#!/usr/bin/env -S uv run --script
# /// script
# requires-python = ">=3.12"
# dependencies = ["httpx>=0.28.1", "rich>=14.0.0"]
# ///
#MISE description="List Blumeops tasks from Todoist sorted by priority"
"""Fetch and display Blumeops tasks from Todoist, sorted by priority.

This script is specific to Erich Blume's personal development workflow and
is not intended for general use. It requires:

  - A 1Password CLI (`op`) configured with access to the author's vault
  - A Todoist account with a project named "Blumeops"

The script fetches tasks and displays them sorted by a custom priority order:
p1 (urgent), p2 (high), p4 (normal/default), p3 (backlog). The p3-last ordering
reflects a deliberate choice to treat p3 as "backlog" rather than moderate
priority.

Usage: mise run blumeops-tasks
"""

import subprocess
import sys
from datetime import date

import httpx
from rich.console import Console
from rich.markup import escape
from rich.text import Text

TODOIST_API_BASE = "https://api.todoist.com/api/v1"
PROJECT_NAME = "Blumeops"

# Priority mapping: Todoist API uses 1=normal(p4), 2=moderate(p3), 3=high(p2), 4=urgent(p1)
# User wants order: p1, p2, p4, p3 (p3 is backlog, goes last)
PRIORITY_LABELS = {4: "p1", 3: "p2", 1: "p4", 2: "p3"}
PRIORITY_SORT_ORDER = {4: 1, 3: 2, 1: 3, 2: 4}  # Lower = earlier


def get_todoist_token() -> str:
    """Retrieve Todoist API token from 1Password."""
    result = subprocess.run(
        ["op", "read", "op://vg6xf6vvfmoh5hqjjhlhbeoaie/c53h3xnmswhvexa5mntoyvhgpm/credential"],
        capture_output=True,
        text=True,
    )
    if result.returncode != 0:
        raise RuntimeError(f"Failed to get Todoist token from 1Password: {result.stderr}")
    return result.stdout.strip()


def get_project_id(client: httpx.Client, project_name: str) -> str:
    """Find project ID by name."""
    cursor = None
    while True:
        params = {}
        if cursor:
            params["cursor"] = cursor
        response = client.get(f"{TODOIST_API_BASE}/projects", params=params)
        response.raise_for_status()
        data = response.json()
        for project in data.get("results", data if isinstance(data, list) else []):
            if project["name"] == project_name:
                return project["id"]
        cursor = data.get("next_cursor") if isinstance(data, dict) else None
        if not cursor:
            break

    raise RuntimeError(f"Project '{project_name}' not found in Todoist")


def get_tasks(client: httpx.Client, project_id: str) -> list[dict]:
    """Get all tasks for a project."""
    tasks = []
    cursor = None
    while True:
        params = {"project_id": project_id}
        if cursor:
            params["cursor"] = cursor
        response = client.get(f"{TODOIST_API_BASE}/tasks", params=params)
        response.raise_for_status()
        data = response.json()
        tasks.extend(data.get("results", data if isinstance(data, list) else []))
        cursor = data.get("next_cursor") if isinstance(data, dict) else None
        if not cursor:
            break
    return tasks


def is_due(task: dict) -> bool:
    """Check if a task should be displayed based on its due date.

    Tasks without a due date are always shown. Tasks with a due date
    are only shown when the date is today or in the past.
    """
    due = task.get("due")
    if due is None:
        return True
    due_date = date.fromisoformat(due["date"][:10])
    return due_date <= date.today()


def sort_tasks(tasks: list[dict]) -> list[dict]:
    """Sort tasks by custom priority order: p1, p2, p4, p3."""
    return sorted(tasks, key=lambda t: PRIORITY_SORT_ORDER.get(t["priority"], 5))


def main() -> int:
    console = Console()

    # Get API token
    try:
        token = get_todoist_token()
    except RuntimeError as e:
        console.print(f"[red]Error:[/red] {e}")
        return 1

    # Create HTTP client with auth header
    with httpx.Client(headers={"Authorization": f"Bearer {token}"}) as client:
        # Find project
        try:
            project_id = get_project_id(client, PROJECT_NAME)
        except RuntimeError as e:
            console.print(f"[red]Error:[/red] {e}")
            return 1

        # Get, filter, and sort tasks
        tasks = get_tasks(client, project_id)
        tasks = [t for t in tasks if is_due(t)]
        sorted_tasks = sort_tasks(tasks)

    if not sorted_tasks:
        console.print("No tasks found in Blumeops project")
        return 0

    # Display tasks
    console.print(f"[bold]Blumeops Tasks[/bold] ({len(sorted_tasks)} tasks)")
    console.print("=" * 40)
    console.print()

    for task in sorted_tasks:
        priority = task["priority"]
        label = PRIORITY_LABELS.get(priority, "p?")
        content = task["content"]
        description = task.get("description", "")

        # Header line with priority and content
        header = Text()
        header.append(f"[{label}]", style="bold")
        header.append(f" {content}")
        console.print(header)

        # Description indented (escape rich markup to preserve brackets)
        if description:
            for line in description.split("\n"):
                console.print(f"      {escape(line)}", style="dim")

        console.print()

    return 0


if __name__ == "__main__":
    sys.exit(main())