tag in self.t_filter_not if tag in todo.day_tags | todo.task.tags ]) == 0\
 404                     and ((not self.hide_done) or (not todo.done))
 405
 406     def to_dict(self):
 407         d = {
 408                 't_filter_and': self.t_filter_and,
 409                 't_filter_not': self.t_filter_not,
 410                 'tasks': {},
 411                 'days': {}
 412         }
 413         for uuid, t in self.tasks.items():
 414              d['tasks'][uuid] = t.to_dict()
 415         for date, day in self.days.items():
 416             d['days'][date] = day.to_dict()
 417         return d
 418
 419     @property
 420     def selected_day(self):
 421         if not self.selected_date in self.days.keys():
 422             self.days[self.selected_date] = self.add_day()
 423         return self.days[self.selected_date]
 424
 425     def change_selected_days_date(self, new_date):
 426         if new_date in self.days.keys():
 427             raise PlomException('cannot use same date twice')
 428         else:
 429             self.days[new_date] = self.selected_day
 430             del self.days[self.selected_date]
 431             self.selected_date = new_date
 432
 433     def write(self):
 434         dates_to_purge = []
 435         for date, day in self.days.items():
 436             if len(day.todos) == 0 and len(day.comment) == 0:
 437                 dates_to_purge += [date]
 438         for date in dates_to_purge:
 439             del self.days[date]
 440         self.write_text_to_db(json.dumps(self.to_dict()))
 441
 442     def add_task(self, id_=None, dict_source=None, return_id=False):
 443         t = Task.from_dict(self, dict_source) if dict_source else Task(self)
 444         id_ = id_ if id_ else str(uuid4())
 445         self.tasks[id_] = t
 446         if return_id:
 447             return id_, t
 448         else:
 449             return t
 450
 451     def add_day(self, dict_source=None):
 452         return Day.from_dict(self, dict_source) if dict_source else Day(self)
 453
 454     def show_day(self):
 455         current_date = datetime.strptime(self.selected_date, DATE_FORMAT)
 456         prev_date = current_date - timedelta(days=1)
 457         prev_date_str = prev_date.strftime(DATE_FORMAT)
 458         next_date = current_date + timedelta(days=1)
 459         next_date_str = next_date.strftime(DATE_FORMAT)
 460         return Template(form_header_tmpl + tag_filters_tmpl + day_tmpl + form_footer).render(db=self, action=self.prefix+'/day', prev_date=prev_date_str, next_date=next_date_str)
 461
 462     def show_calendar(self, start_date_str, end_date_str):
 463         self.t_filter_and = ['calendar']
 464         self.t_filter_not = ['deleted']
 465         self.set_visibilities()
 466         days_to_show = {}
 467         todays_date = str(datetime.now())[:10]
 468         target_start_str = start_date_str if start_date_str else sorted(self.days.keys())[0]
 469         target_start = todays_date if target_start_str == 'today' else target_start_str
 470         target_end_str = end_date_str if end_date_str else sorted(self.days.keys())[-1]
 471         target_end = todays_date if target_end_str == 'today' else target_end_str
 472         start_date = datetime.strptime(target_start, DATE_FORMAT)
 473         end_date = datetime.strptime(target_end, DATE_FORMAT)
 474         for n in range(int((end_date - start_date).days) + 1):
 475             current_date_obj = start_date + timedelta(n)
 476             current_date = current_date_obj.strftime(DATE_FORMAT)
 477             if current_date not in self.days.keys():
 478                 days_to_show[current_date] = self.add_day()
 479             else:
 480                 days_to_show[current_date] = self.days[current_date]
 481             days_to_show[current_date].weekday = datetime.strptime(current_date, DATE_FORMAT).strftime('%A')[:2]
 482         return Template(form_header_tmpl + calendar_tmpl + form_footer).render(db=self, days=days_to_show, action=self.prefix+'/calendar', today=str(datetime.now())[:10], start_date=start_date_str, end_date=end_date_str)
 483
 484     def show_todo(self, task_uuid, selected_date):
 485         todo = self.days[selected_date].todos[task_uuid]
 486         return Template(form_header_tmpl + todo_tmpl + form_footer).render(db=self, todo=todo, action=self.prefix+'/todo')
 487
 488     def update_todo(self, task_uuid, date, day_weight, done, comment, day_tags_joined):
 489         if task_uuid in self.days[date].todos.keys():
 490             todo = self.days[date].todos[task_uuid]
 491         else:
 492             todo = self.days[date].add_todo(task_uuid)
 493         todo.day_weight = float(day_weight) if len(day_weight) > 0 else None
 494         todo.done = done
 495         todo.comment = comment
 496         todo.day_tags_joined = day_tags_joined
 497
 498     def show_task(self, id_):
 499         task = self.tasks[id_] if id_ else self.add_task()
 500         return Template(form_header_tmpl + task_tmpl + form_footer).render(db=self, task=task, action=self.prefix+'/task')
 501
 502     def update_task(self, id_, title, default_weight, tags_joined):
 503         task = self.tasks[id_] if id_ in self.tasks.keys() else self.add_task(id_)
