"""Smoke-Tests für die neuen API-Endpoints.

Diese Tests prüfen nur ob die Endpoints antworten und das richtige
Format zurückgeben — keine echten LLM-Calls oder DB-Writes.
"""
import pytest

# Skip wenn die App nicht importierbar ist (missing dependencies lokal)
try:
    from fastapi.testclient import TestClient
    from app.main import app
    from app.auth import _is_auth_enabled
    client = TestClient(app)
    _HAS_APP = True
    _AUTH_ON = _is_auth_enabled()
except ImportError:
    _HAS_APP = False
    _AUTH_ON = False
    client = None


pytestmark = pytest.mark.skipif(not _HAS_APP, reason="app.main not importable")
auth_required = pytest.mark.skipif(
    not _AUTH_ON,
    reason="Keycloak nicht konfiguriert — Auth-Wall ist deaktiviert (Dev-Modus)",
)


class TestQueueStatus:
    def test_returns_json(self):
        resp = client.get("/api/queue/status")
        assert resp.status_code == 200
        data = resp.json()
        assert "pending" in data
        assert "workers_running" in data

    def test_pending_starts_at_zero(self):
        data = client.get("/api/queue/status").json()
        assert data["pending"] == 0


class TestAuthMe:
    def test_unauthenticated_returns_false(self):
        resp = client.get("/api/auth/me")
        assert resp.status_code == 200
        data = resp.json()
        assert data["authenticated"] is False


class TestAuthLoginUrl:
    def test_returns_enabled_flag(self):
        resp = client.get("/api/auth/login-url")
        assert resp.status_code == 200
        data = resp.json()
        assert "enabled" in data


class TestBundeslaender:
    def test_returns_list(self):
        resp = client.get("/api/bundeslaender")
        assert resp.status_code == 200
        data = resp.json()
        assert isinstance(data, list)
        assert len(data) > 10  # mindestens 10 BLs


class TestProgramme:
    def test_returns_list(self):
        resp = client.get("/api/programme")
        assert resp.status_code == 200
        data = resp.json()
        assert isinstance(data, list)
        assert len(data) > 50  # mindestens 50 Programme

    def test_status_returns_indexed_count(self):
        resp = client.get("/api/programme/status")
        assert resp.status_code == 200
        data = resp.json()
        assert "indexed" in data
        assert "total" in data


class TestHealth:
    def test_health(self):
        resp = client.get("/health")
        assert resp.status_code == 200


class TestVoteOrphansEndpoint:
    """GET /api/auswertungen/vote-orphans (öffentlich)."""

    def test_returns_json_structure(self):
        resp = client.get("/api/auswertungen/vote-orphans?limit=5")
        assert resp.status_code == 200
        data = resp.json()
        assert "count" in data
        assert "items" in data
        assert "by_bundesland" in data
        assert isinstance(data["items"], list)

    def test_filter_bundesland_param(self):
        resp = client.get("/api/auswertungen/vote-orphans?bundesland=NRW&limit=3")
        assert resp.status_code == 200
        data = resp.json()
        # Wenn items vorhanden, alle aus NRW
        for it in data["items"]:
            assert it["bundesland"] == "NRW"


@auth_required
class TestVoteOrphansAutoRateAuth:
    """POST /api/auswertungen/vote-orphans/auto-rate erfordert Admin."""

    def test_unauthenticated_rejected(self):
        resp = client.post(
            "/api/auswertungen/vote-orphans/auto-rate",
            data={"limit": 5},
        )
        # Auth-Wall greift entweder direkt 401, 403 oder Redirect (307/302)
        assert resp.status_code in (401, 403, 307, 302)


@auth_required
class TestBatchAnalyzeAuth:
    """POST /api/batch-analyze erfordert Admin."""

