from __future__ import annotations

import json
import subprocess
import sys
from pathlib import Path


SCRIPT = Path(__file__).resolve().parents[2] / "scripts" / "run_accuracy_phase3_full_data_scan.py"


def run_scan(
    repo: Path,
    output: Path,
    *,
    resume: bool = False,
    unreachable_scopes: tuple[str, ...] = (),
) -> dict:
    command = [
        sys.executable,
        str(SCRIPT),
        "--repo-root",
        str(repo),
        "--output-dir",
        str(output),
        "--roots",
        "data",
        "--batch-size",
        "2",
    ]
    if resume:
        command.append("--resume")
    for scope in unreachable_scopes:
        command.extend(("--unreachable-scope", scope))
    completed = subprocess.run(command, check=True, capture_output=True, text=True)
    return json.loads(completed.stdout)


def test_phase3_scan_reconciles_and_resumes_deterministically(tmp_path: Path) -> None:
    data = tmp_path / "data"
    data.mkdir()
    (data / "valid.geojson").write_text(
        json.dumps(
            {
                "type": "FeatureCollection",
                "features": [
                    {
                        "type": "Feature",
                        "properties": {"source": "GRB"},
                        "geometry": {"type": "Point", "coordinates": [4.4, 50.8]},
                    }
                ],
            }
        ),
        encoding="utf-8",
    )
    invalid = data / "invalid.geojson"
    invalid.write_text(
        '{"type":"FeatureCollection","features":[{"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[0,0],[1,1],[1,0],[0,1],[0,0]]]}}]}',
        encoding="utf-8",
    )
    duplicate_payload = '{"schema_version":1,"value":"same"}'
    (data / "one.json").write_text(duplicate_payload, encoding="utf-8")
    (data / "two.json").write_text(duplicate_payload, encoding="utf-8")
    (data / "broken.tif").write_bytes(b"not a geotiff")

    output = tmp_path / "evidence"
    unreachable_scopes = (
        "external://tower-corpora=Tower corpora are not mounted in this fixture",
        "external://mounted-model-volumes=Model volumes are not mounted in this fixture",
        "external://production-postgis-or-api=Production database is not configured in this fixture",
    )
    first = run_scan(tmp_path, output, unreachable_scopes=unreachable_scopes)
    second = run_scan(
        tmp_path,
        output,
        resume=True,
        unreachable_scopes=unreachable_scopes,
    )
    manifest = json.loads((output / "full-scan-manifest.json").read_text(encoding="utf-8"))
    quarantine = json.loads((output / "quarantine-manifest.json").read_text(encoding="utf-8"))

    assert first["reconciliation"] == {"examined": 5, "skipped": 0, "unreachable": 3, "inventory_total": 8, "reconciles": True}
    assert second["content_hash"] == first["content_hash"]
    assert manifest["determinism"]["content_hash"] == first["content_hash"]
    assert any(item["path"] == "data/broken.tif" for item in quarantine["items"])
    assert any(item["path"] == "data/invalid.geojson" for item in quarantine["items"])
    assert len(manifest["duplicates"]["exact_duplicate_groups"]) == 1


def test_phase3_scan_does_not_invent_unreachable_production_boundaries(
    tmp_path: Path,
) -> None:
    data = tmp_path / "data"
    data.mkdir()
    (data / "present.json").write_text("{}", encoding="utf-8")
    output = tmp_path / "evidence"

    result = run_scan(tmp_path, output)

    assert result["reconciliation"] == {
        "examined": 1,
        "skipped": 0,
        "unreachable": 0,
        "inventory_total": 1,
        "reconciles": True,
    }


def test_phase3_scan_records_a_missing_requested_root(tmp_path: Path) -> None:
    output = tmp_path / "evidence"
    completed = subprocess.run(
        [
            sys.executable,
            str(SCRIPT),
            "--repo-root",
            str(tmp_path),
            "--output-dir",
            str(output),
            "--roots",
            "missing-data",
        ],
        check=True,
        capture_output=True,
        text=True,
    )
    result = json.loads(completed.stdout)
    manifest = json.loads((output / "full-scan-manifest.json").read_text(encoding="utf-8"))

    assert result["reconciliation"]["unreachable"] == 1
    assert manifest["items"][0]["path"] == "root://missing-data"