From: Christian Heller <c.heller@plomlompom.de>
Date: Wed, 12 Jun 2024 00:37:43 +0000 (+0200)
Subject: Overhaul Todo view to underline difference to ProcessSteps.
X-Git-Url: https://plomlompom.com/repos/%7B%7B%20web_path%20%7D%7D/cards/%7B%7Bcard_id%7D%7D/ledger?a=commitdiff_plain;h=1ac1d92bba8caeeadf2f853cf15b9158c6024908;p=plomtask

Overhaul Todo view to underline difference to ProcessSteps.
---

diff --git a/plomtask/http.py b/plomtask/http.py
index 71305b2..0aa6925 100644
--- a/plomtask/http.py
+++ b/plomtask/http.py
@@ -1,4 +1,6 @@
 """Web server stuff."""
+from __future__ import annotations
+from dataclasses import dataclass
 from typing import Any
 from base64 import b64encode, b64decode
 from http.server import BaseHTTPRequestHandler
@@ -11,13 +13,23 @@ from plomtask.days import Day
 from plomtask.exceptions import HandledException, BadFormatException, \
         NotFoundException
 from plomtask.db import DatabaseConnection, DatabaseFile
-from plomtask.processes import Process, ProcessStep
+from plomtask.processes import Process, ProcessStep, ProcessStepsNode
 from plomtask.conditions import Condition
 from plomtask.todos import Todo
 
 TEMPLATES_DIR = 'templates'
 
 
+@dataclass
+class TodoStepsNode:
+    """Collect what's useful for Todo steps tree display."""
+    id_: int
+    todo: Todo | None
+    process: Process | None
+    children: list[TodoStepsNode]
+    fillable: bool = False
+
+
 class TaskServer(HTTPServer):
     """Variant of HTTPServer that knows .jinja as Jinja Environment."""
 
@@ -46,7 +58,7 @@ class InputsParser:
         return self.inputs[key][0]
 
     def get_first_strings_starting(self, prefix: str) -> dict[str, str]:
-        """Retrieve list of (first) strings at key starting with prefix."""
+        """Retrieve dict of (first) strings at key starting with prefix."""
         ret = {}
         for key in [k for k in self.inputs.keys() if k.startswith(prefix)]:
             ret[key] = self.inputs[key][0]
@@ -173,11 +185,68 @@ class TaskHandler(BaseHTTPRequestHandler):
 
     def do_GET_todo(self) -> dict[str, object]:
         """Show single Todo of ?id=."""
+
+        def walk_process_steps(id_: int,
+                               process_step_nodes: list[ProcessStepsNode],
+                               steps_nodes: list[TodoStepsNode]) -> None:
+            for process_step_node in process_step_nodes:
+                id_ += 1
+                node = TodoStepsNode(id_, None, process_step_node.process, [])
+                steps_nodes += [node]
+                walk_process_steps(id_, list(process_step_node.steps.values()),
+                                   node.children)
+
+        def walk_todo_steps(id_: int, todos: list[Todo],
+                            steps_nodes: list[TodoStepsNode]) -> None:
+            for todo in todos:
+                matched = False
+                for match in [item for item in steps_nodes
+                              if item.process
+                              and item.process == todo.process]:
+                    match.todo = todo
+                    matched = True
+                    for child in match.children:
+                        child.fillable = True
+                    walk_todo_steps(id_, todo.children, match.children)
+                if not matched:
+                    id_ += 1
+                    node = TodoStepsNode(id_, todo, None, [])
+                    steps_nodes += [node]
+                    walk_todo_steps(id_, todo.children, node.children)
+
+        def collect_adoptables_keys(steps_nodes: list[TodoStepsNode]
+                                    ) -> set[int]:
+            ids = set()
+            for node in steps_nodes:
+                if not node.todo:
+                    assert isinstance(node.process, Process)
+                    assert isinstance(node.process.id_, int)
+                    ids.add(node.process.id_)
+                ids = ids | collect_adoptables_keys(node.children)
+            return ids
+
         id_ = self.params.get_int('id')
         todo = Todo.by_id(self.conn, id_)
-        return {'todo': todo,
+        todo_steps = [step.todo for step in todo.get_step_tree(set()).children]
+        process_tree = todo.process.get_steps(self.conn, None)
+        steps_todo_to_process: list[TodoStepsNode] = []
+        walk_process_steps(0, list(process_tree.values()),
+                           steps_todo_to_process)
+        for steps_node in steps_todo_to_process:
+            steps_node.fillable = True
+        walk_todo_steps(len(steps_todo_to_process), todo_steps,
+                        steps_todo_to_process)
+        adoptables: dict[int, list[Todo]] = {}
+        any_adoptables = [Todo.by_id(self.conn, t.id_)
+                          for t in Todo.by_date(self.conn, todo.date)
+                          if t != todo]
+        for id_ in collect_adoptables_keys(steps_todo_to_process):
+            adoptables[id_] = [t for t in any_adoptables
+                               if t.process.id_ == id_]
+        return {'todo': todo, 'steps_todo_to_process': steps_todo_to_process,
+                'adoption_candidates_for': adoptables,
                 'process_candidates': Process.all(self.conn),
-                'todo_candidates': Todo.by_date(self.conn, todo.date),
+                'todo_candidates': any_adoptables,
                 'condition_candidates': Condition.all(self.conn)}
 
