"""Dual-run flags, meter, and hardened task status command."""

from __future__ import annotations

import json
import subprocess
from pathlib import Path

import pytest

from repo_manager import dual_run
from repo_manager.commands.task_status import update_task_status


def _git(repo: Path, *args: str) -> None:
    subprocess.run(["git", *args], cwd=repo, check=True, capture_output=True)


def _fixture(tmp_path: Path) -> Path:
    repo = tmp_path / "pilot"
    repo.mkdir()
    _git(repo, "init")
    _git(repo, "config", "user.email", "t@example.com")
    _git(repo, "config", "user.name", "T")
    (repo / "workplans").mkdir()
    (repo / "workplans" / "P-WP-0001.md").write_text(
        """---
id: P-WP-0001
type: workplan
title: Pilot
status: active
---

## T

```task
id: P-WP-0001-T01
status: todo
state_hub_task_id: "11111111-1111-4111-8111-111111111111"
```

x
""",
        encoding="utf-8",
    )
    _git(repo, "add", ".")
    _git(repo, "commit", "-m", "seed")
    return repo


def test_flags_and_pilot(monkeypatch: pytest.MonkeyPatch):
    monkeypatch.delenv("RM_WRITEBACK", raising=False)
    monkeypatch.delenv("RM_RECONCILE", raising=False)
    monkeypatch.delenv("RM_PILOT_REPOS", raising=False)
    assert dual_run.writeback_enabled() is False

    monkeypatch.setenv("RM_WRITEBACK", "1")
    monkeypatch.setenv("RM_PILOT_REPOS", "repo-manager,other")
    assert dual_run.writeback_for_repo("repo-manager") is True
    assert dual_run.writeback_for_repo("nope") is False

    monkeypatch.delenv("RM_PILOT_REPOS", raising=False)
    assert dual_run.writeback_for_repo("any") is True


def test_meter(tmp_path: Path, monkeypatch: pytest.MonkeyPatch):
    meter = tmp_path / "meter.jsonl"
    monkeypatch.setenv("RM_METER_PATH", str(meter))
    dual_run.record_mutation(
        source="repo-manager",
        kind="test",
        repo_slug="x",
        detail={"a": 1},
    )
    dual_run.record_mutation(source="state-hub", kind="test", repo_slug="x")
    summary = dual_run.meter_summary(meter)
    assert summary["repo-manager"] == 1
    assert summary["state-hub"] == 1
    assert summary["total"] == 2


def test_update_by_uuid_and_idempotency(tmp_path: Path, monkeypatch: pytest.MonkeyPatch):
    repo = _fixture(tmp_path)
    monkeypatch.setenv("RM_METER_PATH", str(tmp_path / "m.jsonl"))
    monkeypatch.setenv("RM_IDEMPOTENCY_PATH", str(tmp_path / "idemp.json"))

    r1 = update_task_status(
        repo,
        "11111111-1111-4111-8111-111111111111",
        "progress",
        idempotency_key="k1",
        repo_slug="pilot",
    )
    assert r1.status == "applied"
    assert r1.evidence.get("git_sha")
    text = (repo / "workplans" / "P-WP-0001.md").read_text(encoding="utf-8")
    assert "status: progress" in text

    r2 = update_task_status(
        repo,
        "11111111-1111-4111-8111-111111111111",
        "progress",
        idempotency_key="k1",
        repo_slug="pilot",
    )
    assert r2.status == "applied"
    assert r2.evidence.get("git_sha") == r1.evidence.get("git_sha")

    # Different payload same key → conflict
    r3 = update_task_status(
        repo,
        "11111111-1111-4111-8111-111111111111",
        "done",
        idempotency_key="k1",
        repo_slug="pilot",
    )
    assert r3.status == "rejected"
    assert r3.error and r3.error.get("code") == "conflict"