456 lines
19 KiB
Python
456 lines
19 KiB
Python
import re
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import sys
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import os
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from datetime import datetime
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import asyncio
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import logging
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from typing import Iterable
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# Add the parent directory to the system path to resolve relative imports
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sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
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from textual import work
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from textual.worker import Worker
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from textual.app import App, ComposeResult, SystemCommand, RenderResult
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from textual.logging import TextualHandler
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from textual.screen import Screen
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from textual.widgets import Footer, Static, Label, Markdown, ListView, ListItem
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from textual.reactive import reactive, Reactive
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from textual.binding import Binding
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from textual.timer import Timer
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from textual.containers import ScrollableContainer, Grid, Vertical, Horizontal
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from actions.archive import archive_current
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from actions.delete import delete_current
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from actions.open import action_open
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from actions.task import action_create_task
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from widgets.EnvelopeHeader import EnvelopeHeader
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from maildir_gtd.utils import group_envelopes_by_date
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logging.basicConfig(
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level="NOTSET",
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handlers=[TextualHandler()],
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)
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class StatusTitle(Static):
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total_messages: Reactive[int] = reactive(0)
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current_message_index: Reactive[int] = reactive(0)
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current_message_id: Reactive[int] = reactive(1)
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folder: Reactive[str] = reactive("INBOX")
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def render(self) -> RenderResult:
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return f"{self.folder} | ID: {self.current_message_id} | [b]{self.current_message_index}[/b]/{self.total_messages}"
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class EmailViewerApp(App):
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"""A simple email viewer app using the Himalaya CLI."""
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CSS_PATH = "email_viewer.tcss"
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title = "Maildir GTD Reader"
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current_message_id: Reactive[int] = reactive(0)
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current_message_index: Reactive[int] = reactive(0)
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folder = reactive("INBOX")
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header_expanded = reactive(False)
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reload_needed = reactive(True)
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all_envelopes = reactive([])
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next_id: Reactive[int] = reactive(0)
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previous_id: Reactive[int] = reactive(0)
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oldest_id: Reactive[int] = reactive(0)
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newest_id: Reactive[int] = reactive(0)
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msg_worker: Worker | None = None
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messsage_metadata: dict[int, dict] = {}
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message_body_cache: dict[int, str] = {}
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total_messages: Reactive[int] = reactive(0)
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status_title = reactive("Message View")
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sort_order_ascending: Reactive[bool] = reactive(True)
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valid_envelopes = reactive([])
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def get_system_commands(self, screen: Screen) -> Iterable[SystemCommand]:
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yield from super().get_system_commands(screen)
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yield SystemCommand("Next Message", "Navigate to Next ID", self.action_next)
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yield SystemCommand("Previous Message", "Navigate to Previous ID", self.action_previous)
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yield SystemCommand("Delete Message", "Delete the current message", self.action_delete)
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yield SystemCommand("Archive Message", "Archive the current message", self.action_archive)
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yield SystemCommand("Open Message", "Open a specific message by ID", self.action_open)
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yield SystemCommand("Create Task", "Create a task using the task CLI", self.action_create_task)
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yield SystemCommand("Oldest Message", "Show the oldest message", self.action_oldest)
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yield SystemCommand("Newest Message", "Show the newest message", self.action_newest)
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yield SystemCommand("Reload", "Reload the message list", self.fetch_envelopes)
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BINDINGS = [
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Binding("j", "next", "Next message"),
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Binding("k", "previous", "Previous message"),
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Binding("#", "delete", "Delete message"),
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Binding("e", "archive", "Archive message"),
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Binding("o", "open", "Open message", show=False),
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Binding("q", "quit", "Quit application"),
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Binding("h", "toggle_header", "Toggle Envelope Header"),
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Binding("t", "create_task", "Create Task"),
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Binding("%", "reload", "Reload message list"),
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Binding("1", "focus_1", "Focus Accounts Panel"),
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Binding("2", "focus_2", "Focus Folders Panel"),
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Binding("3", "focus_3", "Focus Envelopes Panel")
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]
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BINDINGS.extend([
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Binding("space", "scroll_page_down", "Scroll page down"),
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Binding("b", "scroll_page_up", "Scroll page up"),
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Binding("s", "toggle_sort_order", "Toggle Sort Order")
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])
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def compose(self) -> ComposeResult:
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yield Horizontal(
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Vertical(
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ListView(ListItem(Label("All emails...")), id="envelopes_list", classes="list_view", initial_index=0),
