"""
APE Compilation Pipeline (v1.0.0 Scaffold)

Orchestrates parsing, optimization, and bytecode generation.

Author: David Van Aelst
Status: Scaffold - implementation pending
"""

from typing import Optional, List, Any
from dataclasses import dataclass


@dataclass
class CompilationResult:
    """
    Result of compilation.
    
    Contains bytecode and compilation metadata.
    """
    bytecode_program: Any  # BytecodeProgram
    optimization_log: List[str]
    warnings: List[str]
    source_map: Optional[dict] = None


class CompilationPipeline:
    """
    Complete compilation pipeline from source to bytecode.
    
    Pipeline stages:
        1. Parse - Source to AST
        2. Validate - Type checking and semantic analysis
        3. Optimize - AST optimization passes
        4. Generate - AST to bytecode
    
    Example:
        pipeline = CompilationPipeline()
        result = pipeline.compile(source_code)
        vm.execute(result.bytecode_program)
    
    TODO:
        - Implement pipeline orchestration
        - Implement each compilation stage
        - Implement error reporting
        - Implement source mapping
    
    Author: David Van Aelst
    Status: v1.0.0 scaffold - implementation pending
    """
    
    def __init__(self, optimize: bool = True, optimization_level: int = 2):
        """
        Initialize compilation pipeline.
        
        Args:
            optimize: Whether to run optimization passes
            optimization_level: Level of optimization (0-3)
        """
        self._optimize = optimize
        self._optimization_level = optimization_level
    
    def compile(self, source: str) -> CompilationResult:
        """
        Compile source code to bytecode.
        
        Args:
            source: APE source code
        
        Returns:
            CompilationResult with bytecode and metadata
        
        TODO: Implement compilation pipeline
        """
        raise NotImplementedError("Compilation pipeline not yet implemented")
    
    def compile_ast(self, ast: Any) -> CompilationResult:
        """
        Compile already-parsed AST to bytecode.
        
        Args:
            ast: Abstract syntax tree
        
        Returns:
            CompilationResult with bytecode
        
        TODO: Implement AST compilation
        """
        raise NotImplementedError("AST compilation not yet implemented")


__all__ = ['CompilationPipeline', 'CompilationResult']
