bootloader/bootloader.py

"""
System Bootloader

This bootloader initializes the system components, manages the boot process,
and provides a boot menu interface. It integrates with the enhanced CPU
and manages initial resource allocation.
"""

import os
import sys
import time
import json
import asyncio
import threading
from typing import List, Dict, Optional
from dataclasses import dataclass
import queue
import duckdb
from dotenv import load_dotenv
from pathlib import Path

# Import system components
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from cpu.enhanced_cpu import CPUVRAMInterface
from virtual_gpu_driver.src.driver_api import VirtualGPUDriver
from display_server import display_server

@dataclass
class BootConfig:
    """Boot configuration settings"""
    cpu_cores: int = 50
    cpu_threads: int = 100
    vram_size_gb: int = 32
    enable_gpu: bool = True
    boot_timeout: int = 5
    safe_mode: bool = False
    os_image_dir: str = "os_img"  # Directory containing OS images
    boot_partition: str = "/dev/sda1"
    kernel_params: str = ""

class SystemBootloader:
    def __init__(self):
        self.config = BootConfig()
        self.boot_queue = queue.Queue()
        self.cpu_interface = None
        self.gpu_driver = None
        self.boot_status = "initialized"
        self.error_state = None
        self.display_server = display_server
        
        # Initialize DuckDB connection
        self._init_duckdb_storage()
        
        # Start display server in a separate thread
        self.start_display_server()
        
    def _init_duckdb_storage(self):
        """Initialize DuckDB with remote storage support"""
        # Load environment variables
        load_dotenv(Path(__file__).parent / '.env')
        
        # Get DuckDB configuration
        self.remote_url = os.getenv('DUCKDB_REMOTE_URL')
        self.local_path = os.getenv('DUCKDB_LOCAL_PATH', './bootloader_db.duck')
        
        # Initialize DuckDB connection
        self.db = duckdb.connect(self.local_path)
        
        # Configure S3 settings if remote storage is enabled
        if self.remote_url and self.remote_url.startswith('s3://'):
            self.db.execute("""
                INSTALL httpfs;
                LOAD httpfs;
                SET s3_region='{}';
                SET s3_access_key_id='{}';
                SET s3_secret_access_key='{}';
            """.format(
                os.getenv('DUCKDB_S3_REGION'),
                os.getenv('DUCKDB_S3_ACCESS_KEY'),
                os.getenv('DUCKDB_S3_SECRET_KEY')
            ))
            
        # Initialize boot storage tables
        self._init_storage_tables()
        
    def start_display_server(self):
        """Start the display server in a separate thread"""
        display_thread = threading.Thread(target=lambda: asyncio.run(self.display_server.start_server()))
        display_thread.daemon = True
        display_thread.start()
        
    async def log_message(self, message: str):
        """Log a message to the console and display server"""
        print(message)
        await self.display_server.console_log(message)
        
    def get_available_os_images(self) -> List[Dict[str, str]]:
        """Get list of available OS images from the os_img directory"""
        os_image_dir = Path(__file__).parent / self.config.os_image_dir
        if not os_image_dir.exists():
            os_image_dir.mkdir(parents=True)
            
        images = []
        for img_file in os_image_dir.glob('*.img'):
            size = img_file.stat().st_size
            images.append({
                'name': img_file.name,
                'path': str(img_file),
                'size': f"{size / (1024*1024):.2f} MB"
            })
        return images
        
    async def load_os_image(self, image_path: str) -> bool:
        """Load an OS image from the local filesystem"""
        try:
            img_path = Path(image_path)
            if not img_path.exists():
                await self.log_message(f"Error: OS image not found: {image_path}")
                return False
                
            # Update display with OS image info
            size = img_path.stat().st_size
            await self.display_server.update_os_image(
                name=img_path.name,
                size=f"{size / (1024*1024):.2f} MB",
                status="loading"
            )
            
            # Simulate loading progress
            for progress in range(0, 101, 10):
                await self.display_server.update_boot_progress(progress)
                await asyncio.sleep(0.2)  # Simulate loading time
                
            await self.display_server.update_os_image(
                name=img_path.name,
                size=f"{size / (1024*1024):.2f} MB",
                status="loaded"
            )
            
            return True
            
        except Exception as e:
            await self.log_message(f"Error loading OS image: {str(e)}")
            return False
            
    async def initialize_system(self):
        """Initialize system components"""
        try:
            # Initialize CPU interface
            self.cpu_interface = CPUVRAMInterface(
                cores=self.config.cpu_cores,
                threads=self.config.cpu_threads,
                vram_size=self.config.vram_size_gb
            )
            
            # Update display with CPU status
            await self.display_server.update_cpu_status(
                cores=self.config.cpu_cores,
                usage=0,
                temp=45  # Initial temperature
            )
            