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ListView(id="accounts_list", classes="list_view"),
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ListView(id="folders_list", classes="list_view"),
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id="sidebar"
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),
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ScrollableContainer(
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EnvelopeHeader(),
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Markdown(),
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id="main_content"
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),
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id="outer-wrapper"
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)
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yield Footer()
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async def on_mount(self) -> None:
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self.alert_timer: Timer | None = None # Timer to throttle alerts
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self.theme = "monokai"
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self.title = "MaildirGTD"
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self.query_one("#main_content").border_title = self.status_title
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sort_indicator = '\u2191' if self.sort_order_ascending else '\u2193'
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self.query_one("#envelopes_list").border_title = f"\[1] Emails {sort_indicator}"
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self.query_one("#accounts_list").border_title = "\[2] Accounts"
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self.query_one("#folders_list").border_title = "\[3] Folders"
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# self.query_one(ListView).data_bind(index=EmailViewerApp.current_message_index)
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# self.watch(self.query_one(StatusTitle), "current_message_id", update_progress)
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# Fetch the ID of the most recent message using the Himalaya CLI
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self.fetch_accounts()
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self.fetch_folders()
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worker = self.fetch_envelopes()
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await worker.wait()
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self.query_one("#envelopes_list").focus()
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self.action_oldest()
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def compute_status_title(self) -> None:
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sort_indicator = "\u2191" if self.sort_order_ascending else "\u2193"
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return f"✉️ Message ID: {self.current_message_id} "
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def compute_valid_envelopes(self) -> None:
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return (envelope for envelope in self.all_envelopes if envelope.get('id'))
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def watch_status_title(self, old_status_title: str, new_status_title: str) -> None:
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self.query_one("#main_content").border_title = new_status_title
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def watch_sort_order_ascending(self, old_value: bool, new_value: bool) -> None:
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"""Update the border title of the envelopes list when the sort order changes."""
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sort_indicator = "\u2191" if new_value else "\u2193"
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self.query_one("#envelopes_list").border_title = f"\[1] Emails {sort_indicator}"
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def watch_current_message_index(self, old_index: int, new_index: int) -> None:
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self.query_one("#envelopes_list").border_subtitle = f"[b]{self.current_message_index}[/b]/{self.total_messages}"
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def compute_newest_id(self) -> None:
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if not self.all_envelopes:
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return 0
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return sorted((int(envelope['id']) for envelope in self.valid_envelopes))[-1]
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def compute_oldest_id(self) -> None:
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if not self.valid_envelopes:
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return 0
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sorted_msgs = sorted((int(envelope['id']) for envelope in self.valid_envelopes))
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if len(sorted_msgs) > 0:
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return sorted_msgs[0]
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return 0
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def compute_next_id(self) -> None:
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if not self.valid_envelopes:
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return 0
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for envelope_id in sorted(int(envelope['id']) for envelope in self.valid_envelopes):
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if envelope_id > int(self.current_message_id):
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return envelope_id
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return self.newest_id
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def compute_previous_id(self) -> None:
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if not self.valid_envelopes:
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return 0
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for envelope_id in sorted((int(envelope['id']) for envelope in self.valid_envelopes), reverse=True):
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if envelope_id < int(self.current_message_id):
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return envelope_id
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return self.oldest_id
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def watch_reload_needed(self, old_reload_needed: bool, new_reload_needed: bool) -> None:
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logging.info(f"Reload needed: {new_reload_needed}")
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if (old_reload_needed == False and new_reload_needed == True):
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self.fetch_envelopes()
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def watch_current_message_id(self, old_message_id: int, new_message_id: int) -> None:
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"""Called when the current message ID changes."""
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logging.info(f"Current message ID changed from {old_message_id} to {new_message_id}")
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if (new_message_id == old_message_id):
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return
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self.msg_worker.cancel() if self.msg_worker else None
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headers = self.query_one(EnvelopeHeader)
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if new_message_id in self.message_metadata:
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metadata = self.message_metadata[new_message_id]
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self.current_message_index = metadata['index']
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headers.subject = metadata['subject'].strip()
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headers.from_ = metadata['from'].get('addr', '')
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headers.to = metadata['to'].get('addr', '')
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headers.date = datetime.strptime(metadata['date'].replace("+00:00", ""), "%Y-%m-%d %H:%M").strftime("%a %b %d %H:%M")
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headers.cc = metadata['cc'].get('addr', '') if 'cc' in metadata else ""
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self.query_one(ListView).index = metadata['index']
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else:
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logging.warning(f"Message ID {new_message_id} not found in metadata.")
