"""
BR-95 Desktop Operating System API Router

Provides real-time data for the BR-95 desktop interface:
- Lucidia AI orchestration stats
- Agent statistics
- RoadChain blockchain stats
- Wallet balances
- Miner performance
- Raspberry Pi / device stats
- GitHub integration stats
- RoadMail, RoadCraft, Road City data
- Terminal command execution
- WebSocket live updates
"""

from fastapi import APIRouter, WebSocket, WebSocketDisconnect, Depends, HTTPException
from pydantic import BaseModel, Field
from typing import Dict, List, Optional, Any
from datetime import datetime, timedelta
import asyncio
import random
import psutil
import json

router = APIRouter(prefix="/api/br95", tags=["BR-95 Desktop"])


# ============================================================================
# Pydantic Models
# ============================================================================

class LucidiaStats(BaseModel):
    """Lucidia AI orchestration engine stats."""
    status: str = "operational"
    active_agents: int
    total_agents: int
    memory_journals: int
    event_bus_rate: int  # events per second
    system_health: float  # percentage
    uptime_hours: int
    cpu_usage: float
    memory_usage: float
    last_updated: datetime


class AgentStatsModel(BaseModel):
    """AI Agent statistics."""
    total_agents: int
    active_agents: int
    idle_agents: int
    categories: int
    tasks_completed_today: int
    tasks_queued: int
    average_response_time_ms: float
    success_rate: float
    top_agents: List[Dict[str, Any]]


class RoadChainStats(BaseModel):
    """RoadChain blockchain statistics."""
    current_block: int
    active_nodes: int
    network_hashrate: str
    difficulty: int
    pending_transactions: int
    confirmed_transactions: int
    blocks_today: int
    average_block_time: float  # seconds
    last_block_hash: str
    sync_status: str


class WalletStats(BaseModel):
    """RoadCoin wallet statistics."""
    balance_rc: float
    balance_usd: float
    pending_balance: float
    total_received: float
    total_sent: float
    transaction_count: int
    recent_transactions: List[Dict[str, Any]]


class MinerStats(BaseModel):
    """Mining statistics."""
    is_mining: bool
    hash_rate: str  # e.g., "1.2 GH/s"
    shares_accepted: int
    shares_rejected: int
    blocks_mined: int
    pool_name: str
    worker_name: str
    efficiency: float  # MH/s per watt
    temperature: float  # celsius
    power_usage: float  # watts
    uptime_hours: int


class RaspberryPiStats(BaseModel):
    """Raspberry Pi and device statistics."""
    total_devices: int
    online_devices: int
    offline_devices: int
    devices: List[Dict[str, Any]]


class GitHubStats(BaseModel):
    """GitHub integration statistics."""
    repositories: int
    pull_requests_open: int
    issues_open: int
    commits_today: int
    contributors: int
    stars: int


class RoadMailStats(BaseModel):
    """RoadMail statistics."""
    inbox_count: int
    unread_count: int
    sent_count: int
    drafts_count: int
    storage_used_mb: float
    storage_total_mb: float


class RoadCraftStats(BaseModel):
    """RoadCraft game statistics."""
    worlds_created: int
    active_players: int
    blocks_placed: int
    items_crafted: int
    server_status: str


class RoadCityStats(BaseModel):
    """Road City metaverse statistics."""
    total_users: int
    active_now: int
    buildings: int
    transactions_24h: int
    marketplace_items: int


class TerminalCommand(BaseModel):
    """Terminal command input."""
    command: str


class TerminalResponse(BaseModel):
    """Terminal command output."""
    command: str
    output: str
    timestamp: datetime
    exit_code: int


# ============================================================================
# Data Simulator
# ============================================================================

class DataSimulator:
    """Simulates real-time OS data for the BR-95 desktop."""

