import pytest
from unittest.mock import patch, AsyncMock


@pytest.mark.asyncio
async def test_get_health_ok(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (0, "All checks passed\n", "")
        response = test_app.get("/api/media/health", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "ok"
        assert data["exit_code"] == 0
        assert "All checks passed" in data["stdout"]


@pytest.mark.asyncio
async def test_get_health_warning(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (1, "Disk >85%\n", "")
        response = test_app.get("/api/media/health", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "warning"


@pytest.mark.asyncio
async def test_get_health_error(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (2, "", "Immich API unreachable")
        response = test_app.get("/api/media/health", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "error"


@pytest.mark.asyncio
async def test_get_health_unavailable(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (999, "", "SSH connection refused")
        response = test_app.get("/api/media/health", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "unavailable"
        assert "NAS unreachable" in data["error"]


@pytest.mark.asyncio
async def test_get_storage(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (
            0,
            '{"timestamp": "2026-07-11T05:37:57Z", "volume": {"path": "/volume1", "total": "14T", "used": "12T", "available": "2.2T", "used_pct": 85}}',
            "",
        )
        response = test_app.get("/api/media/storage", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert "volume" in data
        assert data["volume"]["total"] == "14T"


@pytest.mark.asyncio
async def test_get_storage_unavailable(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (999, "", "SSH timeout")
        response = test_app.get("/api/media/storage", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "unavailable"


@pytest.mark.asyncio
async def test_get_storage_json_parse_error(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (0, "not valid json", "")
        response = test_app.get("/api/media/storage", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert "error" in data
        assert "Failed to parse JSON" in data["error"]


@pytest.mark.asyncio
async def test_get_shuttle_status_idle(test_app, admin_headers):
    """Shuttle not running, no log file."""
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        # First call: cat log, Second call: pgrep -f
        mock_run.side_effect = [
            (0, "NO_LOG", ""),  # cat log
            (1, "", ""),  # pgrep -f (not running)
        ]
        response = test_app.get("/api/media/shuttle/status", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["running"] is False
        assert data["queue_depth"] == 0


@pytest.mark.asyncio
async def test_get_shuttle_status_running(test_app, admin_headers):
    """Shuttle running with log content."""
    log_content = """=== Shuttle Started at 2026-07-11 10:00 ===
--source /Volumes/SD_CARD --dest /Volumes/SSD
Stage 1: copy
[10:01] rsync: 1.2GB copied from SD_CARD to SSD
Stage 2: verify
[10:05] ✅ Verification passed — all files match
[10:06] --stage ship --source /Volumes/SSD --dest naslan:/volume1/video
"""
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.side_effect = [
            (0, log_content, ""),  # cat log
            (0, "12345\n", ""),  # pgrep -f (running)
        ]
        response = test_app.get("/api/media/shuttle/status", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["running"] is True
        assert data["pid"] == "12345"
        assert data["queue_depth"] == 2  # --source entries in log
        assert data["last_transfer"] is not None
        assert "1.2GB" in data.get("last_transfer_size", "")


@pytest.mark.asyncio
async def test_get_shuttle_status_with_errors(test_app, admin_headers):
    """Shuttle log has error lines."""
    log_content = """[10:01] rsync: OK
[10:02] ❌ rsync: failed to transfer file XYZ
[10:03] rsync: 500MB copied
[10:04] ❌ connection reset by peer
"""
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.side_effect = [
            (0, log_content, ""),  # cat log
            (1, "", ""),  # pgrep -f (not running)
        ]
        response = test_app.get("/api/media/shuttle/status", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert len(data["recent_errors"]) == 2


@pytest.mark.asyncio
async def test_get_shuttle_status_unavailable(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (999, "", "SSH timeout")
        response = test_app.get("/api/media/shuttle/status", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "unavailable"


@pytest.mark.asyncio
async def test_run_scan(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (0, "", "")
        response = test_app.post("/api/media/maintenance/scan?library=DJI-Action6", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert "Scan started" in data["message"]
        mock_run.assert_called_once()
        assert "scan-library.sh DJI-Action6" in mock_run.call_args[0][0]


@pytest.mark.asyncio
async def test_run_scan_unavailable(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (999, "", "SSH timeout")
        response = test_app.post("/api/media/maintenance/scan", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "unavailable"


@pytest.mark.asyncio
async def test_get_active_status(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        def side_effect(cmd):
            if "scan-library.sh" in cmd:
                return (0, "1234\n", "")
            return (1, "", "")
        mock_run.side_effect = side_effect
        response = test_app.get("/api/media/status", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["scan"]["running"] is True
        assert data["scan"]["pid"] == "1234"
        assert data["requeue"]["running"] is False


@pytest.mark.asyncio
async def test_get_active_status_unavailable(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (999, "", "SSH timeout")
        response = test_app.get("/api/media/status", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "unavailable"


@pytest.mark.asyncio
async def test_get_logs_shuttle(test_app, admin_headers):
    """Fetch shuttle logs successfully."""
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (0, "line1\nline2\nline3\n", "")
        response = test_app.get("/api/media/logs/shuttle", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert "line1" in data["content"]


@pytest.mark.asyncio
async def test_get_logs_invalid_task(test_app, admin_headers):
    """Invalid task name returns 400."""
    response = test_app.get("/api/media/logs/invalid-task", headers=admin_headers)
    assert response.status_code == 400


@pytest.mark.asyncio
async def test_get_logs_unavailable(test_app, admin_headers):
    with patch("routers.media_mgmt.run_host_command", new_callable=AsyncMock) as mock_run:
        mock_run.return_value = (999, "", "SSH timeout")
        response = test_app.get("/api/media/logs/scan", headers=admin_headers)
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "unavailable"