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"""
Troviku-1.1 Python Client Library

A comprehensive client for interacting with the Troviku-1.1 API.
Supports code generation, code completion, and various programming tasks.
"""

import json
import requests
from typing import Optional, List, Dict, Any, Union
from dataclasses import dataclass, asdict
from enum import Enum


class Language(Enum):
    """Supported programming languages."""
    PYTHON = "python"
    JAVASCRIPT = "javascript"
    TYPESCRIPT = "typescript"
    JAVA = "java"
    CPP = "cpp"
    RUST = "rust"
    GO = "go"
    RUBY = "ruby"
    PHP = "php"
    SWIFT = "swift"
    KOTLIN = "kotlin"
    CSHARP = "csharp"


class TaskType(Enum):
    """Supported task types."""
    GENERATE = "generate"
    COMPLETE = "complete"
    EXPLAIN = "explain"
    REVIEW = "review"
    DEBUG = "debug"
    TRANSLATE = "translate"
    DOCUMENT = "document"
    TEST = "test"


@dataclass
class GenerationConfig:
    """Configuration for code generation."""
    temperature: float = 0.7
    top_p: float = 0.95
    top_k: int = 50
    max_tokens: int = 2048
    stop_sequences: Optional[List[str]] = None
    frequency_penalty: float = 0.0
    presence_penalty: float = 0.0
    repetition_penalty: float = 1.1
    
    def to_dict(self) -> Dict[str, Any]:
        """Convert to dictionary, excluding None values."""
        return {k: v for k, v in asdict(self).items() if v is not None}


@dataclass
class CodeResponse:
    """Response from the Troviku API."""
    code: str
    language: str
    explanation: Optional[str] = None
    confidence: Optional[float] = None
    tokens_used: Optional[int] = None
    model_version: str = "1.1.0"
    
    @classmethod
    def from_api_response(cls, response: Dict[str, Any]) -> 'CodeResponse':
        """Create CodeResponse from API response."""
        content = response['choices'][0]['message']['content']
        usage = response.get('usage', {})
        
        return cls(
            code=content,
            language="auto-detected",
            tokens_used=usage.get('total_tokens'),
            model_version=response.get('model', '1.1.0')
        )


class TrovikuClient:
    """
    Client for interacting with the Troviku-1.1 API.
    
    Attributes:
        api_key: Your OpenTrouter API key
        base_url: Base URL for the API endpoint
        model: Model identifier
    """
    
    DEFAULT_BASE_URL = "https://api.opentrouter.ai/v1"
    DEFAULT_MODEL = "OpenTrouter/Troviku-1.1"
    
    def __init__(
        self, 
        api_key: str,
        base_url: str = DEFAULT_BASE_URL,
        model: str = DEFAULT_MODEL,
        timeout: int = 60
    ):
        """
        Initialize the Troviku client.
        
        Args:
            api_key: Your OpenTrouter API key
            base_url: Base URL for API requests
            model: Model identifier to use
            timeout: Request timeout in seconds
        """
        self.api_key = api_key
        self.base_url = base_url.rstrip('/')
        self.model = model
        self.timeout = timeout
        self.session = requests.Session()
        self.session.headers.update({
            "Authorization": f"Bearer {api_key}",
            "Content-Type": "application/json"
        })
    
    def generate(
        self,
        prompt: str,
        language: Optional[Union[str, Language]] = None,
        config: Optional[GenerationConfig] = None,
        system_prompt: Optional[str] = None
    ) -> CodeResponse:
        """
        Generate code based on a prompt.
        
        Args:
            prompt: Description of the code to generate
            language: Target programming language
            config: Generation configuration
            system_prompt: Optional system prompt for context
            
        Returns:
            CodeResponse containing generated code
            
        Raises:
            requests.exceptions.RequestException: On API errors
        """
        if config is None:
            config = GenerationConfig()
        
        if isinstance(language, Language):
            language = language.value
        
        messages = []
        
        if system_prompt:
            messages.append({"role": "system", "content": system_prompt})
        elif language:
            messages.append({
                "role": "system", 
                "content": f"You are a code generation assistant. Generate {language} code."
            })
        
        messages.append({"role": "user", "content": prompt})
        
        payload = {
            "model": self.model,
            "messages": messages,
            **config.to_dict()
        }
        
        response = self._make_request("/chat/completions", payload)
        return CodeResponse.from_api_response(response)
    
    def complete(
        self,
        code: str,
        language: Optional[Union[str, Language]] = None,
        config: Optional[GenerationConfig] = None
    ) -> CodeResponse:
        """
        Complete partial code.
        
        Args:
            code: Partial code to complete
            language: Programming language of the code
            config: Generation configuration
            
        Returns:
            CodeResponse with completed code
        """
        if isinstance(language, Language):
            language = language.value
        
        prompt = f"Complete the following {language or ''} code:\n\n```\n{code}\n```"
        return self.generate(prompt, language, config)
    
    def explain(
        self,
        code: str,
        language: Optional[Union[str, Language]] = None,
        detail_level: str = "medium"
    ) -> str:
        """
        Generate an explanation for given code.
        