    def __init__(self):
        self.start_time = datetime.utcnow()
        self.block_height = 1_247_891
        self.wallet_balance = 1500.75
        self.shares_accepted = 8423
        self.blocks_mined = 12

    def get_lucidia_stats(self) -> LucidiaStats:
        """Get Lucidia orchestration stats."""
        uptime = (datetime.utcnow() - self.start_time).total_seconds() / 3600

        return LucidiaStats(
            status="operational",
            active_agents=random.randint(980, 1000),
            total_agents=1000,
            memory_journals=1000,
            event_bus_rate=random.randint(800, 900),
            system_health=random.uniform(99.8, 99.99),
            uptime_hours=int(uptime),
            cpu_usage=psutil.cpu_percent(),
            memory_usage=psutil.virtual_memory().percent,
            last_updated=datetime.utcnow()
        )

    def get_agent_stats(self) -> AgentStatsModel:
        """Get AI agent statistics."""
        return AgentStatsModel(
            total_agents=1000,
            active_agents=random.randint(850, 950),
            idle_agents=random.randint(50, 150),
            categories=10,
            tasks_completed_today=random.randint(5000, 8000),
            tasks_queued=random.randint(10, 100),
            average_response_time_ms=random.uniform(150, 350),
            success_rate=random.uniform(98.5, 99.9),
            top_agents=[
                {"name": "Codex", "tasks": random.randint(500, 1000), "success_rate": 99.5},
                {"name": "Cece", "tasks": random.randint(400, 900), "success_rate": 99.8},
                {"name": "Atlas", "tasks": random.randint(300, 800), "success_rate": 99.2},
            ]
        )

    def get_roadchain_stats(self) -> RoadChainStats:
        """Get RoadChain blockchain stats."""
        # Simulate block growth
        self.block_height += random.randint(0, 2)

        return RoadChainStats(
            current_block=self.block_height,
            active_nodes=random.randint(2800, 2900),
            network_hashrate=f"{random.uniform(500, 600):.1f} PH/s",
            difficulty=random.randint(1_000_000, 2_000_000),
            pending_transactions=random.randint(100, 500),
            confirmed_transactions=random.randint(50000, 100000),
            blocks_today=random.randint(140, 150),
            average_block_time=random.uniform(8.5, 9.5),
            last_block_hash=f"0x{''.join(random.choices('0123456789abcdef', k=64))}",
            sync_status="synced"
        )

    def get_wallet_stats(self) -> WalletStats:
        """Get wallet statistics."""
        # Simulate small balance changes
        self.wallet_balance += random.uniform(-0.5, 1.0)

        return WalletStats(
            balance_rc=round(self.wallet_balance, 2),
            balance_usd=round(self.wallet_balance * 3.45, 2),  # Simulated exchange rate
            pending_balance=round(random.uniform(0, 5), 2),
            total_received=round(self.wallet_balance * 1.5, 2),
            total_sent=round(self.wallet_balance * 0.3, 2),
            transaction_count=random.randint(50, 100),
            recent_transactions=[
                {
                    "type": "received",
                    "amount": 2.5,
                    "from": "0x1234...5678",
                    "timestamp": (datetime.utcnow() - timedelta(minutes=10)).isoformat()
                },
                {
                    "type": "sent",
                    "amount": -1.2,
                    "to": "0xabcd...efgh",
                    "timestamp": (datetime.utcnow() - timedelta(hours=2)).isoformat()
                }
            ]
        )

    def get_miner_stats(self) -> MinerStats:
        """Get miner statistics."""
        # Simulate mining progress
        self.shares_accepted += random.randint(0, 5)
        if random.random() < 0.01:  # 1% chance to mine a block
            self.blocks_mined += 1

        return MinerStats(
            is_mining=True,
            hash_rate=f"{random.uniform(1.0, 1.5):.2f} GH/s",
            shares_accepted=self.shares_accepted,
            shares_rejected=random.randint(10, 50),
            blocks_mined=self.blocks_mined,
            pool_name="BR-Global-01",
            worker_name="RoadMiner-1",
            efficiency=random.uniform(9.5, 10.5),
            temperature=random.uniform(62, 68),
            power_usage=random.uniform(115, 125),
            uptime_hours=int((datetime.utcnow() - self.start_time).total_seconds() / 3600)
        )

