from __future__ import annotations

from pathlib import Path

import httpx
import pytest
from backup_tool.api.app import create_app
from backup_tool.config import Settings
from backup_tool.db.models import Execution

PASSWORD = "correct-horse-battery-staple"


async def login(client: httpx.AsyncClient) -> dict[str, str]:
    response = await client.post("/api/v2/setup", json={"username": "admin", "password": PASSWORD})
    assert response.status_code == 201
    return {"X-CSRF-Token": client.cookies["backup_tool_csrf"]}


@pytest.mark.asyncio
async def test_local_source_probe_archive_and_repository_targeted_job(
    tmp_path: Path,
) -> None:
    source_root = tmp_path / "sources"
    source_root.mkdir()
    (source_root / "data.txt").write_text("contents")
    data_dir = tmp_path / "data"
    data_dir.mkdir()
    key = tmp_path / "master.key"
    key.write_bytes(b"x" * 32)
    key.chmod(0o600)
    repositories = tmp_path / "repositories"
    restore = tmp_path / "restore"
    repositories.mkdir()
    restore.mkdir()
    settings = Settings(
        data_dir=data_dir,
        database_url=f"sqlite+aiosqlite:///{data_dir / 'db.sqlite'}",
        repository_roots=(repositories,),
        local_source_roots=(source_root,),
        restore_roots=(restore,),
        master_key_file=key,
    )
    app = create_app(settings)
    from backup_tool.db.models import Base

    async with app.state.engine.begin() as connection:
        await connection.run_sync(Base.metadata.create_all)
    transport = httpx.ASGITransport(app=app)
    async with httpx.AsyncClient(transport=transport, base_url="https://test") as client:
        headers = await login(client)
        repository = await client.post(
            "/api/v2/repositories",
            json={"name": "repo", "relative_path": "main"},
            headers=headers,
        )
        assert repository.status_code == 201
        source = await client.post(
            "/api/v2/sources",
            json={
                "name": "local",
                "kind": "local",
                "public_config": {"root": str(source_root)},
            },
            headers=headers,
        )
        assert source.status_code == 201
        source_id = source.json()["id"]
        probe = await client.post(f"/api/v2/sources/{source_id}/probe", headers=headers)
        assert probe.status_code == 200
        assert probe.json()["entry_count"] == 1
        job = await client.post(
            "/api/v2/jobs",
            json={
                "name": "job",
                "source_id": source_id,
                "repository_id": repository.json()["id"],
                "requested_mode": "full",
                "exclusions": ["*.tmp"],
                "retention": {},
                "enabled": True,
                "allow_empty": False,
            },
            headers=headers,
        )
        assert job.status_code == 201
        assert "destination_path" not in job.json()
        execution = await client.post(
            f"/api/v2/jobs/{job.json()['id']}/executions", headers=headers
        )
        assert execution.status_code == 202
        assert execution.json()["state"] == "queued"
        duplicate = await client.post(
            f"/api/v2/jobs/{job.json()['id']}/executions", headers=headers
        )
        assert duplicate.status_code == 409
        assert duplicate.json()["code"] == "execution_active"
        polled = await client.get(f"/api/v2/executions/{execution.json()['id']}", headers=headers)
        assert polled.status_code == 200
        assert polled.json()["state"] == "queued"
        cancellation = await client.post(
            f"/api/v2/executions/{execution.json()['id']}/cancel", headers=headers
        )
        assert cancellation.status_code == 202
        assert cancellation.json()["state"] == "cancelled"
        async with app.state.sessions() as db:
            stored = await db.get(Execution, execution.json()["id"])
            assert stored is not None
            stored.state = "failed"
            stored.reason_code = "timeout"
            await db.commit()
        retried = await client.post(
            f"/api/v2/executions/{execution.json()['id']}/retry", headers=headers
        )
        assert retried.status_code == 202
        assert retried.json()["id"] == execution.json()["id"]
        assert retried.json()["attempt"] == 2
        stream = await client.get(
            f"/api/v2/executions/{execution.json()['id']}/events", headers=headers
        )
        assert stream.status_code == 200
        assert "event: execution" in stream.text
        archived = await client.delete(f"/api/v2/sources/{source_id}", headers=headers)
        assert archived.status_code == 204
        assert (
            await client.post(f"/api/v2/sources/{source_id}/probe", headers=headers)
        ).status_code == 409


@pytest.mark.asyncio
async def test_local_source_rejects_unallowlisted_root(tmp_path: Path) -> None:
    allowed = tmp_path / "allowed"
    allowed.mkdir()
    outside = tmp_path / "outside"
    outside.mkdir()
    data_dir = tmp_path / "data"
    data_dir.mkdir()
    key = tmp_path / "master.key"
    key.write_bytes(b"x" * 32)
    key.chmod(0o600)
    repositories = tmp_path / "repositories"
    restore = tmp_path / "restore"
    repositories.mkdir()
    restore.mkdir()
    settings = Settings(
        data_dir=data_dir,
        database_url=f"sqlite+aiosqlite:///{data_dir / 'db.sqlite'}",
        repository_roots=(repositories,),
        local_source_roots=(allowed,),
        restore_roots=(restore,),
        master_key_file=key,
    )
    app = create_app(settings)
    from backup_tool.db.models import Base

    async with app.state.engine.begin() as connection:
        await connection.run_sync(Base.metadata.create_all)
    async with httpx.AsyncClient(
        transport=httpx.ASGITransport(app=app), base_url="https://test"
    ) as client:
        headers = await login(client)
        response = await client.post(
            "/api/v2/sources",
            json={
                "name": "bad",
                "kind": "local",
                "public_config": {"root": str(outside)},
            },
            headers=headers,
        )
        assert response.status_code == 422