    def test_unauthenticated_rejected(self):
        resp = client.post(
            "/api/batch-analyze",
            data={"bundesland": "NRW", "limit": 5},
        )
        assert resp.status_code in (401, 403, 307, 302)

    def test_all_bl_unauthenticated_also_rejected(self):
        resp = client.post(
            "/api/batch-analyze",
            data={"bundesland": "ALL", "limit": 10},
        )
        assert resp.status_code in (401, 403, 307, 302)


class TestAktuelleThemenEndpoints:
    """GET /api/aktuelle-themen/* sind oeffentlich."""

    def test_top_returns_buckets(self):
        resp = client.get("/api/aktuelle-themen/top?days=7&top_k=3")
        assert resp.status_code == 200
        data = resp.json()
        assert "buckets" in data
        assert "n_total_news" in data
        assert "filter" in data

    def test_top_with_single_date(self):
        resp = client.get("/api/aktuelle-themen/top?date=2026-05-01")
        assert resp.status_code == 200
        data = resp.json()
        assert data["filter"]["single_date"] == "2026-05-01"

    def test_top_with_only_relevant(self):
        resp = client.get("/api/aktuelle-themen/top?only_relevant=true&top_k=5")
        assert resp.status_code == 200
        data = resp.json()
        assert data["filter"]["only_relevant"] is True

    def test_zeitreihe(self):
        resp = client.get("/api/aktuelle-themen/zeitreihe?days=14")
        assert resp.status_code == 200
        data = resp.json()
        assert "buckets" in data
        assert "sources" in data
        assert "series" in data

    def test_top_antraege(self):
        resp = client.get("/api/aktuelle-themen/top-antraege?min_gwoe_score=8.0")
        assert resp.status_code == 200
        data = resp.json()
        assert "antraege" in data

    def test_cluster(self):
        resp = client.get("/api/aktuelle-themen/cluster?days=7")
        assert resp.status_code == 200
        data = resp.json()
        assert "clusters" in data

    def test_drafts_list(self):
        resp = client.get("/api/aktuelle-themen/drafts?limit=5")
        assert resp.status_code == 200
        data = resp.json()
        assert "drafts" in data

    def test_drafts_versions(self):
        resp = client.get(
            "/api/aktuelle-themen/drafts-versions"
            "?drucksache=missing&news_url=https://example.com/x"
        )
        assert resp.status_code == 200
        data = resp.json()
        assert "versions" in data
        assert isinstance(data["versions"], list)


class TestScoreHistogramEndpoint:
    """GET /api/auswertungen/score-histogram (öffentlich)."""

    def test_returns_11_buckets(self):
        resp = client.get("/api/auswertungen/score-histogram")
        assert resp.status_code == 200
        data = resp.json()
        # 11 Buckets: 0–1, 1–2, ..., 10–11
        assert len(data["buckets"]) == 11
        for b in data["buckets"]:
            assert "score_min" in b
            assert "score_max" in b
            assert "count" in b
            assert b["count"] >= 0

    def test_total_matches_sum_of_buckets(self):
        resp = client.get("/api/auswertungen/score-histogram")
        data = resp.json()
        total_sum = sum(b["count"] for b in data["buckets"])
        assert data["total"] == total_sum

    def test_filter_bundesland(self):
        resp = client.get("/api/auswertungen/score-histogram?bundesland=NRW")
        assert resp.status_code == 200
        data = resp.json()
        assert data["filter"]["bundesland"] == "NRW"

    def test_filter_wahlperiode(self):
        resp = client.get("/api/auswertungen/score-histogram?wahlperiode=NRW-WP18")
        assert resp.status_code == 200
        data = resp.json()
        assert data["filter"]["wahlperiode"] == "NRW-WP18"


@auth_required
class TestAdminStandAuth:
    """/v2/admin/stand + /api/admin/stand erfordern Admin."""

    def test_page_unauthenticated_rejected(self):
        resp = client.get("/v2/admin/stand")
        assert resp.status_code in (401, 403, 307, 302)

    def test_api_unauthenticated_rejected(self):
        resp = client.get("/api/admin/stand")
        assert resp.status_code in (401, 403, 307, 302)


class TestStimmverhaltenAggregateEndpoints:
    """Die 7 Stimmverhalten-Aggregat-Endpoints liefern strukturierte JSONs (siehe ADR 0010)."""