    def get_raspberry_pi_stats(self) -> RaspberryPiStats:
        """Get Raspberry Pi device statistics."""
        devices = [
            {
                "name": "Jetson Orin Nano",
                "status": "online",
                "ip": "192.168.1.10",
                "cpu": random.uniform(20, 40),
                "memory": random.uniform(50, 70),
                "uptime_hours": 72
            },
            {
                "name": "Lucidia-Pi-01",
                "status": "online",
                "ip": "192.168.1.11",
                "cpu": random.uniform(10, 30),
                "memory": random.uniform(40, 60),
                "uptime_hours": 168
            },
            {
                "name": "Lucidia-Pi-02",
                "status": "online",
                "ip": "192.168.1.12",
                "cpu": random.uniform(15, 35),
                "memory": random.uniform(45, 65),
                "uptime_hours": 120
            },
            {
                "name": "Lucidia-Pi-03",
                "status": "offline",
                "ip": "192.168.1.13",
                "cpu": 0,
                "memory": 0,
                "uptime_hours": 0
            }
        ]

        return RaspberryPiStats(
            total_devices=4,
            online_devices=3,
            offline_devices=1,
            devices=devices
        )


# Global simulator instance
simulator = DataSimulator()


# ============================================================================
# API Endpoints
# ============================================================================

@router.get("/lucidia", response_model=LucidiaStats)
async def get_lucidia_stats():
    """Get Lucidia AI orchestration engine statistics."""
    return simulator.get_lucidia_stats()


@router.get("/agents", response_model=AgentStatsModel)
async def get_agent_stats():
    """Get AI agent statistics."""
    return simulator.get_agent_stats()


@router.get("/roadchain", response_model=RoadChainStats)
async def get_roadchain_stats():
    """Get RoadChain blockchain statistics."""
    return simulator.get_roadchain_stats()


@router.get("/wallet", response_model=WalletStats)
async def get_wallet_stats():
    """Get wallet statistics."""
    return simulator.get_wallet_stats()


@router.get("/miner", response_model=MinerStats)
async def get_miner_stats():
    """Get miner statistics."""
    return simulator.get_miner_stats()


@router.get("/raspberry-pi", response_model=RaspberryPiStats)
async def get_raspberry_pi_stats():
    """Get Raspberry Pi device statistics."""
    return simulator.get_raspberry_pi_stats()


@router.get("/github", response_model=GitHubStats)
async def get_github_stats():
    """Get GitHub integration statistics."""
    return GitHubStats(
        repositories=25,
        pull_requests_open=random.randint(5, 15),
        issues_open=random.randint(10, 30),
        commits_today=random.randint(10, 50),
        contributors=12,
        stars=random.randint(200, 500)
    )


@router.get("/roadmail", response_model=RoadMailStats)
async def get_roadmail_stats():
    """Get RoadMail statistics."""
    return RoadMailStats(
        inbox_count=random.randint(50, 200),
        unread_count=random.randint(5, 25),
        sent_count=random.randint(100, 500),
        drafts_count=random.randint(2, 10),
        storage_used_mb=random.uniform(500, 1500),
        storage_total_mb=5000
    )


@router.get("/roadcraft", response_model=RoadCraftStats)
async def get_roadcraft_stats():
    """Get RoadCraft game statistics."""
    return RoadCraftStats(
        worlds_created=random.randint(10, 50),
        active_players=random.randint(5, 20),
        blocks_placed=random.randint(10000, 100000),
        items_crafted=random.randint(1000, 10000),
        server_status="online"
    )


@router.get("/road-city", response_model=RoadCityStats)
async def get_road_city_stats():
    """Get Road City metaverse statistics."""
    return RoadCityStats(
        total_users=random.randint(1000, 5000),
        active_now=random.randint(50, 200),
        buildings=random.randint(500, 2000),
        transactions_24h=random.randint(100, 1000),
        marketplace_items=random.randint(500, 5000)
    )


@router.post("/terminal", response_model=TerminalResponse)
async def execute_terminal_command(command: TerminalCommand):
    """
    Execute a terminal command.

