#!/usr/bin/env -S uv run --script
# /// script
# requires-python = ">=3.12"
# dependencies = ["httpx>=0.27.0", "rich>=13.0.0"]
# ///
#MISE description="List unresolved comments on a PR"
#USAGE arg "<pr_number>" help="Pull request number"
"""Fetch and display unresolved review comments on a pull request.

This script queries the Forge (Gitea) API to find all review comments that
have not been resolved on a given PR. A comment is considered unresolved
if its 'resolver' field is null.

Usage: mise run pr-comments <pr_number>
"""

import sys

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

FORGE_API_BASE = "https://forge.tail8d86e.ts.net/api/v1"
REPO_OWNER = "eblume"
REPO_NAME = "blumeops"


def get_reviews(client: httpx.Client, pr_number: int) -> list[dict]:
    """Get all reviews for a pull request."""
    response = client.get(
        f"{FORGE_API_BASE}/repos/{REPO_OWNER}/{REPO_NAME}/pulls/{pr_number}/reviews"
    )
    response.raise_for_status()
    return response.json()


def get_review_comments(client: httpx.Client, pr_number: int, review_id: int) -> list[dict]:
    """Get all comments for a specific review."""
    response = client.get(
        f"{FORGE_API_BASE}/repos/{REPO_OWNER}/{REPO_NAME}/pulls/{pr_number}/reviews/{review_id}/comments"
    )
    response.raise_for_status()
    return response.json()


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

    if len(sys.argv) < 2:
        console.print("[red]Error:[/red] Please provide a PR number")
        console.print("Usage: mise run pr-comments <pr_number>")
        return 1

    try:
        pr_number = int(sys.argv[1])
    except ValueError:
        console.print(f"[red]Error:[/red] '{sys.argv[1]}' is not a valid PR number")
        return 1

    unresolved_comments: list[tuple[dict, dict]] = []  # (review, comment) pairs

    with httpx.Client() as client:
        # Get all reviews
        try:
            reviews = get_reviews(client, pr_number)
        except httpx.HTTPStatusError as e:
            if e.response.status_code == 404:
                console.print(f"[red]Error:[/red] PR #{pr_number} not found")
            else:
                console.print(f"[red]Error:[/red] API request failed: {e}")
            return 1

        # For each review, get comments and filter to unresolved
        for review in reviews:
            try:
                comments = get_review_comments(client, pr_number, review["id"])
            except httpx.HTTPStatusError:
                continue  # Skip reviews we can't fetch comments for

            for comment in comments:
                if comment.get("resolver") is None:
                    unresolved_comments.append((review, comment))

    if not unresolved_comments:
        console.print(f"[green]No unresolved comments on PR #{pr_number}[/green]")
        return 0

    # Display unresolved comments
    console.print(f"[bold]Unresolved Comments on PR #{pr_number}[/bold] ({len(unresolved_comments)} comments)")
    console.print("=" * 60)
    console.print()

    for review, comment in unresolved_comments:
        # Header with file path and reviewer
        header = Text()
        path = comment.get("path", "unknown file")
        reviewer = review.get("user", {}).get("login", "unknown")
        header.append(f"{path}", style="bold cyan")
        header.append(f" (by {reviewer})")
        console.print(header)

        # Comment body
        body = comment.get("body", "").strip()
        for line in body.split("\n"):
            console.print(f"  {line}")

        # Link to comment
        html_url = comment.get("html_url", "")
        if html_url:
            console.print(f"  [dim]{html_url}[/dim]")

        console.print()

    return 0


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