"""Tests for T03 — Evidence & report storage (FR-1400)."""

from __future__ import annotations

import json
from pathlib import Path

import pytest

from markidocx.evidence import EvidenceStore, ReportContext, RunReport


@pytest.fixture()
def store(tmp_path: Path) -> EvidenceStore:
    return EvidenceStore(base_dir=tmp_path / "evidence")


# ---------------------------------------------------------------------------
# EvidenceStore basics (FR-1401–FR-1404)
# ---------------------------------------------------------------------------


def test_new_run_id_is_unique(store: EvidenceStore) -> None:
    ids = {store.new_run_id() for _ in range(10)}
    assert len(ids) == 10


def test_save_and_get_report(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    data = {"status": "ok", "project": "Test", "warnings": [], "errors": []}
    store.save_report(run_id, "validation", data)
    report = store.get_report(run_id, "validation")
    assert report is not None
    assert report.run_id == run_id
    assert report.report_type == "validation"
    assert report.data["status"] == "ok"


def test_get_missing_report_returns_none(store: EvidenceStore) -> None:
    assert store.get_report("nonexistent-id", "validation") is None


def test_save_report_writes_json_file(store: EvidenceStore, tmp_path: Path) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "build", {"status": "ok", "warnings": [], "errors": []})
    path = tmp_path / "evidence" / run_id / "build.json"
    assert path.exists()
    content = json.loads(path.read_text())
    assert content["report_type"] == "build"


def test_save_all_report_types(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    for rtype in ("validation", "build", "import", "drift"):
        store.save_report(run_id, rtype, {"status": "ok", "warnings": [], "errors": []})
    reports = store.list_reports(run_id)
    types = {r.report_type for r in reports}
    assert types == {"validation", "build", "import", "drift"}


# ---------------------------------------------------------------------------
# List and retrieve (FR-1409)
# ---------------------------------------------------------------------------


def test_list_runs_empty(store: EvidenceStore) -> None:
    assert store.list_runs() == []


def test_list_runs_after_save(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "validation", {"status": "ok", "warnings": [], "errors": []})
    assert run_id in store.list_runs()


def test_list_reports_empty_for_unknown_run(store: EvidenceStore) -> None:
    assert store.list_reports("no-such-run") == []


def test_list_reports_returns_all(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "validation", {"status": "ok", "warnings": [], "errors": []})
    store.save_report(run_id, "build", {"status": "ok", "warnings": [], "errors": []})
    reports = store.list_reports(run_id)
    assert len(reports) == 2


# ---------------------------------------------------------------------------
# Traceability fields (FR-1410)
# ---------------------------------------------------------------------------


def test_report_context_stored_and_retrieved(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    ctx = ReportContext(project="TestDoc", family="article", feature_level="level1", workflow="single-file-roundtrip")
    store.save_report(run_id, "validation", {"status": "ok", "warnings": [], "errors": []}, context=ctx)
    report = store.get_report(run_id, "validation")
    assert report is not None
    assert report.context.project == "TestDoc"
    assert report.context.family == "article"
    assert report.context.feature_level == "level1"
    assert report.context.workflow == "single-file-roundtrip"


def test_report_has_timestamp(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "build", {"status": "ok", "warnings": [], "errors": []})
    report = store.get_report(run_id, "build")
    assert report is not None
    assert report.created_at  # non-empty ISO timestamp


# ---------------------------------------------------------------------------
# EvidenceSet assembly (FR-1406–FR-1408)
# ---------------------------------------------------------------------------


def test_assemble_set(store: EvidenceStore) -> None:
    run1 = store.new_run_id()
    run2 = store.new_run_id()
    store.save_report(run1, "build", {"status": "ok", "warnings": [], "errors": []})
    store.save_report(run2, "import", {"status": "ok", "warnings": [], "errors": []})
    ev_set = store.assemble_set([run1, run2])
    assert len(ev_set.reports) == 2
    assert set(ev_set.run_ids) == {run1, run2}


def test_evidence_set_classification_pass(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "build", {"status": "ok", "warnings": [], "errors": []})
    ev_set = store.assemble_set([run_id])
    assert ev_set.classification == "pass"


def test_evidence_set_classification_pass_with_warnings(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "build", {"status": "ok", "warnings": ["some warning"], "errors": []})
    ev_set = store.assemble_set([run_id])
    assert ev_set.classification == "pass-with-warnings"


def test_evidence_set_classification_failed(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "build", {"status": "error", "warnings": [], "errors": ["oops"]})
    ev_set = store.assemble_set([run_id])
    assert ev_set.classification == "failed"


def test_evidence_set_composition(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "validation", {"status": "ok", "warnings": [], "errors": []})
    ev_set = store.assemble_set([run_id])
    comp = ev_set.composition
    assert len(comp) == 1
    assert comp[0]["run_id"] == run_id
    assert comp[0]["type"] == "validation"


def test_evidence_set_summary_keys(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "build", {"status": "ok", "warnings": [], "errors": []})
    ev_set = store.assemble_set([run_id])
    summary = ev_set.summary()
    assert "classification" in summary
    assert "run_count" in summary
    assert "report_count" in summary
    assert "complete" in summary
    assert "warnings_count" in summary
    assert "composition" in summary


# ---------------------------------------------------------------------------
# Human-readable and machine-readable output (FR-1411, FR-1412)
# ---------------------------------------------------------------------------


def test_to_markdown(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "build", {"status": "ok", "warnings": [], "errors": []})
    md = store.to_markdown(run_id)
    assert run_id in md
    assert "Build" in md


def test_to_json(store: EvidenceStore) -> None:
    run_id = store.new_run_id()
    store.save_report(run_id, "build", {"status": "ok", "warnings": [], "errors": []})
    raw = store.to_json(run_id)
    parsed = json.loads(raw)
    assert parsed["run_id"] == run_id
    assert len(parsed["reports"]) == 1


# ---------------------------------------------------------------------------
# RunReport round-trip serialisation
# ---------------------------------------------------------------------------


def test_run_report_to_from_dict() -> None:
    ctx = ReportContext(project="P", family="article")
    r = RunReport(
        run_id="abc",
        report_type="build",
        data={"status": "ok", "warnings": [], "errors": []},
        created_at="2026-01-01T00:00:00+00:00",
        context=ctx,
    )
    d = r.to_dict()
    r2 = RunReport.from_dict(d)
    assert r2.run_id == "abc"
    assert r2.context.project == "P"
    assert r2.context.family == "article"