gwoe-antragspruefer/tests/test_presse_generator.py

"""Tests fuer app.presse_generator (#170 Phase 4)."""
from __future__ import annotations

import json
import sqlite3
from pathlib import Path
from unittest.mock import patch

import pytest

from app.presse_generator import (
    _build_user_prompt,
    generate_draft,
    get_draft,
    list_drafts,
)


# ─────────────────────────────────────────────────────────────────────────────
# Fixture: DB mit Antrag + News
# ─────────────────────────────────────────────────────────────────────────────


@pytest.fixture
def db_with_antrag_and_news(tmp_path: Path) -> Path:
    db = tmp_path / "test_presse.db"
    conn = sqlite3.connect(str(db))
    conn.execute("""
        CREATE TABLE assessments (
            drucksache TEXT PRIMARY KEY,
            title TEXT,
            bundesland TEXT,
            antrag_zusammenfassung TEXT,
            gwoe_score REAL,
            gwoe_begruendung TEXT,
            empfehlung TEXT
        )
    """)
    conn.execute("""
        CREATE TABLE news_articles (
            url TEXT PRIMARY KEY,
            titel TEXT NOT NULL,
            summary TEXT
        )
    """)
    conn.execute("""
        CREATE TABLE presse_drafts (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            drucksache TEXT NOT NULL,
            bundesland TEXT NOT NULL,
            news_url TEXT NOT NULL,
            news_titel TEXT NOT NULL,
            titel TEXT NOT NULL,
            body TEXT NOT NULL,
            model TEXT NOT NULL,
            created_at TEXT NOT NULL DEFAULT (datetime('now'))
        )
    """)
    conn.execute(
        """INSERT INTO assessments
        (drucksache, title, bundesland, antrag_zusammenfassung,
         gwoe_score, gwoe_begruendung, empfehlung)
        VALUES (?, ?, ?, ?, ?, ?, ?)""",
        (
            "18/A", "Wohnungsbau-Reform-Antrag", "NRW",
            "Antrag fuer mehr sozialen Wohnungsbau",
            8.5, "Stark gemeinwohlorientiert",
            "Uneingeschränkt unterstützen",
        ),
    )
    conn.execute(
        "INSERT INTO news_articles (url, titel, summary) VALUES (?, ?, ?)",
        (
            "https://example.com/wohnen",
            "Wohnungsmarkt im Umbruch",
            "Die Mietpreise steigen weiter, der Bundestag berät heute",
        ),
    )
    conn.commit()
    conn.close()
    return db


# ─────────────────────────────────────────────────────────────────────────────
# _build_user_prompt
# ─────────────────────────────────────────────────────────────────────────────


class TestBuildUserPrompt:
    def test_includes_drucksache(self):
        prompt = _build_user_prompt(
            drucksache="18/A", bundesland="NRW",
            antrag_titel="Test", antrag_zusammenfassung="Summary",
            gwoe_score=7.5, gwoe_begruendung="ok",
            empfehlung="Unterstützen",
            news_titel="News", news_summary="Lead",
            news_url="https://example.com",
        )
        assert "18/A" in prompt
        assert "NRW" in prompt
        assert "7.5" in prompt
        assert "News" in prompt

    def test_handles_missing_zusammenfassung(self):
        prompt = _build_user_prompt(
            drucksache="x", bundesland="x", antrag_titel="x",
            antrag_zusammenfassung="", gwoe_score=5.0,
            gwoe_begruendung="", empfehlung="",
            news_titel="x", news_summary="", news_url="",
        )
        assert "(keine vorhanden)" in prompt


# ─────────────────────────────────────────────────────────────────────────────
# generate_draft (mocked QwenBewerter)
# ─────────────────────────────────────────────────────────────────────────────


class FakeBewerter:
    """Mock fuer QwenBewerter, gibt fixe LLM-Response zurueck."""

    def __init__(self, response: dict):
        self._response = response
        self.last_request = None

    async def bewerte(self, request):
        self.last_request = request
        return self._response


@pytest.mark.asyncio
async def test_generate_draft_persists_record(db_with_antrag_and_news, monkeypatch):
    bewerter = FakeBewerter({
        "titel": "Wohnungsbau jetzt",
        "body": "Der vorliegende Antrag der Drucksache 18/A ..."
                * 10,  # langer Body
    })
    # Patch settings.dashscope_model fuer den INSERT
    from app.config import settings as real_settings
    monkeypatch.setattr(real_settings, "llm_model_default", "qwen-test")
    result = await generate_draft(
        drucksache="18/A",
        news_url="https://example.com/wohnen",
        db_path=db_with_antrag_and_news,
        bewerter=bewerter,
    )

    assert result["id"] == 1
    assert result["drucksache"] == "18/A"
    assert result["bundesland"] == "NRW"
    assert result["news_titel"] == "Wohnungsmarkt im Umbruch"
    assert result["titel"] == "Wohnungsbau jetzt"
    assert "18/A" in result["body"]


@pytest.mark.asyncio
async def test_generate_draft_unknown_drucksache(db_with_antrag_and_news):
    bewerter = FakeBewerter({"titel": "x", "body": "y"})
    with pytest.raises(ValueError, match="Drucksache"):
        await generate_draft(
            drucksache="99/MISSING",
            news_url="https://example.com/wohnen",
            db_path=db_with_antrag_and_news,
            bewerter=bewerter,
        )


@pytest.mark.asyncio
async def test_generate_draft_unknown_news(db_with_antrag_and_news):
    bewerter = FakeBewerter({"titel": "x", "body": "y"})
    with pytest.raises(ValueError, match="News-URL"):
        await generate_draft(
            drucksache="18/A",
            news_url="https://example.com/missing",
            db_path=db_with_antrag_and_news,
            bewerter=bewerter,
        )


@pytest.mark.asyncio
async def test_generate_draft_empty_response_raises(db_with_antrag_and_news, monkeypatch):
    bewerter = FakeBewerter({"titel": "", "body": ""})
    from app.config import settings as real_settings
    monkeypatch.setattr(real_settings, "llm_model_default", "qwen-test")
    with pytest.raises(ValueError, match="unvollständig"):
        await generate_draft(
            drucksache="18/A",
            news_url="https://example.com/wohnen",
            db_path=db_with_antrag_and_news,
            bewerter=bewerter,
        )


# ─────────────────────────────────────────────────────────────────────────────
# list_drafts + get_draft
# ─────────────────────────────────────────────────────────────────────────────


class TestListAndGetDrafts:
    def test_empty(self, db_with_antrag_and_news):
        assert list_drafts(db_path=db_with_antrag_and_news) == []
        assert get_draft(99, db_path=db_with_antrag_and_news) is None

    def test_after_insert(self, db_with_antrag_and_news):
        # Direct DB-Insert (test setup)
        conn = sqlite3.connect(str(db_with_antrag_and_news))
        conn.execute(
            """INSERT INTO presse_drafts
            (drucksache, bundesland, news_url, news_titel, titel, body, model)
            VALUES (?, ?, ?, ?, ?, ?, ?)""",
            ("18/A", "NRW", "https://x.de/n", "News-Titel",
             "PM-Titel", "PM-Body", "test-model"),
        )
        conn.commit()
        conn.close()

        drafts = list_drafts(db_path=db_with_antrag_and_news)
        assert len(drafts) == 1
        assert drafts[0]["drucksache"] == "18/A"
        assert drafts[0]["titel"] == "PM-Titel"

        d = get_draft(drafts[0]["id"], db_path=db_with_antrag_and_news)
        assert d is not None
        assert d["body"] == "PM-Body"