"""
General operations commands for AITBC CLI (marketplace, AI, agents)
"""

import json
import time
import hashlib
from pathlib import Path
from typing import Optional

import click

from ..utils import error, success
from ..utils.wallet import decrypt_private_key
from aitbc import AITBCHTTPClient, NetworkError, KEYSTORE_DIR
from cryptography.hazmat.primitives.asymmetric import ed25519
from cryptography.hazmat.primitives import serialization

DEFAULT_RPC_URL = "http://localhost:8006"
DEFAULT_KEYSTORE_DIR = KEYSTORE_DIR


@click.group()
def operations():
    """General operations commands"""
    pass


# Marketplace operations
@operations.group()
def marketplace():
    """Marketplace operations"""
    pass


@marketplace.command()
@click.option('--format', type=click.Choice(['table', 'json']), default='table', help='Output format')
def list_listings(format: str):
    """List marketplace listings"""
    try:
        http_client = AITBCHTTPClient(base_url="http://localhost:8102", timeout=30)
        data = http_client.get("/rpc/marketplace/listings")
        listings = data.get("listings", [])
        success(f"Marketplace listings: {len(listings)}")
        if format == 'json':
            click.echo(json.dumps(listings, indent=2))
        else:
            for listing in listings:
                click.echo(f"  - {listing.get('name', 'unknown')}: {listing.get('price', 0)} AIT")
    except NetworkError as e:
        error(f"Error getting marketplace listings: {e}")
    except Exception as e:
        error(f"Error: {e}")


@marketplace.command()
@click.argument('listing_id')
@click.option('--quantity', type=int, default=1, help='Quantity to purchase')
@click.option('--wallet', help='Wallet name for payment')
def purchase(listing_id: str, quantity: int, wallet: Optional[str]):
    """Purchase from marketplace listing"""
    success(f"Purchase {quantity} of listing {listing_id}")
    # TODO: Implement actual purchase logic with wallet signing


@marketplace.command()
@click.option('--wallet-name', required=True, help='Seller wallet name')
@click.option('--item-type', required=True, help='Type of item')
@click.option('--price', type=float, required=True, help='Listing price')
@click.option('--description', help='Item description')
def create_listing(wallet_name: str, item_type: str, price: float, description: Optional[str]):
    """Create a marketplace listing"""
    try:
        # Get wallet address
        keystore_path = DEFAULT_KEYSTORE_DIR / f"{wallet_name}.json"
        if not keystore_path.exists():
            error(f"Wallet '{wallet_name}' not found")
            return None
        
        with open(keystore_path) as f:
            wallet_data = json.load(f)
        address = wallet_data['address']
        
        # Create listing via RPC
        listing_config = {
            "seller_address": address,
            "item_type": item_type,
            "price": price,
            "description": description or ""
        }
        
        try:
            http_client = AITBCHTTPClient(base_url="http://localhost:8102", timeout=30)
            result = http_client.post("/rpc/marketplace/create", json=listing_config)
            success(f"Listing created successfully")
            click.echo(f"Item: {item_type}")
            click.echo(f"Price: {price} AIT")
            click.echo(f"Listing ID: {result.get('listing_id', 'unknown')}")
            return result
        except NetworkError as e:
            error(f"Error creating listing: {e}")
            return None
        except Exception as e:
            error(f"Error: {e}")
            return None
    except Exception as e:
        error(f"Error: {e}")


# AI operations
@operations.group()
def ai():
    """AI operations"""
    pass


@ai.command()
@click.option('--wallet-name', required=True, help='Client wallet name')
@click.option('--job-type', required=True, help='Type of AI job')
@click.option('--prompt', required=True, help='AI prompt')
@click.option('--payment', type=float, required=True, help='Payment amount')
@click.option('--model', help='AI model to use')
def submit_job(wallet_name: str, job_type: str, prompt: str, payment: float, model: Optional[str]):
    """Submit an AI job"""
    try:
        # Get wallet address
        keystore_path = DEFAULT_KEYSTORE_DIR / f"{wallet_name}.json"
        if not keystore_path.exists():
            error(f"Wallet '{wallet_name}' not found")
            return None
        
        with open(keystore_path) as f:
            wallet_data = json.load(f)
        address = wallet_data['address']
        
