"""Split and upload large file to server via JumpServer base64 chunks."""
import base64
import hashlib
import os
import subprocess
import sys
import time

PYTHON = r"C:\Users\simon\.workbuddy\binaries\python\versions\3.13.12\python.exe"
JMS = r"C:\Users\simon\.workbuddy\skills\jumpserver-ops\scripts\jms_ops.py"
LOCAL_FILE = r"D:\资料\03-项目开发\wecom_it_smart_desk\deploy_agent_v8.tar.gz"
REMOTE_FILE = "/tmp/deploy_agent_v8.tar.gz"
CHUNK_SIZE = 12 * 1024  # 12KB raw -> ~16KB base64, safe for command line

def run_jms(*args, timeout=30):
    cmd = [PYTHON, JMS] + list(args)
    result = subprocess.run(cmd, capture_output=True, timeout=timeout)
    out = result.stdout.decode('utf-8', errors='replace') if result.stdout else ''
    err = result.stderr.decode('utf-8', errors='replace') if result.stderr else ''
    return out + err

def main():
    with open(LOCAL_FILE, "rb") as f:
        data = f.read()
    
    md5 = hashlib.md5(data).hexdigest()
    total_chunks = (len(data) + CHUNK_SIZE - 1) // CHUNK_SIZE
    print(f"File: {LOCAL_FILE}")
    print(f"Size: {len(data)} bytes ({len(data)/1024/1024:.2f} MB)")
    print(f"MD5: {md5}")
    print(f"Chunks: {total_chunks} (chunk size: {CHUNK_SIZE} bytes)")
    print()
    
    # Clear remote file
    print("Clearing remote file...")
    run_jms("exec", "-c", f"rm -f {REMOTE_FILE}", "--cmd-timeout", "10")
    
    # Upload chunks
    for i in range(total_chunks):
        chunk = data[i * CHUNK_SIZE : (i + 1) * CHUNK_SIZE]
        b64 = base64.b64encode(chunk).decode("ascii")
        cmd = f'echo -n "{b64}" | base64 -d >> {REMOTE_FILE}'
        
        result = run_jms("exec", "-c", cmd, "--cmd-timeout", "15")
        
        if (i + 1) % 20 == 0 or i == total_chunks - 1:
            print(f"  Uploaded chunk {i + 1}/{total_chunks} ({(i + 1) * 100 // total_chunks}%)")
        
        # Check for errors
        if "error" in result.lower() and "traceback" not in result.lower():
            # jms_ops.py always prints some status, check if the command actually failed
            pass
    
    # Verify MD5
    print("\nVerifying MD5...")
    result = run_jms("exec", "-c", f"md5sum {REMOTE_FILE}", "--cmd-timeout", "15")
    print(f"  Remote MD5: {result.strip()}")
    print(f"  Local MD5:  {md5}")
    
    if md5 in result:
        print("\n✅ MD5 verified - upload successful!")
    else:
        print("\n❌ MD5 mismatch - upload may be corrupted!")
        sys.exit(1)

if __name__ == "__main__":
    main()