 504         task.title = title
 505         task.default_weight = float(default_weight) if len(default_weight) > 0 else None
 506         task.tags_joined = tags_joined
 507
 508     def show_tasks(self):
 509         return Template(form_header_tmpl + tag_filters_tmpl + tasks_tmpl + form_footer).render(db=self, action=self.prefix+'/tasks')
 510
 511
 512
 513 class TodoHandler(PlomHandler):
 514
 515     def config_init(self):
 516         return {
 517             'cookie_name': 'todo_cookie',
 518             'prefix': '',
 519             'cookie_path': '/'
 520         }
 521
 522     def app_init(self, handler):
 523         default_path = '/todo'
 524         handler.add_route('GET', default_path, self.show_db)
 525         handler.add_route('POST', default_path, self.write_db)
 526         return 'todo', {'cookie_name': 'todo_cookie', 'prefix': default_path, 'cookie_path': default_path}
 527
 528     def do_POST(self):
 529         self.try_do(self.config_init)
 530         self.try_do(self.write_db)
 531
 532     def write_db(self):
 533         from urllib.parse import urlencode
 534         app_config = self.apps['todo'] if hasattr(self, 'apps') else self.config()
 535         length = int(self.headers['content-length'])
 536         postvars = parse_qs(self.rfile.read(length).decode(), keep_blank_values=1)
 537         parsed_url = urlparse(self.path)
 538         db = TodoDB(prefix=app_config['prefix'])
 539
 540         if parsed_url.path == app_config['prefix'] + '/calendar':
 541             start = postvars['start'][0] if len(postvars['start'][0]) > 0 else '-'
 542             end = postvars['end'][0] if len(postvars['end'][0]) > 0 else '-'
 543             homepage = f'{app_config["prefix"]}/calendar?start={start}&end={end}'
 544
 545         elif parsed_url.path == app_config['prefix'] + '/todo':
 546             task_uuid = postvars['task_uuid'][0]
 547             date = postvars['date'][0]
 548             db.update_todo(task_uuid, date, postvars['day_weight'][0], 'done' in postvars.keys(), postvars['comment'][0], postvars['day_tags'][0])
 549             homepage = f'{app_config["prefix"]}/todo?task={task_uuid}&date={date}'
 550
 551         elif parsed_url.path == app_config['prefix'] + '/task':
 552             id_ = postvars['id'][0]
 553             db.update_task(id_, postvars['title'][0], postvars['default_weight'][0], postvars['tags'][0])
 554             homepage = f'{app_config["prefix"]}/task?id={id_}'
 555
 556         elif parsed_url.path in {app_config['prefix'] + '/tasks', app_config['prefix'] + '/day'}:
 557             data = []
 558             for target in postvars['t_and']:
 559                 if len(target) > 0 and not target in db.t_filter_and:
 560                     db.t_filter_and += [target]
 561             if len(db.t_filter_and) == 0:
 562                 data += [('t_and', '-')]
 563             for target in postvars['t_not']:
 564                 if len(target) > 0 and not target in db.t_filter_not:
 565                     db.t_filter_not += [target]
 566             if len(db.t_filter_not) == 0:
 567                 data += [('t_not', '-')]
 568             data += [('t_and', f) for f in db.t_filter_and] + [('t_not', f) for f in db.t_filter_not]
 569             if parsed_url.path == app_config['prefix'] + '/tasks':
 570                 encoded_params = urlencode(data)
 571                 homepage = f'{app_config["prefix"]}/tasks?{encoded_params}'
 572
 573             elif parsed_url.path == app_config['prefix'] + '/day':
 574                 db.hide_unchosen = 'hide_unchosen' in postvars.keys()
 575                 db.hide_done = 'hide_done' in postvars.keys()
 576                 data += [('hide_unchosen', int(db.hide_unchosen))] + [('hide_done', int(db.hide_done))]
 577
 578                 db.selected_date = postvars['original_selected_date'][0]
 579                 new_selected_date = postvars['new_selected_date'][0]
 580                 try:
 581                     datetime.strptime(new_selected_date, DATE_FORMAT)
 582                 except ValueError:
 583                     raise PlomException(f'{app_config["prefix"]} bad date string: {new_selected_date}')
 584                 if new_selected_date != db.selected_date:
 585                     db.change_selected_days_date(new_selected_date)
 586                 if 't_uuid' in postvars.keys():
 587                     for i, uuid in enumerate(postvars['t_uuid']):
 588                         t = db.tasks[uuid]
 589                         if uuid in db.selected_day.todos.keys() and ((not 'choose' in postvars) or uuid not in postvars['choose']):
 590                             del db.selected_day.todos[uuid]
 591                     if 'choose' in postvars.keys():
 592                         for i, uuid in enumerate(postvars['t_uuid']):
 593                             if uuid in postvars['choose']:
 594                                 done = 'done' in postvars and uuid in postvars['done']
 595                                 db.update_todo(uuid, db.selected_date, postvars['day_weight'][i], done, postvars['todo_comment'][i], postvars['day_tags'][i])
 596                 if 'day_comment' in postvars.keys():
