"""Tests for the feature engineering pipeline."""

import numpy as np
import pandas as pd
import pytest

from src.features.vote_processor import VoteProcessor
from src.features.advanced_metrics import FatigueIndex, PitchTilt, WeatherContext
from src.features.news_rag import NewsRAGPipeline


class TestVoteProcessor:
    def test_fantavote_computation(self):
        """Verify fantavote = vote + goals*3 + assists - yellow*0.5 - red."""
        processor = VoteProcessor()
        df = pd.DataFrame({
            "matchday": [1],
            "player": ["Test Player"],
            "team": ["Team A"],
            "oppteam": ["Team B"],
            "home": [1],
            "vote": [6.5],
            "goals": [1],
            "assists": [1],
            "cards_malus": [0.5],
            "fantavote": [10.0],
        })

        # fantavote should be: 6.5 + 3 + 1 - 0.5 = 10.0
        assert df["fantavote"].iloc[0] == 10.0

    def test_own_goal_deduction(self):
        processor = VoteProcessor()
        scoring = processor.scoring

        vote = 6.0
        goals = 0  # field goal
        own_goals = 1  # own goal
        assists = 0

        goals_net = goals - own_goals
        goals_bonus = max(0, goals_net) * scoring["goal"]
        own_goal_malus = max(0, own_goals) * abs(scoring["own_goal"])
        cards_malus = 0

        fantavote = vote + goals_bonus + 0 - cards_malus - own_goal_malus
        assert fantavote == 6.0 - 2.0  # 6 - 2 for own goal

    def test_compute_player_averages(self):
        processor = VoteProcessor()
        votes = pd.DataFrame({
            "player": ["A", "A", "A", "A", "B", "B"],
            "team": ["T1", "T1", "T1", "T1", "T2", "T2"],
            "vote": [6.0, 7.0, 6.5, 7.5, 6.0, 6.0],
        })

        result = processor.compute_player_averages(votes, min_votes=2)
        assert "vote_avg" in result.columns
        assert result["n_matches"].iloc[0] == 4  # Player A has 4


class TestAdvancedMetrics:
    def test_fatigue_rest_days(self):
        fi = FatigueIndex()
        match_dates = pd.Series(["2026-09-20", "2026-09-27", "2026-10-04"])
        prev_dates = pd.Series(["2026-09-13", "2026-09-20", "2026-09-27"])
        rest = fi.rest_days(match_dates, prev_dates)
        assert all(rest == 7)

    def test_pitch_tilt(self):
        pt = PitchTilt()
        own = np.array([50.0, 100.0])
        opp = np.array([50.0, 50.0])
        tilt = pt.pitch_tilt(own, opp)
        assert abs(tilt[0] - 0.5) < 1e-6
        assert abs(tilt[1] - 2.0 / 3.0) < 1e-6

    def test_field_tilt(self):
        pt = PitchTilt()
        own_passes = np.array([30.0])
        opp_passes = np.array([50.0])
        tilt = pt.field_tilt(own_passes, opp_passes)
        assert abs(tilt[0] - 30 / 80) < 1e-6

    def test_pressure_regain(self):
        pt = PitchTilt()
        efficiency = pt.pressure_regain_efficiency(
            np.array([10.0]), np.array([100.0])
        )
        assert efficiency[0] == 0.1

    def test_weather_context(self):
        ctx = WeatherContext.get_context("Milano", 1)  # January
        assert ctx[0] == "cold"
        assert ctx[1] > 0

        ctx = WeatherContext.get_context("Napoli", 12)  # December
        assert ctx[0] == "warm"


class TestNewsRAG:
    def test_simple_extract_injury(self):
        rag = NewsRAGPipeline()
        entities = rag._simple_extract(
            "Lautaro Martinez infortunio: salta la partita contro il Milan. "
            "L'attaccante ha riportato uno stiramento muscolare."
        )
        injury_entities = [e for e in entities if e["type"] == "INJURY"]
        assert len(injury_entities) > 0

    def test_simple_extract_suspension(self):
        rag = NewsRAGPipeline()
        entities = rag._simple_extract(
            "Barella squalificato per una giornata dopo l'ammonizione. "
            "Salterà il prossimo turno."
        )
        suspension_entities = [e for e in entities if e["type"] == "SUSPENSION"]
        assert len(suspension_entities) > 0

    def test_simple_extract_tactical(self):
        rag = NewsRAGPipeline()
        entities = rag._simple_extract(
            "La Juventus cambia modulo: passa al 3-5-2 contro l'Inter. "
            "Cambiaso e Di Lorenzo sulle fasce."
        )
        tactical_entities = [e for e in entities if e["type"] == "TACTICAL_SHIFT"]
        assert len(tactical_entities) > 0

    def test_to_features(self):
        rag = NewsRAGPipeline()
        entities = [
            {"type": "INJURY", "source_text": "Osimhen injured", "article_link": "", "source": ""},
        ]
        features = rag.to_features(entities, ["Osimhen", "Kvaratskhelia"])
        assert features["news_injury_flag"].iloc[0] == 1
        assert features["news_injury_flag"].iloc[1] == 0