        Args:
            code: Code to explain
            language: Programming language
            detail_level: Level of detail (low, medium, high)
            
        Returns:
            Explanation text
        """
        if isinstance(language, Language):
            language = language.value
        
        prompt = f"""Explain the following {language or ''} code in {detail_level} detail:

```
{code}
```"""
        
        config = GenerationConfig(temperature=0.3)
        response = self.generate(prompt, language, config)
        return response.code
    
    def review(
        self,
        code: str,
        language: Optional[Union[str, Language]] = None,
        focus_areas: Optional[List[str]] = None
    ) -> str:
        """
        Review code for quality, bugs, and improvements.
        
        Args:
            code: Code to review
            language: Programming language
            focus_areas: Specific areas to focus on (e.g., security, performance)
            
        Returns:
            Code review feedback
        """
        if isinstance(language, Language):
            language = language.value
        
        focus = f" Focus on: {', '.join(focus_areas)}." if focus_areas else ""
        
        prompt = f"""Review the following {language or ''} code for quality, potential bugs, 
and improvements.{focus}

```
{code}
```"""
        
        config = GenerationConfig(temperature=0.5, max_tokens=3000)
        response = self.generate(prompt, language, config)
        return response.code
    
    def debug(
        self,
        code: str,
        error_message: str,
        language: Optional[Union[str, Language]] = None
    ) -> CodeResponse:
        """
        Debug code with error message.
        
        Args:
            code: Code with the error
            error_message: Error message or description
            language: Programming language
            
        Returns:
            CodeResponse with fixed code
        """
        if isinstance(language, Language):
            language = language.value
        
        prompt = f"""Debug the following {language or ''} code that produces this error:
Error: {error_message}

Code:
```
{code}
```

Provide the corrected code."""
        
        config = GenerationConfig(temperature=0.3)
        return self.generate(prompt, language, config)
    
    def translate(
        self,
        code: str,
        source_language: Union[str, Language],
        target_language: Union[str, Language],
        config: Optional[GenerationConfig] = None
    ) -> CodeResponse:
        """
        Translate code from one language to another.
        
        Args:
            code: Source code
            source_language: Source programming language
            target_language: Target programming language
            config: Generation configuration
            
        Returns:
            CodeResponse with translated code
        """
        if isinstance(source_language, Language):
            source_language = source_language.value
        if isinstance(target_language, Language):
            target_language = target_language.value
        
        prompt = f"""Translate the following {source_language} code to {target_language}:

```
{code}
```"""
        
        return self.generate(prompt, target_language, config)
    
    def generate_tests(
        self,
        code: str,
        language: Optional[Union[str, Language]] = None,
        test_framework: Optional[str] = None
    ) -> CodeResponse:
        """
        Generate unit tests for given code.
        
        Args:
            code: Code to generate tests for
            language: Programming language
            test_framework: Testing framework to use (e.g., pytest, jest)
            
        Returns:
            CodeResponse with test code
        """
        if isinstance(language, Language):
            language = language.value
        
        framework_text = f" using {test_framework}" if test_framework else ""
        
        prompt = f"""Generate comprehensive unit tests{framework_text} for the following {language or ''} code:

```
{code}
```"""
        
        config = GenerationConfig(temperature=0.5, max_tokens=3000)
        return self.generate(prompt, language, config)
    
    def document(
        self,
        code: str,
        language: Optional[Union[str, Language]] = None,
        style: str = "google"
    ) -> CodeResponse:
        """
        Generate documentation for code.
        
        Args:
            code: Code to document
            language: Programming language
            style: Documentation style (google, numpy, sphinx)
            
        Returns:
            CodeResponse with documented code
        """
        if isinstance(language, Language):
            language = language.value
        
        prompt = f"""Add comprehensive {style}-style documentation to the following {language or ''} code:

```
{code}
```"""
        
        config = GenerationConfig(temperature=0.3)
        return self.generate(prompt, language, config)
    
    def _make_request(self, endpoint: str, payload: Dict[str, Any]) -> Dict[str, Any]:
        """
        Make a request to the API.
        
        Args:
            endpoint: API endpoint
            payload: Request payload
            
        Returns:
            API response as dictionary
            
        Raises:
            requests.exceptions.RequestException: On API errors
        """
        url = f"{self.base_url}{endpoint}"
        
        try:
            response = self.session.post(
                url,
                json=payload,
                timeout=self.timeout
            )
            response.raise_for_status()
            return response.json()
        except requests.exceptions.HTTPError as e:
            error_detail = e.response.text
            raise requests.exceptions.RequestException(
                f"API request failed: {e}. Details: {error_detail}"
            )
    
    def close(self):
        """Close the session."""
        self.session.close()
    
    def __enter__(self):
        """Context manager entry."""
        return self
    
    def __exit__(self, exc_type, exc_val, exc_tb):
        """Context manager exit."""
        self.close()


# Example usage
if __name__ == "__main__":
    # Initialize client
    client = TrovikuClient(api_key="your_api_key_here")
    
    # Generate code
    response = client.generate(
        prompt="Create a function to calculate factorial recursively",
        language=Language.PYTHON
    )
    print("Generated Code:")
    print(response.code)
    print(f"\nTokens used: {response.tokens_used}")
    
    # Complete code
    partial_code = """def fibonacci(n):
    if n <= 1:
        return n
    # Complete this function"""
    
    completion = client.complete(partial_code, Language.PYTHON)
    print("\nCompleted Code:")
    print(completion.code)
    
    # Explain code
    explanation = client.explain(
        code="lambda x: x**2 + 2*x + 1",
        language=Language.PYTHON
    )
    print("\nExplanation:")
    print(explanation)
    
    client.close()