            # Initialize GPU driver if enabled
            if self.config.enable_gpu:
                self.gpu_driver = VirtualGPUDriver()
                
            # Initialize memory status
            await self.display_server.update_memory_status(
                total=f"{self.config.vram_size_gb} GB",
                used="0 GB",
                available=f"{self.config.vram_size_gb} GB"
            )
            
            return True
            
        except Exception as e:
            await self.log_message(f"Error initializing system: {str(e)}")
            return False
            
    async def boot_system(self, os_image: str = None):
        """Boot the system with the specified OS image"""
        try:
            # Initialize system components
            if not await self.initialize_system():
                return False
                
            # If no OS image specified, use the first available one
            if os_image is None:
                available_images = self.get_available_os_images()
                if not available_images:
                    await self.log_message("Error: No OS images found in os_img directory")
                    return False
                os_image = available_images[0]['path']
                
            # Load the OS image
            if not await self.load_os_image(os_image):
                return False
                
            await self.log_message("System boot completed successfully")
            return True
            
        except Exception as e:
            await self.log_message(f"Error during system boot: {str(e)}")
            return False
            
    def _init_duckdb_storage(self):
        """Initialize DuckDB with local storage"""
        self.local_path = './bootloader_db.duck'
        self.db = duckdb.connect(self.local_path)
        self._init_storage_tables()
        
    def _init_storage_tables(self):
        """Initialize storage tables for boot configuration and state"""
        # Create boot configuration table
        self.db.execute("""
            CREATE TABLE IF NOT EXISTS boot_config (
                id INTEGER PRIMARY KEY,
                cpu_cores INTEGER,
                cpu_threads INTEGER,
                vram_size_gb INTEGER,
                enable_gpu BOOLEAN,
                boot_timeout INTEGER,
                safe_mode BOOLEAN,
                os_image_dir VARCHAR,
                boot_partition VARCHAR,
                kernel_params VARCHAR,
                last_modified TIMESTAMP DEFAULT CURRENT_TIMESTAMP
            )
        """)
        
        # Create boot history table
        self.db.execute("""
            CREATE TABLE IF NOT EXISTS boot_history (
                id INTEGER PRIMARY KEY,
                boot_timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
                boot_status VARCHAR,
                error_state VARCHAR,
                diagnostic_results JSON
            )
        """)
        
    def clear_screen(self):
        """Clear the terminal screen"""
        os.system('cls' if os.name == 'nt' else 'clear')
        
    def display_boot_menu(self):
        """Display the boot menu interface"""
        self.clear_screen()
        print("=== System Boot Menu ===")
        print("1. Normal Boot")
        print("2. Safe Mode")
        print("3. Configure Boot Options")
        print("4. Hardware Diagnostics")
        print("5. Exit")
        print("\nAutomatic boot in {} seconds...".format(self.config.boot_timeout))
        
    def initialize_hardware(self):
        """Initialize core hardware components"""
        try:
            # Initialize CPU-VRAM interface
            self.cpu_interface = CPUVRAMInterface(vram_size_gb=self.config.vram_size_gb)
            
            # Initialize GPU driver if enabled
            if self.config.enable_gpu:
                self.gpu_driver = VirtualGPUDriver()
                
            return True
        except Exception as e:
            self.error_state = str(e)
            return False
            
    def run_diagnostics(self):
        """Run system diagnostics"""
        tests = [
            ("CPU Interface", self._test_cpu_interface),
            ("Memory Allocation", self._test_memory_allocation),
            ("GPU Driver", self._test_gpu_driver),
        ]
        
        results = {}
        for test_name, test_func in tests:
            print(f"Running {test_name}...", end=" ")
            try:
                result = test_func()
                results[test_name] = "PASS" if result else "FAIL"
                print(results[test_name])
            except Exception as e:
                results[test_name] = f"ERROR: {str(e)}"
                print(results[test_name])
                
        return results
        
    def _test_cpu_interface(self):
        """Test CPU interface functionality"""
        if not self.cpu_interface:
            return False
        try:
            # Test memory allocation
            block_id = self.cpu_interface.allocate_memory(1024)
            self.cpu_interface.free_memory(block_id)
            return True
        except:
            return False
            
    def _test_memory_allocation(self):
        """Test memory allocation and mapping"""
        if not self.cpu_interface:
            return False
        try:
            block_id = self.cpu_interface.allocate_memory(1024)
            result = self.cpu_interface.map_memory(block_id, 0x1000)
            self.cpu_interface.free_memory(block_id)
            return result
        except:
            return False
            
    def _test_gpu_driver(self):
        """Test GPU driver initialization"""
        return bool(self.gpu_driver) if self.config.enable_gpu else True
        
    def load_os_image(self) -> bool:
        """Load operating system image into memory"""
        try:
            print(f"\nLoading OS image from {self.config.os_image_path}")
            