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if (self.message_body_cache.get(new_message_id)):
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# If the message body is already cached, use it
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msg = self.query_one(Markdown)
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msg.update(self.message_body_cache[new_message_id])
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return
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else:
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self.query_one("#main_content").loading = True
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self.msg_worker = self.fetch_one_message(new_message_id)
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def on_list_view_selected(self, event: ListView.Selected) -> None:
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"""Called when an item in the list view is selected."""
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# logging.info(f"Selected item: {self.all_envelopes[event.list_view.index]}")
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if self.all_envelopes[event.list_view.index] is None or self.all_envelopes[event.list_view.index].get("type") == "header":
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# If the selected item is a header, do not change the current message ID
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return
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self.current_message_id = int(self.all_envelopes[event.list_view.index]['id'])
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@work(exclusive=False)
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async def fetch_one_message(self, new_message_id:int) -> None:
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msg = self.query_one(Markdown)
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try:
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process = await asyncio.create_subprocess_shell(
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f"himalaya message read {str(new_message_id)}",
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE
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)
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stdout, stderr = await process.communicate()
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logging.info(f"stdout: {stdout.decode()[0:50]}...")
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if process.returncode == 0:
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# Render the email content as Markdown
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fixedText = stdout.decode().replace("(https://urldefense.com/v3/", "(")
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fixedText = re.sub(r"atlOrigin.+?\)", ")", fixedText)
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logging.info(f"rendering fixedText: {fixedText[0:50]}")
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self.message_body_cache[new_message_id] = fixedText
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await msg.update(fixedText)
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self.query_one("#main_content").loading = False
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logging.info(fixedText)
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except Exception as e:
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self.show_status(f"Error fetching message content: {e}", "error")
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logging.error(f"Error fetching message content: {e}")
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@work(exclusive=False)
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async def fetch_envelopes(self) -> None:
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msglist = self.query_one("#envelopes_list")
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try:
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msglist.loading = True
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process = await asyncio.create_subprocess_shell(
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"himalaya envelope list -o json -s 9999",
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE
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)
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stdout, stderr = await process.communicate()
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logging.info(f"stdout: {stdout.decode()[0:50]}")
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if process.returncode == 0:
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import json
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envelopes = json.loads(stdout.decode())
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if envelopes:
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self.reload_needed = False
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self.total_messages = len(envelopes)
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msglist.clear()
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envelopes = sorted(envelopes, key=lambda x: int(x['id']), reverse=not self.sort_order_ascending)
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grouped_envelopes = group_envelopes_by_date(envelopes)
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self.all_envelopes = grouped_envelopes
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self.message_metadata = {
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envelope['id']: {
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'subject': envelope.get('subject', ''),
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'from': envelope.get('from', {}),
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'to': envelope.get('to', {}),
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'date': envelope.get('date', ''),
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'cc': envelope.get('cc', {}),
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'index': index # Store the position index
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}
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for index, envelope in enumerate(self.all_envelopes)
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if 'id' in envelope
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}
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for item in grouped_envelopes:
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if item.get("type") == "header":
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msglist.append(ListItem(Label(item["label"], classes="group_header", markup=False)))
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else:
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msglist.append(ListItem(Label(str(item['subject']).strip(), classes="email_subject", markup=False)))
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msglist.index = self.current_message_index
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else:
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self.show_status("Failed to fetch any envelopes.", "error")
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except Exception as e:
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self.show_status(f"Error fetching message list: {e}", "error")
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finally:
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msglist.loading = False
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@work(exclusive=False)
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async def fetch_accounts(self) -> None:
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accounts_list = self.query_one("#accounts_list")
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try:
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accounts_list.loading = True
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process = await asyncio.create_subprocess_shell(
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"himalaya account list -o json",
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE
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)
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stdout, stderr = await process.communicate()
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logging.info(f"stdout: {stdout.decode()[0:50]}")
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if process.returncode == 0:
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import json
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accounts = json.loads(stdout.decode())
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if accounts:
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for account in accounts:
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item = ListItem(Label(str(account['name']).strip(), classes="account_name", markup=False))
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accounts_list.append(item)
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except Exception as e:
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self.show_status(f"Error fetching account list: {e}", "error")