        # Submit job via coordinator API
        job_config = {
            "client_address": address,
            "job_type": job_type,
            "prompt": prompt,
            "payment": payment,
            "model": model or "default"
        }
        
        try:
            http_client = AITBCHTTPClient(base_url="http://localhost:9001", timeout=30)
            result = http_client.post("/v1/jobs", json=job_config)
            success(f"AI job submitted successfully")
            click.echo(f"Job ID: {result.get('job_id', 'unknown')}")
            click.echo(f"Type: {job_type}")
            click.echo(f"Payment: {payment} AIT")
            return result
        except NetworkError as e:
            error(f"Error submitting AI job: {e}")
            return None
        except Exception as e:
            error(f"Error: {e}")
            return None
    except Exception as e:
        error(f"Error: {e}")


@ai.command()
@click.option('--job-id', help='Specific job ID')
@click.option('--format', type=click.Choice(['table', 'json']), default='table', help='Output format')
def status(job_id: Optional[str], format: str):
    """Get AI job status"""
    try:
        http_client = AITBCHTTPClient(base_url="http://localhost:9001", timeout=30)
        if job_id:
            result = http_client.get(f"/v1/jobs/{job_id}")
            success(f"Job status for {job_id}")
        else:
            result = http_client.get("/v1/jobs")
            success(f"All jobs status")
        
        if format == 'json':
            click.echo(json.dumps(result, indent=2))
        else:
            if job_id:
                click.echo(f"Status: {result.get('state', 'unknown')}")
                click.echo(f"Progress: {result.get('progress', '0%')}")
            else:
                for job in result.get('jobs', []):
                    click.echo(f"  - {job.get('job_id', 'unknown')}: {job.get('state', 'unknown')}")
    except NetworkError as e:
        error(f"Error getting AI job status: {e}")
    except Exception as e:
        error(f"Error: {e}")


@ai.command()
@click.option('--job-id', help='Specific job ID')
def cancel(job_id: Optional[str]):
    """Cancel an AI job"""
    if not job_id:
        error("Job ID is required")
        return
    
    try:
        http_client = AITBCHTTPClient(base_url="http://localhost:9001", timeout=30)
        result = http_client.post(f"/v1/jobs/{job_id}/cancel")
        success(f"AI job {job_id} cancelled")
    except NetworkError as e:
        error(f"Error cancelling AI job: {e}")
    except Exception as e:
        error(f"Error: {e}")


# Agent operations
@operations.group()
def agent():
    """Agent operations"""
    pass


@agent.command()
@click.option('--agent-id', required=True, help='Agent ID')
@click.option('--status', type=click.Choice(['active', 'inactive', 'busy', 'offline']), default='active', help='Agent status')
def register(agent_id: str, status: str):
    """Register an agent"""
    try:
        agent_config = {
            "agent_id": agent_id,
            "status": status
        }
        
        http_client = AITBCHTTPClient(base_url="http://localhost:9001", timeout=30)
        result = http_client.post("/v1/agents/register", json=agent_config)
        success(f"Agent {agent_id} registered with status {status}")
    except NetworkError as e:
        error(f"Error registering agent: {e}")
    except Exception as e:
        error(f"Error: {e}")