    Note: This is a simulated terminal for security reasons.
    Real commands are not executed on the server.
    """
    cmd = command.command.strip().lower()

    # Simulate responses for common commands
    if cmd == "lucidia status":
        output = """✓ Lucidia Core: OPERATIONAL
✓ Active Agents: 1000/1000
✓ Memory Journals: 1000 active streams
✓ Event Bus: 847 events/sec
✓ System Health: 99.95%"""

    elif cmd == "roadchain sync":
        output = """Syncing with RoadChain network...
✓ Block height: 1,247,891
✓ Peers: 2847 connected
✓ Sync status: synced"""

    elif cmd == "help":
        output = """Available commands:
  lucidia status    - Show Lucidia core status
  roadchain sync    - Sync with RoadChain network
  wallet balance    - Show wallet balance
  agents list       - List active agents
  help              - Show this help message
  clear             - Clear terminal"""

    elif cmd == "wallet balance":
        stats = simulator.get_wallet_stats()
        output = f"""Wallet Balance:
  RC Balance: {stats.balance_rc} RC
  USD Value: ${stats.balance_usd}
  Pending: {stats.pending_balance} RC"""

    elif cmd == "agents list":
        output = """Active Agents:
  [1] Codex - Code generation and analysis
  [2] Cece - System architecture and engineering
  [3] Atlas - Infrastructure and deployment
  [4] Sentinel - Security and monitoring
  [5] Archivist - Data management and retrieval

  Total: 1000 agents active"""

    else:
        output = f"Command not found: {command.command}\nType 'help' for available commands."

    return TerminalResponse(
        command=command.command,
        output=output,
        timestamp=datetime.utcnow(),
        exit_code=0
    )


# ============================================================================
# WebSocket Connection Manager
# ============================================================================

class ConnectionManager:
    """Manages WebSocket connections for live updates."""

    def __init__(self):
        self.active_connections: List[WebSocket] = []

    async def connect(self, websocket: WebSocket):
        """Accept and store a new WebSocket connection."""
        await websocket.accept()
        self.active_connections.append(websocket)

    def disconnect(self, websocket: WebSocket):
        """Remove a WebSocket connection."""
        if websocket in self.active_connections:
            self.active_connections.remove(websocket)

    async def broadcast(self, message: dict):
        """Broadcast a message to all connected clients."""
        disconnected = []
        for connection in self.active_connections:
            try:
                await connection.send_json(message)
            except Exception:
                disconnected.append(connection)

        # Clean up disconnected clients
        for conn in disconnected:
            self.disconnect(conn)


# Global connection manager
manager = ConnectionManager()


@router.websocket("/ws")
async def websocket_endpoint(websocket: WebSocket):
    """
    WebSocket endpoint for real-time BR-95 OS updates.

    Broadcasts updates for:
    - Miner statistics
    - RoadChain block updates
    - Wallet balance changes
    - Agent activity
    """
    await manager.connect(websocket)

    try:
        # Send initial connection confirmation
        await websocket.send_json({
            "type": "connected",
            "message": "BR-95 OS WebSocket connected",
            "timestamp": datetime.utcnow().isoformat()
        })

        # Start broadcasting updates
        while True:
            await asyncio.sleep(3)  # Update every 3 seconds

            # Broadcast miner update
            miner_stats = simulator.get_miner_stats()
            await manager.broadcast({
                "type": "miner_update",
                "data": miner_stats.dict(),
                "timestamp": datetime.utcnow().isoformat()
            })

            await asyncio.sleep(2)

            # Broadcast roadchain update
            roadchain_stats = simulator.get_roadchain_stats()
            await manager.broadcast({
                "type": "roadchain_update",
                "data": roadchain_stats.dict(),
                "timestamp": datetime.utcnow().isoformat()
            })

            await asyncio.sleep(2)

            # Broadcast wallet update
            wallet_stats = simulator.get_wallet_stats()
            await manager.broadcast({
                "type": "wallet_update",
                "data": wallet_stats.dict(),
                "timestamp": datetime.utcnow().isoformat()
            })

    except WebSocketDisconnect:
        manager.disconnect(websocket)
    except Exception as e:
        print(f"WebSocket error: {e}")
        manager.disconnect(websocket)