"""
Tests for Flywheel Module - Feedback Parser.

Tests email feedback parsing logic.
"""

import pytest
from src.flywheel.feedback_parser import (
    FeedbackParser,
    FeedbackResult,
    FeedbackType,
    get_feedback_parser
)


class TestFeedbackParser:
    """Tests for FeedbackParser class."""
    
    @pytest.fixture
    def parser(self):
        """Create feedback parser."""
        return FeedbackParser()
    
    def test_parse_resolved_portuguese(self, parser):
        """Test resolved detection in Portuguese."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="Obrigado pelo suporte! O problema foi resolvido.",
            subject="Re: Chamado TKT-001"
        )
        
        assert result.feedback_type == FeedbackType.RESOLVED
        assert result.sentiment == "positive"
    
    def test_parse_resolved_english(self, parser):
        """Test resolved detection in English."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="Thanks, the issue is now fixed and working perfectly!",
            subject="Re: Ticket TKT-001"
        )
        
        assert result.feedback_type == FeedbackType.RESOLVED
    
    def test_parse_resolved_emoji(self, parser):
        """Test resolved detection with emoji."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="Funcionou! 👍✅",
            subject="Re: TKT-001"
        )
        
        assert result.feedback_type == FeedbackType.RESOLVED
    
    def test_parse_reopened(self, parser):
        """Test reopened detection."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="O problema ainda persiste. Não foi resolvido.",
            subject="Re: TKT-001"
        )
        
        assert result.feedback_type == FeedbackType.REOPENED
        assert result.sentiment == "negative"
    
    def test_parse_reopened_english(self, parser):
        """Test reopened detection in English."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="The problem is still happening. Not fixed.",
            subject="Re: TKT-001"
        )
        
        assert result.feedback_type == FeedbackType.REOPENED
    
    def test_parse_escalate(self, parser):
        """Test escalation detection."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="URGENTE! Sistema crítico parou, preciso falar com o gerente!",
            subject="URGENTE Re: TKT-001"
        )
        
        assert result.feedback_type == FeedbackType.ESCALATE
    
    def test_parse_clarification(self, parser):
        """Test clarification request detection."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="Como faço para aplicar essa correção? Pode explicar melhor?",
            subject="Re: TKT-001"
        )
        
        assert result.feedback_type == FeedbackType.CLARIFICATION
    
    def test_extract_satisfaction_score(self, parser):
        """Test satisfaction score extraction."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="Resolvido! Nota 5/5 para o atendimento.",
            subject="Re: TKT-001"
        )
        
        assert result.satisfaction_score == 5
    
    def test_extract_satisfaction_thumbs(self, parser):
        """Test satisfaction from thumbs emoji."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="👍👍👍 Excelente suporte!",
            subject="Re: TKT-001"
        )
        
        assert result.satisfaction_score == 5
    
    def test_follow_up_detection(self, parser):
        """Test follow-up request detection."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="Ok, me ligar amanhã para acompanhar.",
            subject="Re: TKT-001"
        )
        
        assert result.follow_up_requested is True
    
    def test_unknown_feedback(self, parser):
        """Test unknown feedback type."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="xyz",  # Genuinely unrecognizable
            subject="Re: TKT-001"
        )
        
        # Short gibberish should be unknown
        assert result.feedback_type == FeedbackType.UNKNOWN
    
    def test_suggested_action_resolved(self, parser):
        """Test suggested action for resolved."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="Problema resolvido, obrigado!",
            subject="Re: TKT-001"
        )
        
        assert "Fechar ticket" in result.suggested_action
    
    def test_suggested_action_reopened(self, parser):
        """Test suggested action for reopened."""
        result = parser.parse(
            ticket_id="TKT-001",
            email_content="Ainda não funciona, problema voltou.",
            subject="Re: TKT-001"
        )
        
        assert "Reabrir" in result.suggested_action


class TestFeedbackParserSingleton:
    """Tests for singleton."""
    
    def test_singleton(self):
        """Test singleton returns same instance."""
        import src.flywheel.feedback_parser as module
        module._parser = None
        
        p1 = get_feedback_parser()
        p2 = get_feedback_parser()
        
        assert p1 is p2