"""A compact command catalog over maintained project tools."""

from __future__ import annotations

import argparse
import importlib
import json
from pathlib import Path
import sys

from . import __version__
from .common import META_ROOT, redact, safe_output

COMMAND_MODULES = (
    "context",
    "doctor",
    "runner",
    "review",
    "docs",
    "issues",
    "release",
    "maintenance",
)


def main(argv: list[str] | None = None) -> int:
    argv = sys.argv[1:] if argv is None else argv
    common = argparse.ArgumentParser(add_help=False, allow_abbrev=False)
    common.add_argument(
        "--workspace-root",
        type=Path,
        default=META_ROOT.parent,
        help="Directory containing registered repositories",
    )
    common.add_argument(
        "--project", type=Path, help="Explicit trusted portable-project JSON manifest"
    )
    common.add_argument(
        "--state-dir",
        type=Path,
        help="Private evidence-state base (scoped again by workspace)",
    )
    common.add_argument("--format", choices=("summary", "json"), default="summary")
    common.add_argument(
        "--quiet",
        action="store_true",
        help="Suppress live progress on stderr; retain the final result",
    )
    common.add_argument(
        "--json",
        dest="format",
        action="store_const",
        const="json",
        help="Alias for --format json",
    )
    parser = argparse.ArgumentParser(
        prog="devkit",
        description="Deterministic development workflows. Read-only previews by default for remote writes.",
        parents=[common],
        allow_abbrev=False,
    )
    parser.add_argument("--version", action="version", version=f"devkit {__version__}")
    subparsers = parser.add_subparsers(dest="command", required=True)
    for name in COMMAND_MODULES:
        importlib.import_module("." + name, __package__).register(subparsers)
    catalog = subparsers.add_parser("commands", help="Show the compact command catalog")

    def commands(_):
        entries = [
            {
                "command": "context",
                "purpose": "Offline repository changes, ownership and instructions",
                "effects": "read only",
            },
            {
                "command": "doctor",
                "purpose": "Local tool/dependency preflight and repair guidance",
                "effects": "read only",
            },
            {
                "command": "check",
                "purpose": "Registered verification profiles with logs and source-bound receipts",
                "effects": "tests/builds; --dry-run previews",
            },
            {
                "command": "runs / latest / status / summary / logs",
                "purpose": "Find runs and read progress, compact results and bounded live/final logs",
                "effects": "read only",
            },
            {
                "command": "coverage",
                "purpose": "Explain declared suite coverage and exclusions for a check profile",
                "effects": "read only",
            },
            {
                "command": "resume / recover",
                "purpose": "Resume verified identical work or recover an abandoned check run",
                "effects": "local checks/state only",
            },
            {
                "command": "review",
                "purpose": "Module UI-review inventory and manual evidence checklist",
                "effects": "local bundle only",
            },
            {
                "command": "docs",
                "purpose": "Existing documentation and translation audits",
                "effects": "local checks/evidence",
            },
            {
                "command": "issues",
                "purpose": "Preview and explicitly publish deduplicated issue evidence",
                "effects": "remote only with --apply",
            },
            {
                "command": "release",
                "purpose": "Existing durable release lifecycle, receipts and confirmations",
                "effects": "explicit --apply and step confirmation",
            },
            {
                "command": "git",
                "purpose": "Frozen explicit-path commit and branch-push maintenance",
                "effects": "explicit --apply; no bulk staging, force or tags",
            },
        ]
        return {
            "commands": entries,
            "summary": [
                f"{item['command']}: {item['purpose']} ({item['effects']})"
                for item in entries
            ],
        }

    catalog.set_defaults(handler=commands)
    # Global flags work before or after the command, without copying defaults to every parser.
    global_args, remaining = common.parse_known_args(argv)
    args = parser.parse_args(remaining, namespace=global_args)
    args.workspace_root = args.workspace_root.expanduser().resolve()
    if args.project:
        args.project = args.project.expanduser().absolute()

    def progress(event):
        if args.quiet:
            return
        if args.format == "json":
            print(
                json.dumps(safe_output(event), sort_keys=True, allow_nan=False),
                file=sys.stderr,
                flush=True,
            )
        else:
            counts = event["counts"]
            completed = sum(
                count
                for state, count in counts.items()
                if state not in {"pending", "running"}
            )
            active = ", ".join(event["active_stages"])
            print(
                redact(
                    f"Run {event['run_id']}: {event['phase']} · {completed}/{event['total_stages']} stages · {event['elapsed_seconds']}s"
                    + (f" · {active}" if active else "")
                ),
                file=sys.stderr,
                flush=True,
            )

    args.on_progress = progress
    try:
        result = args.handler(args)
        if not isinstance(result, dict):
            raise ValueError("Command did not return a result object")
        code = int(result.pop("_exit_code", 0))
        if args.format == "json":
            print(
                json.dumps(
                    safe_output(result),
                    sort_keys=True,
                    indent=2,
                    ensure_ascii=True,
                    allow_nan=False,
                )
            )
        else:
            summary = result.get("summary", [str(result.get("status", "Completed"))])
            print(
                "\n".join(redact(str(line)) for line in summary)
                if isinstance(summary, list)
                else redact(str(summary))
            )
        return code
    except (ValueError, OSError, RuntimeError, ImportError) as exc:
        message = redact(str(exc))
        if args.format == "json":
            print(
                json.dumps(
                    {
                        "status": "error",
                        "error": message,
                        "error_type": type(exc).__name__,
                    }
                )
            )
        else:
            print(f"devkit: {message}", file=sys.stderr)
        return 2
    except KeyboardInterrupt:
        print(
            "devkit: interrupted; inspect the saved run before retrying",
            file=sys.stderr,
        )
        return 130