X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=plomtask%2Fhttp.py;h=7e2b241aec468a8b6c29221b6f146a702b990883;hb=23012cd370777b60a25839788d131173d2abee91;hp=afcaa116173145bb2ab5b2547937d5458d3e2666;hpb=9e32ae00d4435932d55695be4e757ff109c76f26;p=plomtask

diff --git a/plomtask/http.py b/plomtask/http.py
index afcaa11..7e2b241 100644
--- a/plomtask/http.py
+++ b/plomtask/http.py
@@ -1,64 +1,308 @@
 """Web server stuff."""
+from typing import Any, NamedTuple
 from http.server import BaseHTTPRequestHandler
 from http.server import HTTPServer
 from urllib.parse import urlparse, parse_qs
 from os.path import split as path_split
 from jinja2 import Environment as JinjaEnv, FileSystemLoader as JinjaFSLoader
-from plomtask.days import Day
-from plomtask.misc import HandledException
-from plomtask.db import DatabaseConnection
+from plomtask.days import Day, todays_date
+from plomtask.exceptions import HandledException, BadFormatException, \
+        NotFoundException
+from plomtask.db import DatabaseConnection, DatabaseFile
+from plomtask.processes import Process
+from plomtask.conditions import Condition
+from plomtask.todos import Todo
+
+TEMPLATES_DIR = 'templates'
 
 
 class TaskServer(HTTPServer):
     """Variant of HTTPServer that knows .jinja as Jinja Environment."""
 
-    def __init__(self, templates_dir, db_file, *args, **kwargs):
+    def __init__(self, db_file: DatabaseFile,
+                 *args: Any, **kwargs: Any) -> None:
         super().__init__(*args, **kwargs)
         self.db = db_file
-        self.jinja = JinjaEnv(loader=JinjaFSLoader(templates_dir))
+        self.jinja = JinjaEnv(loader=JinjaFSLoader(TEMPLATES_DIR))
+
+
+class InputsParser:
+    """Wrapper for validating and retrieving dict-like HTTP inputs."""
+
+    def __init__(self, dict_: dict[str, list[str]],
+                 strictness: bool = True) -> None:
+        self.inputs = dict_
+        self.strict = strictness
+
+    def get_str(self, key: str, default: str = '',
+                ignore_strict: bool = False) -> str:
+        """Retrieve single/first string value of key, or default."""
+        if key not in self.inputs.keys() or 0 == len(self.inputs[key]):
+            if self.strict and not ignore_strict:
+                raise BadFormatException(f'no value found for key {key}')
+            return default
+        return self.inputs[key][0]
+
+    def get_int(self, key: str) -> int:
+        """Retrieve single/first value of key as int, error if empty."""
+        val = self.get_int_or_none(key)
+        if val is None:
+            raise BadFormatException(f'unexpected empty value for: {key}')
+        return val
+
+    def get_int_or_none(self, key: str) -> int | None:
+        """Retrieve single/first value of key as int, return None if empty."""
+        val = self.get_str(key, ignore_strict=True)
+        if val == '':
+            return None
+        try:
+            return int(val)
+        except ValueError as e:
+            msg = f'cannot int form field value for key {key}: {val}'
+            raise BadFormatException(msg) from e
+
+    def get_float(self, key: str) -> float:
+        """Retrieve float value of key from self.postvars."""
+        val = self.get_str(key)
+        try:
+            return float(val)
+        except ValueError as e:
+            msg = f'cannot float form field value for key {key}: {val}'
+            raise BadFormatException(msg) from e
+
+    def get_all_str(self, key: str) -> list[str]:
+        """Retrieve list of string values at key."""
+        if key not in self.inputs.keys():
+            return []
+        return self.inputs[key]
+
+    def get_all_int(self, key: str) -> list[int]:
+        """Retrieve list of int values at key."""
+        all_str = self.get_all_str(key)
+        try:
+            return [int(s) for s in all_str if len(s) > 0]
+        except ValueError as e:
+            msg = f'cannot int a form field value for key {key} in: {all_str}'
+            raise BadFormatException(msg) from e
 
 
 class TaskHandler(BaseHTTPRequestHandler):
     """Handles single HTTP request."""
     server: TaskServer
 