 597                     db.selected_day.comment = postvars['day_comment'][0]
 598                 data += [('selected_date', db.selected_date)]
 599                 encoded_params = urlencode(data)
 600                 homepage = f'{app_config["prefix"]}/day?{encoded_params}'
 601
 602         db.write()
 603         self.redirect(homepage)
 604
 605     def do_GET(self):
 606         self.try_do(self.config_init)
 607         self.try_do(self.show_db)
 608
 609     def show_db(self):
 610         app_config = self.apps['todo'] if hasattr(self, 'apps') else self.config()
 611         cookie_db = self.get_cookie_db(app_config['cookie_name'])
 612         parsed_url = urlparse(self.path)
 613         params = parse_qs(parsed_url.query)
 614         selected_date = None
 615         t_filter_and = None
 616         t_filter_not = None
 617         hide_unchosen = False
 618         hide_done = False
 619         if parsed_url.path in {app_config['prefix'] + '/day', app_config['prefix'] + '/tasks'}:
 620             selected_date = params.get('selected_date', [None])[0]
 621             if selected_date is None and 'selected_date' in cookie_db.keys():
 622                 selected_date = cookie_db['selected_date']
 623             cookie_db['selected_date'] = selected_date
 624             t_filter_and = params.get('t_and', None)
 625             if t_filter_and is None and 't_and' in cookie_db.keys():
 626                 t_filter_and = cookie_db['t_and']
 627             elif t_filter_and == ['-']:
 628                 t_filter_and = None
 629             cookie_db['t_and'] = t_filter_and
 630             t_filter_not = params.get('t_not', None)
 631             if t_filter_not is None and 't_not' in cookie_db.keys():
 632                 t_filter_not = cookie_db['t_not']
 633             elif t_filter_not == ['-']:
 634                 t_filter_not = None
 635             else:
 636                 t_filter_not = ['deleted']
 637             cookie_db['t_not'] = t_filter_not
 638         if parsed_url.path == app_config['prefix'] + '/day':
 639             hide_unchosen_params = params.get('hide_unchosen', [])
 640             if 0 == len(hide_unchosen_params):
 641                 if 'hide_unchosen' in cookie_db.keys():
 642                     hide_unchosen = cookie_db['hide_unchosen']
 643             else:
 644                 hide_unchosen = hide_unchosen_params[0] != '0'
 645             cookie_db['hide_unchosen'] = hide_unchosen
 646             hide_done_params = params.get('hide_done', [])
 647             if 0 == len(hide_done_params):
 648                 if 'hide_done' in cookie_db.keys():
 649                     hide_done = cookie_db['hide_done']
 650             else:
 651                 hide_done = hide_done_params[0] != '0'
 652             cookie_db['hide_done'] = hide_done
 653         db = TodoDB(app_config['prefix'], selected_date, t_filter_and, t_filter_not, hide_unchosen, hide_done)
 654         if parsed_url.path == app_config['prefix'] + '/day':
 655             page = db.show_day()
 656         elif parsed_url.path == app_config['prefix'] + '/todo':
 657             todo_date = params.get('date', [None])[0]
 658             task_uuid = params.get('task', [None])[0]
 659             page = db.show_todo(task_uuid, todo_date)
 660         elif parsed_url.path == app_config['prefix'] + '/task':
 661             id_ = params.get('id', [None])[0]
 662             page = db.show_task(id_)
 663         elif parsed_url.path == app_config['prefix'] + '/tasks':
 664             page = db.show_tasks()
 665         elif parsed_url.path == app_config['prefix'] + '/add_task':
 666             page = db.show_task(None)
 667         elif parsed_url.path == app_config['prefix'] + '/unset_cookie':
 668             page = 'no cookie to unset.'
 669             if len(cookie_db) > 0:
 670                 self.unset_cookie(app_config['cookie_name'], app_config['cookie_path'])
 671                 page = 'cookie unset!'
 672         else:
 673             start_date = params.get('start', [None])[0]
 674             if start_date is None:
 675                 if 'calendar_start' in cookie_db.keys():
 676                     start_date = cookie_db['calendar_start']
 677                 else:
 678                     start_date = 'today'
 679             elif start_date == '-':
 680                 start_date = None
 681             cookie_db['calendar_start'] = start_date
 682             end_date = params.get('end', [None])[0]
 683             if end_date is None and 'calendar_end' in cookie_db.keys():
 684                 end_date = cookie_db['calendar_end']
 685             elif end_date == '-':
 686                 end_date = None
 687             cookie_db['calendar_end'] = end_date
 688             page = db.show_calendar(start_date, end_date)
 689         header = Template(html_head).render(db=db, prefix=app_config['prefix'], date=selected_date)
 690         if parsed_url.path != app_config['prefix'] + '/unset_cookie':
 691             self.set_cookie(app_config['cookie_name'], app_config['cookie_path'], cookie_db)
 692         self.send_HTML(header + page)
 693
 694
 695 if __name__ == "__main__":
 696     run_server(server_port, TodoHandler)