     def do_GET_todos(self) -> dict[str, object]:
@@ -370,17 +439,27 @@ class TaskHandler(BaseHTTPRequestHandler):
             return '/'
         todo = Todo.by_id(self.conn, id_)
         adopted_child_ids = self.form_data.get_all_int('adopt')
+        processes_to_make = self.form_data.get_all_int('make')
+        fill_fors = self.form_data.get_first_strings_starting('fill_for_')
+        for v in fill_fors.values():
+            if v.startswith('make_'):
+                processes_to_make += [int(v[5:])]
+            elif v != 'ignore':
+                adopted_child_ids += [int(v)]
+        to_remove = []
         for child in todo.children:
+            assert isinstance(child.id_, int)
             if child.id_ not in adopted_child_ids:
-                assert isinstance(child.id_, int)
-                child = Todo.by_id(self.conn, child.id_)
-                todo.remove_child(child)
+                to_remove += [child.id_]
+        for id_ in to_remove:
+            child = Todo.by_id(self.conn, id_)
+            todo.remove_child(child)
         for child_id in adopted_child_ids:
             if child_id in [c.id_ for c in todo.children]:
                 continue
             child = Todo.by_id(self.conn, child_id)
             todo.add_child(child)
-        for process_id in self.form_data.get_all_int('make'):
+        for process_id in processes_to_make:
             made = Todo.create_with_children(self.conn, process_id, todo.date)
             todo.add_child(made)
         effort = self.form_data.get_str('effort', ignore_strict=True)
diff --git a/templates/_macros.html b/templates/_macros.html
index 23dfbe9..55ab626 100644
--- a/templates/_macros.html
+++ b/templates/_macros.html
@@ -9,10 +9,19 @@
 
 
 
-{% macro datalist_of_titles(title, candidates) %}
+{% macro datalist_of_titles(title, candidates, historical=false, with_comments=false) %}
 <datalist id="{{title}}">
 {% for candidate in candidates %}
-<option value="{{candidate.id_}}">{{candidate.title.newest|e}}</option>
+<option value="{{candidate.id_}}">
+{% if historical is true %}
+{{candidate.title_then|e}}
+{% else %}
+{{candidate.title.newest|e}}
+{% endif %}
+{% if with_comments and candidate.comment %}
+/ {{candidate.comment}}
+{% endif %}
+</option>
 {% endfor %}
 </datalist>
 {% endmacro %}
diff --git a/templates/todo.html b/templates/todo.html
index f62b0d1..5ffa354 100644
--- a/templates/todo.html
+++ b/templates/todo.html
@@ -3,6 +3,44 @@
 
 
 
+{% block css %}
+select{ font-size: 0.5em; margin: 0; padding: 0; }
+{% endblock %}
+
+
+
+{% macro draw_tree_row(item, parent_todo, indent=0) %}
+<tr>
+<td>
+{% if item.todo %}
+{% if not item.process %}+{% else %}&nbsp;{% endif %}<input type="checkbox" name="adopt" value="{{item.todo.id_}}" checked {% if indent > 0 %}disabled{% endif %}/>
+{% endif %}
+</td>
+<td>
+{% for i in range(indent-1) %}&nbsp;&nbsp;{%endfor %}{% if indent > 0 %}·{% endif %}
+{% if item.todo %}
+<a href="todo?id={{item.todo.id_}}">{{item.todo.title_then|e}}</a>
+{% else %}
+{{item.process.title.newest|e}}
+{% if indent == 0 %}
+· fill: <select name="fill_for_{{item.id_}}">
+<option value="ignore">--</option>
+<option value="make_{{item.process.id_}}">make</option>
+{% for adoptable in adoption_candidates_for[item.process.id_] %}
+<option value="{{adoptable.id_}}">adopt #{{adoptable.id_}}{% if adoptable.comment %} / {{adoptable.comment}}{% endif %}</option>
+{% endfor %}
+</select>
+{% endif %}
+{% endif %}
+</td>
+</tr>
+{% for child in item.children %}
+{{ draw_tree_row(child, item, indent+1) }}
+{% endfor %}
+{% endmacro %}
+
+
+
 {% block content %}
 <h3>Todo: {{todo.title_then|e}}</h3>
 <form action="todo?id={{todo.id_}}" method="POST">
@@ -59,9 +97,18 @@
 </td>
 </tr>
 <tr>
-<th>children</th>
-<td>{{ macros.simple_checkbox_table("adopt", todo.children, "todo", "todo_candidates", "adopt", true) }}<br />
-make: <input type="text" name="make" list="process_candidates" autocomplete="off" /></td>
+<th>descendants</th>
+<td>
+{% if steps_todo_to_process|length > 0 %}
+<table>
+{% for step in steps_todo_to_process %}
+{{ draw_tree_row(step, todo) }}
+{% endfor %}
+</table>
+{% endif %}
+adopt: <input type="text" name="adopt" list="todo_candidates" autocomplete="off" /><br />
+make: <input type="text" name="make" list="process_candidates" autocomplete="off" />
+</td>
 </tr>
 </table>
 
@@ -69,9 +116,5 @@ make: <input type="text" name="make" list="process_candidates" autocomplete="off
 </form>
 {{ macros.datalist_of_titles("condition_candidates", condition_candidates) }}
 {{ macros.datalist_of_titles("process_candidates", process_candidates) }}
-<datalist id="todo_candidates">
-{% for candidate in todo_candidates %}
-<option value="{{candidate.id_}}">{{candidate.title.newest|e}} {{candidate.comment|e}}</option>
-{% endfor %}
-</datalist>
+{{ macros.datalist_of_titles("todo_candidates", todo_candidates, historical=true, with_comments=true) }}
 {% endblock %}