-    def do_GET(self):
+    def do_GET(self) -> None:
         """Handle any GET request."""
         try:
-            conn = DatabaseConnection(self.server.db)
-            parsed_url = urlparse(self.path)
-            site = path_split(parsed_url.path)[1]
-            params = parse_qs(parsed_url.query)
-            if 'calendar' == site:
-                html = self.do_GET_calendar(conn)
-            elif 'day' == site:
-                date = params.get('date', ['2024-01-01'])[0]
-                html = self.do_GET_day(conn, date)
+            self._init_handling()
+            if self.site in {'calendar', 'day', 'process', 'processes', 'todo',
+                             'condition', 'conditions'}:
+                template = f'{self.site}.html'
+                ctx = getattr(self, f'do_GET_{self.site}')()
+                html = self.server.jinja.get_template(template).render(**ctx)
+                self._send_html(html)
+            elif '' == self.site:
+                self._redirect('/day')
             else:
-                raise HandledException('Test!')
-            conn.commit()
-            conn.close()
-            self._send_html(html)
+                raise NotFoundException(f'Unknown page: /{self.site}')
         except HandledException as error:
-            self._send_msg(error)
+            self._send_msg(error, code=error.http_code)
+        finally:
+            self.conn.close()
+
+    def do_GET_calendar(self) -> dict[str, object]:
+        """Show Days from ?start= to ?end=."""
+        start = self.params.get_str('start')
+        end = self.params.get_str('end')
+        days = Day.all(self.conn, date_range=(start, end), fill_gaps=True)
+        return {'start': start, 'end': end, 'days': days}
+
+    def do_GET_day(self) -> dict[str, object]:
+        """Show single Day of ?date=."""
+
+        class ConditionListing(NamedTuple):
+            """Listing of Condition augmented with its enablers, disablers."""
+            condition: Condition
+            enablers: list[Todo]
+            disablers: list[Todo]
 
-    def do_GET_calendar(self, conn: DatabaseConnection):
-        """Show Days."""
-        return self.server.jinja.get_template('calendar.html').render(
-                days=Day.all(conn))
+        date = self.params.get_str('date', todays_date())
+        top_todos = [t for t in Todo.by_date(self.conn, date) if not t.parents]
+        seen_todos: set[int] = set()
+        seen_conditions: set[int] = set()
+        todo_trees = [t.get_step_tree(seen_todos, seen_conditions)
+                      for t in top_todos]
+        condition_listings: list[ConditionListing] = []
+        for cond in Condition.all(self.conn):
+            enablers = Todo.enablers_for_at(self.conn, cond, date)
+            disablers = Todo.disablers_for_at(self.conn, cond, date)
+            condition_listings += [ConditionListing(cond, enablers, disablers)]
+        return {'day': Day.by_id(self.conn, date, create=True),
+                'todo_trees': todo_trees,
+                'processes': Process.all(self.conn),
+                'condition_listings': condition_listings}
 
