import json
import os
from pathlib import Path

import pytest

from sdlc_hub.core import api, cli, paths, release, settings

FIXTURE = Path(__file__).parent / "fixtures" / "config.example.json"


def test_init_import_tokens(tmp_path, monkeypatch, capsys, open_db):
    monkeypatch.setenv("SDLC_HUB_HOME", str(tmp_path / "home"))
    assert cli.main(["init", "--config", str(FIXTURE)]) == 0
    out = capsys.readouterr().out
    assert "transitions_map" in out and "агент jira: " in out
    assert cli.main(["init", "--config", str(FIXTURE)]) == 1
    assert "уже инициализирован" in capsys.readouterr().err
    conn = open_db(paths.db_path())
    assert [(x["label"], x["name"], x["board_id"]) for x in api.project_rows(conn)] == [("AWPCA", "АРМ КА", 4216)]
    assert settings.get(conn, "board_id") is None
    assert "проект AWPCA «АРМ КА», доска 4216" in out
    assert cli.main(["init", "--config", str(FIXTURE), "--force"]) == 0
    capsys.readouterr()
    assert [(x["label"], x["board_id"]) for x in api.project_rows(conn)] == [("AWPCA", 4216)]
    (tmp_path / "pkg").mkdir()
    (tmp_path / "pkg" / "tasks.csv").write_text("Код,Статус по факту,Вид работы\nAURORA-1,В работе,UI\n", encoding="utf-8")
    assert cli.main(["import", str(tmp_path / "pkg")]) == 0
    rep = json.loads(capsys.readouterr().out)
    assert rep["notes"] == 1 and rep["missing_keys"] == ["AURORA-1"]
    assert cli.main(["tokens"]) == 0
    assert settings.tokens(conn)["client"] in capsys.readouterr().out


def test_agent_publish(tmp_path, monkeypatch, capsys):
    monkeypatch.setenv("SDLC_HUB_HOME", str(tmp_path / "home"))
    src = tmp_path / "agent.py"
    src.write_text("AGENT_VERSION = 6\n", encoding="utf-8")
    assert cli.main(["agent", "publish", str(src)]) == 0
    out = capsys.readouterr().out
    assert out.startswith("опубликована v6, sha256 ") and "…, 18 байт" in out
    assert (release.module_dir(paths.release_root(), "jira") / "manifest.json").exists()
    assert cli.main(["agent", "publish", str(src)]) == 1
    assert "опубликована v6, новая должна быть больше" in capsys.readouterr().err


def test_agent_publish_write_failure(tmp_path, monkeypatch, capsys):
    """Диск полон при записи манифеста: сообщение и код 1 без трейсбека, опубликованной остаётся v8 (M-1 #25)."""
    monkeypatch.setenv("SDLC_HUB_HOME", str(tmp_path / "home"))
    src = tmp_path / "agent.py"
    src.write_text("AGENT_VERSION = 8\n", encoding="utf-8")
    assert cli.main(["agent", "publish", str(src)]) == 0
    capsys.readouterr()
    real = os.replace

    def fake(s, d, *a, **kw):
        if Path(d).name == "manifest.json":
            raise OSError(28, "No space left on device")
        return real(s, d, *a, **kw)

    monkeypatch.setattr(os, "replace", fake)
    src.write_text("AGENT_VERSION = 9\n", encoding="utf-8")
    assert cli.main(["agent", "publish", str(src)]) == 1
    err = capsys.readouterr().err
    assert err.startswith("не удалось записать публикацию: ") and "Traceback" not in err
    monkeypatch.setattr(os, "replace", real)
    assert release.load(release.module_dir(paths.release_root(), "jira"))["version"] == 8
    assert sorted(p.name for p in release.module_dir(paths.release_root(), "jira").iterdir()) == ["agent.py", "manifest.json"]


def test_mcp_module_required(monkeypatch, capsys):
    from sdlc_hub.core import mcp as core_mcp
    from sdlc_hub.modules.jira import mcp as jira_mcp
    seen = []
    monkeypatch.setattr(core_mcp, "PROJECT", None)      # run() пишет глобал; monkeypatch вернёт прежнее значение
    monkeypatch.setattr(jira_mcp.mcp, "run", lambda transport="stdio": seen.append(core_mcp.PROJECT))
    assert cli.main(["mcp", "--project", "AWPCA"]) == 2
    err = capsys.readouterr().err
    assert "укажите модуль: sdlc-hub mcp <модуль>" in err and "jira, wiki" in err
    assert seen == []
    assert cli.main(["mcp", "jira", "--project", "AWPCA"]) == 0
    assert seen == ["AWPCA"]


def test_mcp_unknown_module(monkeypatch, capsys):
    from sdlc_hub.modules.jira import mcp as jira_mcp
    seen = []
    monkeypatch.setattr(jira_mcp.mcp, "run", lambda transport="stdio": seen.append(transport))
    assert cli.main(["mcp", "nope"]) == 2
    err = capsys.readouterr().err
    assert "неизвестный модуль nope" in err and "jira" in err
    assert seen == []


def test_agent_publish_migrates_old_layout(tmp_path, monkeypatch, capsys):
    """M-3: корневые agent.py/manifest.json прежней раскладки переезжают в release/jira/ до проверки «только вверх»."""
    monkeypatch.setenv("SDLC_HUB_HOME", str(tmp_path))
    rel = tmp_path / "release"
    rel.mkdir()
    old = tmp_path / "old.py"
    old.write_text("AGENT_VERSION = 14\n", encoding="utf-8")
    release.publish(rel, old)                                      # прежняя раскладка: release/agent.py + manifest.json
    new = tmp_path / "new.py"
    new.write_text("AGENT_VERSION = 13\n", encoding="utf-8")
    assert cli.main(["agent", "publish", str(new)]) == 1           # v13 < v14: «только вверх» видит прежнюю публикацию
    assert not (rel / "agent.py").exists() and not (rel / "manifest.json").exists()
    assert json.loads((rel / "jira" / "manifest.json").read_text(encoding="utf-8"))["version"] == 14


def _homes(monkeypatch, tmp_path, legacy=True, new=False):
    monkeypatch.delenv("SDLC_HUB_HOME", raising=False)
    monkeypatch.setenv("HOME", str(tmp_path))
    share = tmp_path / ".local" / "share"
    if legacy: (share / "jira-hub").mkdir(parents=True)
    if new: (share / "sdlc-hub").mkdir(parents=True)
    return share


@pytest.mark.parametrize("argv", [["serve"], ["tokens"], ["mcp", "jira"], ["agent", "publish", "x.py"]])
def test_legacy_home_refused(monkeypatch, tmp_path, capsys, argv):
    share = _homes(monkeypatch, tmp_path)
    assert cli.main(argv) == 2
    err = capsys.readouterr().err
    assert "~/.local/share/jira-hub" in err and "scripts/cutover.sh" in err
    assert not (share / "sdlc-hub").exists()
    assert sorted(p.name for p in (share / "jira-hub").iterdir()) == []


def test_both_homes_warn(monkeypatch, tmp_path, capsys):
    _homes(monkeypatch, tmp_path, new=True)
    cli.main(["tokens"])
    assert "прежний каталог ~/.local/share/jira-hub можно удалить" in capsys.readouterr().err


def test_env_home_skips_legacy_check(monkeypatch, tmp_path, capsys):
    _homes(monkeypatch, tmp_path)
    monkeypatch.setenv("SDLC_HUB_HOME", str(tmp_path / "x"))
    assert cli.main(["tokens"]) == 0