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finally:
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accounts_list.loading = False
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@work(exclusive=False)
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async def fetch_folders(self) -> None:
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folders_list = self.query_one("#folders_list")
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folders_list.clear()
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folders_list.append(ListItem(Label("INBOX", classes="folder_name", markup=False)))
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try:
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folders_list.loading = True
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process = await asyncio.create_subprocess_shell(
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"himalaya folder list -o json",
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE
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)
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stdout, stderr = await process.communicate()
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logging.info(f"stdout: {stdout.decode()[0:50]}")
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if process.returncode == 0:
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import json
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folders = json.loads(stdout.decode())
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if folders:
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for folder in folders:
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item = ListItem(Label(str(folder['name']).strip(), classes="folder_name", markup=False))
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folders_list.append(item)
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except Exception as e:
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self.show_status(f"Error fetching folder list: {e}", "error")
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finally:
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folders_list.loading = False
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def show_message(self, message_id: int) -> None:
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self.current_message_id = message_id
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def show_status(self, message: str, severity: str = "information") -> None:
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"""Display a status message using the built-in notify function."""
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self.notify(message, title="Status", severity=severity, timeout=1.6, markup=True)
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def action_toggle_header(self) -> None:
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"""Toggle the visibility of the EnvelopeHeader panel."""
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header = self.query_one(EnvelopeHeader)
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header.styles.height = "1" if self.header_expanded else "auto"
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self.header_expanded = not self.header_expanded
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async def action_toggle_sort_order(self) -> None:
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"""Toggle the sort order of the envelope list."""
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self.sort_order_ascending = not self.sort_order_ascending
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worker = self.fetch_envelopes()
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await worker.wait()
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# Call action_newest or action_oldest based on the new sort order
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if self.sort_order_ascending:
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self.action_oldest()
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else:
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self.action_newest()
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def action_next(self) -> None:
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if self.sort_order_ascending:
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self.show_message(self.next_id)
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else:
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self.show_message(self.previous_id)
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self.fetch_envelopes() if self.reload_needed else None
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def action_previous(self) -> None:
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if self.sort_order_ascending:
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self.show_message(self.previous_id)
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else:
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self.show_message(self.next_id)
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self.fetch_envelopes() if self.reload_needed else None
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def action_delete(self) -> None:
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self.all_envelopes.remove(self.all_envelopes[self.current_message_index])
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self.message_body_cache.pop(self.current_message_id, None)
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self.total_messages = len(self.all_envelopes)
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delete_current(self)
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def action_archive(self) -> None:
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self.all_envelopes.remove(self.all_envelopes[self.current_message_index])
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self.message_body_cache.pop(self.current_message_id, None)
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self.total_messages = len(self.all_envelopes)
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archive_current(self)
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def action_open(self) -> None:
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action_open(self)
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def action_create_task(self) -> None:
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action_create_task(self)
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def action_scroll_down(self) -> None:
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"""Scroll the main content down."""
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self.query_one("#main_content").scroll_down()
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def action_scroll_up(self) -> None:
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"""Scroll the main content up."""
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self.query_one("#main_content").scroll_up()
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def action_scroll_page_down(self) -> None:
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"""Scroll the main content down by a page."""
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self.query_one("#main_content").scroll_page_down()
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def action_scroll_page_up(self) -> None:
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"""Scroll the main content up by a page."""
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self.query_one("#main_content").scroll_page_up()
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def action_quit(self) -> None:
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"""Quit the application."""
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self.exit()
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def action_oldest(self) -> None:
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self.fetch_envelopes() if self.reload_needed else None
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self.show_message(self.oldest_id)
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def action_newest(self) -> None:
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self.fetch_envelopes() if self.reload_needed else None
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self.show_message(self.newest_id)
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def action_focus_1(self) -> None:
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self.query_one("#envelopes_list").focus()
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def action_focus_2(self) -> None:
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self.query_one("#accounts_list").focus()
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|
|
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def action_focus_3(self) -> None:
|
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self.query_one("#folders_list").focus()
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|
|
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if __name__ == "__main__":
|
|
app = EmailViewerApp()
|
|
app.run()
|