-    def do_GET_day(self, conn: DatabaseConnection, date: str):
-        """Show single Day."""
-        day = Day.by_date(conn, date)
-        return self.server.jinja.get_template('day.html').render(day=day)
+    def do_GET_todo(self) -> dict[str, object]:
+        """Show single Todo of ?id=."""
+        id_ = self.params.get_int('id')
+        todo = Todo.by_id(self.conn, id_)
+        return {'todo': todo,
+                'todo_candidates': Todo.by_date(self.conn, todo.date),
+                'condition_candidates': Condition.all(self.conn)}
+
+    def do_GET_conditions(self) -> dict[str, object]:
+        """Show all Conditions."""
+        return {'conditions': Condition.all(self.conn)}
+
+    def do_GET_condition(self) -> dict[str, object]:
+        """Show Condition of ?id=."""
+        id_ = self.params.get_int_or_none('id')
+        return {'condition': Condition.by_id(self.conn, id_, create=True)}
+
+    def do_GET_process(self) -> dict[str, object]:
+        """Show process of ?id=."""
+        id_ = self.params.get_int_or_none('id')
+        process = Process.by_id(self.conn, id_, create=True)
+        return {'process': process,
+                'steps': process.get_steps(self.conn),
+                'owners': process.used_as_step_by(self.conn),
+                'step_candidates': Process.all(self.conn),
+                'condition_candidates': Condition.all(self.conn)}
+
+    def do_GET_processes(self) -> dict[str, object]:
+        """Show all Processes."""
+        return {'processes': Process.all(self.conn)}
+
+    def do_POST(self) -> None:
+        """Handle any POST request."""
+        # pylint: disable=attribute-defined-outside-init
+        try:
+            self._init_handling()
+            length = int(self.headers['content-length'])
+            postvars = parse_qs(self.rfile.read(length).decode(),
+                                keep_blank_values=True, strict_parsing=True)
+            self.form_data = InputsParser(postvars)
+            if self.site in ('day', 'process', 'todo', 'condition'):
+                redir_target = getattr(self, f'do_POST_{self.site}')()
+                self.conn.commit()
+            else:
+                msg = f'Page not known as POST target: /{self.site}'
+                raise NotFoundException(msg)
+            self._redirect(redir_target)
+        except HandledException as error:
+            self._send_msg(error, code=error.http_code)
+        finally:
+            self.conn.close()
+
+    def do_POST_day(self) -> str:
+        """Update or insert Day of date and Todos mapped to it."""
+        date = self.params.get_str('date')
+        day = Day.by_id(self.conn, date, create=True)
+        day.comment = self.form_data.get_str('comment')
+        day.save(self.conn)
+        existing_todos = Todo.by_date(self.conn, date)
+        for process_id in self.form_data.get_all_int('new_todo'):
+            process = Process.by_id(self.conn, process_id)
+            todo = Todo(None, process, False, day.date)
+            todo.save(self.conn)
+            todo.adopt_from(existing_todos)
+            todo.make_missing_children(self.conn)
+            todo.save(self.conn)
+        return f'/day?date={date}'
+
+    def do_POST_todo(self) -> str:
+        """Update Todo and its children."""
+        id_ = self.params.get_int('id')
+        todo = Todo.by_id(self.conn, id_)
+        adopted_child_ids = self.form_data.get_all_int('adopt')
+        for child in todo.children:
+            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)
+        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)
+        todo.set_conditions(self.conn, self.form_data.get_all_int('condition'))
+        todo.set_enables(self.conn, self.form_data.get_all_int('enables'))
+        todo.set_disables(self.conn, self.form_data.get_all_int('disables'))
+        todo.is_done = len(self.form_data.get_all_str('done')) > 0
+        todo.save(self.conn)
+        for condition in todo.enables:
+            condition.save(self.conn)
+        for condition in todo.disables:
+            condition.save(self.conn)
+        return f'/todo?id={todo.id_}'
+
+    def do_POST_process(self) -> str:
+        """Update or insert Process of ?id= and fields defined in postvars."""
+        id_ = self.params.get_int_or_none('id')
+        for _ in self.form_data.get_all_str('delete'):
+            process = Process.by_id(self.conn, id_)
+            process.remove(self.conn)
+            return '/processes'
+        process = Process.by_id(self.conn, id_, create=True)
+        process.title.set(self.form_data.get_str('title'))
+        process.description.set(self.form_data.get_str('description'))
+        process.effort.set(self.form_data.get_float('effort'))
+        process.set_conditions(self.conn,
+                               self.form_data.get_all_int('condition'))
+        process.set_enables(self.conn, self.form_data.get_all_int('enables'))
+        process.set_disables(self.conn, self.form_data.get_all_int('disables'))
+        process.save_core(self.conn)
+        process.explicit_steps = []
+        steps: list[tuple[int | None, int, int | None]] = []
+        for step_id in self.form_data.get_all_int('steps'):
+            for step_process_id in self.form_data.get_all_int(
+                    f'new_step_to_{step_id}'):
+                steps += [(None, step_process_id, step_id)]
+            if step_id not in self.form_data.get_all_int('keep_step'):
+                continue
+            step_process_id = self.form_data.get_int(
+                    f'step_{step_id}_process_id')
+            parent_id = self.form_data.get_int_or_none(
+                    f'step_{step_id}_parent_id')
+            steps += [(step_id, step_process_id, parent_id)]
+        for step_process_id in self.form_data.get_all_int('new_top_step'):
+            steps += [(None, step_process_id, None)]
+        process.set_steps(self.conn, steps)
+        process.save(self.conn)
+        return f'/process?id={process.id_}'
+
+    def do_POST_condition(self) -> str:
+        """Update/insert Condition of ?id= and fields defined in postvars."""
+        id_ = self.params.get_int_or_none('id')
+        for _ in self.form_data.get_all_str('delete'):
+            condition = Condition.by_id(self.conn, id_)
+            condition.remove(self.conn)
+            return '/conditions'
+        condition = Condition.by_id(self.conn, id_, create=True)
+        condition.title.set(self.form_data.get_str('title'))
+        condition.description.set(self.form_data.get_str('description'))
+        condition.save(self.conn)
+        return f'/condition?id={condition.id_}'
+
+    def _init_handling(self) -> None:
+        # pylint: disable=attribute-defined-outside-init
+        self.conn = DatabaseConnection(self.server.db)
+        parsed_url = urlparse(self.path)
+        self.site = path_split(parsed_url.path)[1]
+        params = parse_qs(parsed_url.query, strict_parsing=True)
+        self.params = InputsParser(params, False)
+
+    def _redirect(self, target: str) -> None:
+        self.send_response(302)
+        self.send_header('Location', target)
+        self.end_headers()
 
-    def _send_html(self, html: str, code: int = 200):
+    def _send_html(self, html: str, code: int = 200) -> None:
         """Send HTML as proper HTTP response."""
         self.send_response(code)
         self.end_headers()
         self.wfile.write(bytes(html, 'utf-8'))
 
-    def _send_msg(self, msg: str, code: int = 400):
+    def _send_msg(self, msg: Exception, code: int = 400) -> None:
         """Send message in HTML formatting as HTTP response."""
         html = self.server.jinja.get_template('msg.html').render(msg=msg)
         self._send_html(html, code)