@agent.command()
@click.option('--status', help='Filter by status')
@click.option('--format', type=click.Choice(['table', 'json']), default='table', help='Output format')
def list(status: Optional[str], format: str):
    """List registered agents"""
    try:
        import requests
        coordinator_url = "http://localhost:9001"
        
        query = {}
        if status:
            query["status"] = status
        
        response = requests.post(f"{coordinator_url}/v1/agents/discover", json=query, timeout=10)
        
        if response.status_code == 200:
            data = response.json()
            agents = data.get("agents", [])
            success(f"Agents: {len(agents)}")
            if format == 'json':
                click.echo(json.dumps(agents, indent=2))
            else:
                for agent in agents:
                    click.echo(f"  - {agent.get('agent_id', 'unknown')}: {agent.get('status', 'unknown')} - {agent.get('agent_type', 'unknown')}")
        else:
            error(f"Error listing agents: {response.status_code}")
    except Exception as e:
        error(f"Error: {e}")


@agent.command()
@click.argument('agent_id')
def deregister(agent_id: str):
    """Deregister an agent"""
    try:
        http_client = AITBCHTTPClient(base_url="http://localhost:9001", timeout=30)
        result = http_client.post(f"/v1/agents/{agent_id}/deregister")
        success(f"Agent {agent_id} deregistered")
    except NetworkError as e:
        error(f"Error deregistering agent: {e}")
    except Exception as e:
        error(f"Error: {e}")


@agent.command()
@click.option('--agent', required=True, help='Recipient agent address')
@click.option('--message', required=True, help='Message content')
@click.option('--wallet', required=True, help='Wallet name for signing')
@click.option('--password', help='Wallet password')
@click.option('--password-file', help='File containing wallet password')
@click.option('--rpc-url', help='Blockchain RPC URL')
def message(agent: str, message: str, wallet: str, password: Optional[str], password_file: Optional[str], rpc_url: Optional[str]):
    """Send message to agent via blockchain transaction"""
    if not rpc_url:
        rpc_url = DEFAULT_RPC_URL
    
    # Get password
    if password_file:
        with open(password_file) as f:
            password = f.read().strip()
    elif not password:
        import getpass
        password = getpass.getpass("Enter wallet password: ")
    
    try:
        # Decrypt wallet
        keystore_path = DEFAULT_KEYSTORE_DIR / f"{wallet}.json"
        private_key_hex = decrypt_private_key(keystore_path, password)
        private_key_bytes = bytes.fromhex(private_key_hex)
        
        # Get sender address
        with open(keystore_path) as f:
            keystore_data = json.load(f)
        sender_address = keystore_data['address']
        
        # Create transaction with message as payload
        priv_key = ed25519.Ed25519PrivateKey.from_private_bytes(private_key_bytes)
        pub_hex = priv_key.public_key().public_bytes(
            encoding=serialization.Encoding.Raw,
            format=serialization.PublicFormat.Raw
        ).hex()
        
        # Get chain_id
        from ..utils.chain_id import get_chain_id
        chain_id = get_chain_id(rpc_url)
        
        # Get actual nonce
        try:
            http_client = AITBCHTTPClient(base_url=rpc_url, timeout=5)
            account_data = http_client.get(f"/rpc/account/{sender_address}")
            actual_nonce = account_data.get("nonce", 0)
        except Exception:
            actual_nonce = 0
        
        tx = {
            "type": "TRANSFER",
            "chain_id": chain_id,
            "from": sender_address,
            "nonce": actual_nonce,
            "fee": 10,
            "payload": {
                "recipient": agent,
                "amount": 0,
                "message": message
            }
        }
        
        # Sign transaction
        tx_string = json.dumps(tx, sort_keys=True)
        tx["signature"] = priv_key.sign(tx_string.encode()).hex()
        tx["public_key"] = pub_hex
        
        # Submit transaction
        http_client = AITBCHTTPClient(base_url=rpc_url, timeout=30)
        result = http_client.post("/rpc/transaction", json=tx)
        success(f"Message sent successfully")
        click.echo(f"From: {sender_address}")
        click.echo(f"To: {agent}")
        click.echo(f"Content: {message}")
        click.echo(f"TX Hash: {result.get('transaction_hash', 'unknown')}")
    except Exception as e:
        error(f"Error sending message: {e}")