from __future__ import annotations

import subprocess
from pathlib import Path

from repo_manager.commands import registrar_reconcile as rr


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


def _fixture(tmp_path: Path) -> Path:
    bare = tmp_path / "remote.git"
    repo = tmp_path / "demo"
    _git(tmp_path, "init", "--bare", str(bare))
    _git(tmp_path, "clone", str(bare), str(repo))
    _git(repo, "config", "user.name", "Test")
    _git(repo, "config", "user.email", "test@example.com")
    (repo / "workplans").mkdir()
    (repo / "workplans" / "DEMO-WP-0001.md").write_text(
        """---
id: DEMO-WP-0001
type: workplan
title: Demo
status: active
---

## Task

```task
id: DEMO-WP-0001-T01
status: todo
priority: high
```
""",
        encoding="utf-8",
    )
    _git(repo, "add", ".")
    _git(repo, "commit", "-m", "seed")
    _git(repo, "push", "-u", "origin", "HEAD")
    return repo


def test_requires_explicit_primary_confirmation(tmp_path: Path) -> None:
    repo = _fixture(tmp_path)
    result = rr.registrar_reconcile(repo)
    assert result.status == "rejected"
    assert result.error and result.error["code"] == "confirmation_required"


def test_closed_records_are_not_registrar_work(tmp_path: Path) -> None:
    repo = _fixture(tmp_path)
    workplan = repo / "workplans" / "DEMO-WP-0001.md"
    workplan.write_text(
        workplan.read_text(encoding="utf-8").replace("status: active", "status: finished"),
        encoding="utf-8",
    )
    assert rr._missing_identifiers(repo) == {
        "workplans": [],
        "tasks": [],
        "intakes": [],
        "decisions": [],
    }


def test_rejects_dirty_or_unsynced_repository(tmp_path: Path, monkeypatch) -> None:
    repo = _fixture(tmp_path)
    monkeypatch.setattr(rr, "_check_primary", lambda _api: ({"status": "ok", "db": "connected"}, None))
    (repo / "note.txt").write_text("dirty", encoding="utf-8")
    dirty = rr.registrar_reconcile(repo, confirm_primary=True)
    assert dirty.status == "rejected"
    assert dirty.error and dirty.error["code"] == "git_precondition_failed"


def test_missing_scan_includes_intakes_and_decisions(tmp_path: Path) -> None:
    repo = _fixture(tmp_path)
    records = repo / "intakes" / "records.md"
    records.parent.mkdir()
    records.write_text(
        """# Records

```yaml
id: DEMO-IN-0001
kind: intake
title: Intake
status: open
```

```yaml
id: DEMO-DEC-0001
kind: decision
title: Decision
status: open
```
""",
        encoding="utf-8",
    )
    missing = rr._missing_identifiers(repo)
    assert missing["intakes"] == ["DEMO-IN-0001"]
    assert missing["decisions"] == ["DEMO-DEC-0001"]


def test_scopes_registrar_env_and_commits_assigned_ids(tmp_path: Path, monkeypatch) -> None:
    repo = _fixture(tmp_path)
    monkeypatch.setattr(rr, "_check_primary", lambda _api: ({"status": "ok", "db": "connected"}, None))

    def fake_run(command, *, env):
        assert command[1:3] == ["fix-consistency", "--path"]
        assert env["STATEHUB_REGISTRAR"] == "1"
        workplan = repo / "workplans" / "DEMO-WP-0001.md"
        text = workplan.read_text(encoding="utf-8")
        text = text.replace("status: active\n---", 'status: active\nstate_hub_workstream_id: "11111111-1111-4111-8111-111111111111"\n---')
        text = text.replace("priority: high\n```", 'priority: high\nstate_hub_task_id: "22222222-2222-4222-8222-222222222222"\n```')
        workplan.write_text(text, encoding="utf-8")
        return subprocess.CompletedProcess(command, 0, "ok", "")

    monkeypatch.setattr(rr, "_run_statehub", fake_run)

    result = rr.registrar_reconcile(
        repo,
        statehub_bin="statehub",
        confirm_primary=True,
    )

    assert result.status == "applied"
    assert result.evidence["missing_after"] == {
        "workplans": [],
        "tasks": [],
        "intakes": [],
        "decisions": [],
    }
    subject = subprocess.run(
        ["git", "log", "-1", "--format=%s"], cwd=repo, capture_output=True, text=True, check=True
    ).stdout.strip()
    assert subject == "chore(registrar): assign State Hub identifiers"