    def test_stimm_index_returns_fraktionen(self):
        resp = client.get("/api/auswertungen/stimm-index")
        assert resp.status_code == 200
        data = resp.json()
        assert "fraktionen" in data
        assert isinstance(data["fraktionen"], list)
        assert "n_assessments_matched" in data

    def test_stimm_index_min_n_filter(self):
        resp = client.get("/api/auswertungen/stimm-index?min_n=1")
        assert resp.status_code == 200
        data = resp.json()
        assert data["filter"]["min_n"] == 1

    def test_stimm_index_exclude_antragsteller_default(self):
        """Default `exclude_antragsteller=True`."""
        resp = client.get("/api/auswertungen/stimm-index")
        data = resp.json()
        assert data["filter"]["exclude_antragsteller"] in (True, "true", 1)

    def test_heuchelei_returns_fraktionen(self):
        resp = client.get("/api/auswertungen/heuchelei")
        assert resp.status_code == 200
        data = resp.json()
        assert "fraktionen" in data

    def test_empfehlungs_konsistenz(self):
        resp = client.get("/api/auswertungen/empfehlungs-konsistenz")
        assert resp.status_code == 200
        data = resp.json()
        assert "fraktionen" in data or "items" in data

    def test_stimm_index_pro_wert_5_werte(self):
        resp = client.get("/api/auswertungen/stimm-index-pro-wert")
        assert resp.status_code == 200
        data = resp.json()
        assert "werte" in data
        # 5 GWÖ-Werte: Würde, Solidarität, Nachhaltigkeit, Gerechtigkeit, Demokratie
        assert len(data["werte"]) == 5

    def test_stimm_index_cross_bl(self):
        resp = client.get("/api/auswertungen/stimm-index-cross-bl")
        assert resp.status_code == 200
        data = resp.json()
        assert "fraktionen" in data
        assert "bundeslaender" in data
        assert "cells" in data

    def test_stimm_index_zeitreihe(self):
        resp = client.get("/api/auswertungen/stimm-index-zeitreihe")
        assert resp.status_code == 200
        data = resp.json()
        # Erwartete Felder: buckets (Zeit-Achse), fraktionen, series
        assert "buckets" in data
        assert "fraktionen" in data
        assert "series" in data


class TestStimmverhaltenCsvExport:
    """CSV-Export Long-Format aus #168."""

    def test_csv_returns_text(self):
        resp = client.get("/api/auswertungen/stimmverhalten.csv")
        assert resp.status_code == 200
        ctype = resp.headers.get("content-type", "")
        assert "text/csv" in ctype or "text/plain" in ctype

    def test_csv_has_header_row(self):
        resp = client.get("/api/auswertungen/stimmverhalten.csv")
        body = resp.text
        # Header-Zeile mit den erwarteten Long-Format-Spalten
        first_line = body.split("\n", 1)[0]
        # Mindestens drei Pflicht-Spalten erwartet — Partei statt Fraktion in CSV
        for required in ("drucksache", "bundesland", "partei", "vote"):
            assert required in first_line, f"Spalte {required!r} fehlt im Header: {first_line!r}"

    def test_csv_data_rows_have_consistent_columns(self):
        """Datenzeilen haben gleiche Spalten-Anzahl wie der Header."""
        resp = client.get("/api/auswertungen/stimmverhalten.csv")
        body = resp.text.strip()
        if not body:
            pytest.skip("kein CSV-Body — DB enthält evtl. keine Vote-Matches")
        lines = body.split("\n")
        n_cols = lines[0].count(",") + 1
        for line in lines[1:6]:  # Samples
            assert line.count(",") + 1 == n_cols, f"Spaltenzahl-Mismatch: {line!r}"