            # Verify OS image exists
            if not os.path.exists(self.config.os_image_path):
                raise Exception("OS image not found")
                
            # Allocate memory for OS image
            image_size = os.path.getsize(self.config.os_image_path)
            os_block_id = self.cpu_interface.allocate_memory(image_size)
            
            # Load image into memory (simulated for this example)
            print("Loading image into memory...")
            with open(self.config.os_image_path, 'rb') as f:
                # In a real bootloader, this would use direct memory access
                image_data = f.read()
                
            # Map OS image to memory
            self.cpu_interface.map_memory(os_block_id, 0x100000)  # Map to 1MB address
            
            print("OS image loaded successfully")
            return True
            
        except Exception as e:
            print(f"Failed to load OS image: {str(e)}")
            return False

    def setup_boot_environment(self):
        """Prepare the boot environment"""
        print("\nSetting up boot environment...")
        
        # Mount boot partition (simulated)
        print(f"Mounting boot partition: {self.config.boot_partition}")
        
        # Parse kernel parameters
        if self.config.kernel_params:
            print(f"Kernel parameters: {self.config.kernel_params}")
            
        return True

    def boot_system(self):
        """Main boot sequence"""
        try:
            # Display boot menu
            self.display_boot_menu()
            
            # Initialize hardware
            if not self.initialize_hardware():
                raise Exception(f"Hardware initialization failed: {self.error_state}")
                
            # Run basic diagnostics
            diag_results = self.run_diagnostics()
            if any(result.startswith("ERROR") for result in diag_results.values()):
                raise Exception("System diagnostics failed")
            
            # Setup boot environment
            if not self.setup_boot_environment():
                raise Exception("Failed to setup boot environment")
                
            # Load OS image
            if not self.load_os_image():
                raise Exception("Failed to load OS image")
                
            # Start system components
            self.boot_status = "booting"
            print("\nTransferring control to OS...")
            time.sleep(1)  # Simulate boot time
            
            self.boot_status = "ready"
            print("System boot completed successfully!")
            return True
            
        except Exception as e:
            self.boot_status = "failed"
            print(f"\nBoot Error: {str(e)}")
            return False
            
    def save_boot_config(self):
        """Save current boot configuration to storage"""
        self.db.execute("""
            INSERT INTO boot_config (
                cpu_cores, cpu_threads, vram_size_gb, enable_gpu,
                boot_timeout, safe_mode, os_image_path, boot_partition,
                kernel_params
            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
        """, (
            self.config.cpu_cores,
            self.config.cpu_threads,
            self.config.vram_size_gb,
            self.config.enable_gpu,
            self.config.boot_timeout,
            self.config.safe_mode,
            self.config.os_image_path,
            self.config.boot_partition,
            self.config.kernel_params
        ))
        
        # Sync with remote storage if configured
        if self.remote_url:
            self.db.execute(f"EXPORT DATABASE '{self.remote_url}' (FORMAT PARQUET)")

    def load_boot_config(self):
        """Load last boot configuration from storage"""
        result = self.db.execute("""
            SELECT * FROM boot_config 
            ORDER BY last_modified DESC 
            LIMIT 1
        """).fetchone()
        
        if result:
            self.config.cpu_cores = result[1]
            self.config.cpu_threads = result[2]
            self.config.vram_size_gb = result[3]
            self.config.enable_gpu = result[4]
            self.config.boot_timeout = result[5]
            self.config.safe_mode = result[6]
            self.config.os_image_path = result[7]
            self.config.boot_partition = result[8]
            self.config.kernel_params = result[9]

    def log_boot_history(self, diagnostic_results: Dict):
        """Log boot attempt to history"""
        self.db.execute("""
            INSERT INTO boot_history (
                boot_status, error_state, diagnostic_results
            ) VALUES (?, ?, ?)
        """, (
            self.boot_status,
            self.error_state,
            json.dumps(diagnostic_results)
        ))
        
        # Sync with remote storage if configured
        if self.remote_url:
            self.db.execute(f"EXPORT DATABASE '{self.remote_url}' (FORMAT PARQUET)")

    def shutdown(self):
        """Clean shutdown of system components"""
        if self.gpu_driver:
            # Cleanup GPU resources
            self.gpu_driver = None
            
        if self.cpu_interface:
            # Cleanup CPU-VRAM resources
            self.cpu_interface = None
        
        # Save final state and close database connection
        try:
            self.save_boot_config()
            self.db.close()
        except:
            pass
            
        print("System shutdown complete.")

if __name__ == "__main__":
    bootloader = SystemBootloader()
    try:
        if bootloader.boot_system():
            # Keep system running until interrupted
            while bootloader.boot_status == "ready":
                time.sleep(1)
    except KeyboardInterrupt:
        print("\nInitiating shutdown...")
    finally:
        bootloader.shutdown()