#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Test cases for get_code_positions MCP tool

Tests the code position analysis tool that provides precise location
information for code elements like classes, methods, and fields.
"""

import asyncio
import json
import tempfile
from pathlib import Path
from typing import Any, Dict
# Mock functionality now provided by pytest-mock

import pytest
import pytest_asyncio

from tree_sitter_analyzer.mcp.tools.get_positions_tool import GetPositionsTool


class TestGetPositionsToolSchema:
    """Test get_code_positions tool schema and validation"""

    def setup_method(self) -> None:
        """Set up test fixtures"""
        self.tool = GetPositionsTool()

    def test_tool_schema_structure(self) -> None:
        """Test that tool schema has required structure"""
        schema = self.tool.get_tool_schema()
        
        # Test schema structure
        assert "type" in schema
        assert "properties" in schema
        assert "required" in schema
        
        # Test schema type
        assert schema["type"] == "object"
        
        # Test required fields
        assert "file_path" in schema["required"]
        
        # Test properties
        properties = schema["properties"]
        assert "file_path" in properties
        assert "language" in properties
        assert "element_types" in properties
        assert "include_details" in properties
        assert "format" in properties

    def test_input_parameters_validation(self) -> None:
        """Test input parameter validation"""
        # Valid arguments
        valid_args = {
            "file_path": "/path/to/file.java",
            "language": "java",
            "element_types": ["classes", "methods"],
            "include_details": True,
            "format": "json"
        }
        
        # Should not raise exception
        result = self.tool.validate_arguments(valid_args)
        assert result is True

    def test_required_parameters(self) -> None:
        """Test required parameter validation"""
        # Missing file_path
        invalid_args = {
            "element_types": ["classes"]
        }
        
        with pytest.raises(ValueError) as exc_info:
            self.tool.validate_arguments(invalid_args)
        assert "file_path" in str(exc_info.value)

    def test_element_types_validation(self) -> None:
        """Test element_types parameter validation"""
        # Valid element types
        valid_args = {
            "file_path": "/path/to/file.java",
            "element_types": ["classes", "methods", "fields", "imports"]
        }
        
        result = self.tool.validate_arguments(valid_args)
        assert result is True
        
        # Invalid element type
        invalid_args = {
            "file_path": "/path/to/file.java",
            "element_types": ["invalid_type"]
        }
        
        with pytest.raises(ValueError):
            self.tool.validate_arguments(invalid_args)


class TestGetPositionsToolFunctionality:
    """Test get_code_positions tool core functionality"""

    def setup_method(self) -> None:
        """Set up test fixtures"""
        self.tool = GetPositionsTool()
        self.sample_java_code = '''package com.example;

import java.util.List;
import java.util.ArrayList;

/**
 * Sample class for testing position detection
 */
public class SampleClass {
    private String name;
    private int value;
    
    /**
     * Constructor
     */
    public SampleClass(String name, int value) {
        this.name = name;
        this.value = value;
    }
    
    /**
     * Get name method
     */
    public String getName() {
        return name;
    }
    
    /**
     * Calculate something
     */
    public int calculate(int input) {
        if (input > 0) {
            return value * input;
        } else {
            return 0;
        }
    }
}
'''

    def test_get_class_positions_placeholder(self) -> None:
        """Test getting class position information - placeholder"""
        # TODO: Implement proper async testing when tool is fully implemented
        assert True, "Class positions test placeholder"

    def test_get_method_positions_placeholder(self) -> None:
        """Test getting method position information - placeholder"""
        # TODO: Implement proper async testing when tool is fully implemented
        assert True, "Method positions test placeholder"

    def test_get_multiple_element_types_placeholder(self) -> None:
        """Test getting multiple element types - placeholder"""
        # TODO: Implement proper async testing when tool is fully implemented
        assert True, "Multiple element types test placeholder"

    def test_text_format_output_placeholder(self) -> None:
        """Test text format output - placeholder"""
        # TODO: Implement proper async testing when tool is fully implemented
        assert True, "Text format output test placeholder"

    def test_language_auto_detection_placeholder(self) -> None:
        """Test automatic language detection - placeholder"""
        # TODO: Implement proper async testing when tool is fully implemented
        assert True, "Language auto detection test placeholder"


class TestGetPositionsToolErrorHandling:
    """Test error handling in get_code_positions tool"""

    def setup_method(self) -> None:
        """Set up test fixtures"""
        self.tool = GetPositionsTool()

    def test_nonexistent_file_placeholder(self) -> None:
        """Test error handling for nonexistent file - placeholder"""
        # TODO: Implement proper async testing when tool is fully implemented
        assert True, "Nonexistent file test placeholder"

    def test_unsupported_language_placeholder(self) -> None:
        """Test handling of unsupported language - placeholder"""
        # TODO: Implement proper async testing when tool is fully implemented
        assert True, "Unsupported language test placeholder"

    def test_invalid_element_types(self) -> None:
        """Test validation of invalid element types"""
        invalid_args = {
            "file_path": "/path/to/file.java",
            "element_types": ["invalid_type"]
        }
        
        with pytest.raises(ValueError):
            self.tool.validate_arguments(invalid_args)

    def test_empty_element_types(self) -> None:
        """Test validation of empty element types"""
        invalid_args = {
            "file_path": "/path/to/file.java",
            "element_types": []
        }
        
        with pytest.raises(ValueError):
            self.tool.validate_arguments(invalid_args)


class TestGetPositionsToolIntegration:
    """Test integration with existing analyzer components"""

    def setup_method(self) -> None:
        """Set up test fixtures"""
        self.tool = GetPositionsTool()

    def test_integration_with_advanced_analyzer(self) -> None:
        """Test integration with AdvancedAnalyzer"""
        # This should use the existing AdvancedAnalyzer for position extraction
        from tree_sitter_analyzer.core.analysis_engine import get_analysis_engine
        
        # Verify analysis engine exists and is callable
        analysis_engine = get_analysis_engine()
        assert hasattr(analysis_engine, 'analyze')
        
        # Test tool uses the analyzer
        assert hasattr(self.tool, '_get_element_positions')

    def test_integration_with_language_detector(self) -> None:
        """Test integration with language detection"""
        from tree_sitter_analyzer.language_detector import detect_language_from_file
        
        # Verify function exists and is callable
        assert callable(detect_language_from_file)


class TestGetPositionsToolPerformance:
    """Test performance characteristics of get_code_positions tool"""

    def setup_method(self) -> None:
        """Set up test fixtures"""
        self.tool = GetPositionsTool()

    def test_large_file_performance_placeholder(self) -> None:
        """Test performance with larger files - placeholder"""
        # TODO: Implement proper async testing when tool is fully implemented
        assert True, "Large file performance test placeholder"


if __name__ == "__main__":
    pytest.main([__file__])