# tool/core/cmd/put_file.py
import struct
import zlib
from pathlib import Path
from rich.progress import Progress, SpinnerColumn, TextColumn, BarColumn, DownloadColumn, TransferSpeedColumn, TimeRemainingColumn
from core.utils import console, console_err
from core.protocol import COMMANDS
from core.tag import TagManager
from core.cmd.put_tags import put_tags

class put_file:
    def __init__(self, bus):
        self.bus = bus

    def get(self, source_path: str, dest_path: str, cli_tags_json: str = None):
        try:
            p = Path(source_path)
            if not p.exists() or not p.is_file():
                console_err.print(f"Fehler: Quelldatei existiert nicht: {source_path}")
                return None
            with open(p, 'rb') as f:
                file_data = f.read()
        except Exception as e:
            console_err.print(f"Fehler beim Lesen: {e}")
            return None

        # 1. Lokale Tags abtrennen
        audio_data, local_tlvs = TagManager.split_file(file_data)
        audio_size = len(audio_data)

        # 2. Upload der REINEN Audiodaten
        dest_path_bytes = dest_path.encode('utf-8')
        payload = struct.pack('B', len(dest_path_bytes)) + dest_path_bytes + struct.pack('<I', audio_size)
        
        self.bus.send_request(COMMANDS['put_file'], payload)
        self.bus.receive_ack(timeout=5.0)

        with Progress(SpinnerColumn(), TextColumn("[progress.description]{task.description}"), BarColumn(), DownloadColumn(), TransferSpeedColumn(), "•", TimeRemainingColumn(), console=console, transient=False) as progress:
            task = progress.add_task(f"Sende {source_path}...", total=audio_size)
            stream_res = self.bus.send_stream(audio_data, progress_callback=lambda sent, total: progress.update(task, total=total, completed=sent))  
        
        if not stream_res: return None
        
        remote_crc = stream_res.get('crc32')
        local_crc = zlib.crc32(audio_data) & 0xFFFFFFFF
        
        if local_crc != remote_crc:
            return {'success': False, 'source_path': source_path, 'crc32_remote': remote_crc, 'crc32_local': local_crc}

        # 3. Tags aktualisieren (CRC32 + evtl. CLI-Tags)
        # Alten CRC-Tag entfernen, neuen einsetzen
        final_tlvs = [t for t in local_tlvs if not (t['type'] == 0x00 and t['index'] == 0x01)]
        final_tlvs.append({'type': 0x00, 'index': 0x01, 'value': struct.pack('<I', local_crc)})

        # Falls CLI-Tags übergeben wurden (-t), diese priorisiert anwenden
        if cli_tags_json:
            try:
                cli_tlvs = TagManager.parse_cli_json(cli_tags_json)
                # Bestehendes JSON löschen, wenn neues im CLI-Input definiert ist
                if any(t['type'] == 0x10 for t in cli_tlvs):
                    final_tlvs = [t for t in final_tlvs if t['type'] != 0x10]
                final_tlvs.extend(cli_tlvs)
            except ValueError as e:
                console_err.print(f"[warning]Warnung: Tags konnten nicht geparst werden ({e}). Datei wurde ohne extra Tags hochgeladen.[/warning]")

        # 4. Tags via separatem Befehl anhängen
        tag_cmd = put_tags(self.bus)
        tag_blob = TagManager.build_blob(final_tlvs)
        tag_cmd.send_blob(dest_path, tag_blob)

        return {
            'success': True,
            'source_path': source_path,
            'dest_path': dest_path,
            'crc32_remote': remote_crc,
            'crc32_local': local_crc,
            'size': audio_size,
            'duration': stream_res.get('duration')
        }

    def print(self, result):
        if not result:
            return

        if result.get('success'):
            console.print(f"✓ Datei [info]{result['source_path']}[/info] erfolgreich hochgeladen und Tags generiert.")
            console.print(f"  • Größe:      [info]{result['size'] / 1024:.2f} KB[/info]")
        else:
            console_err.print(f"❌ CRC-FEHLER: Datei [error]{result['source_path']}[/error] wurde auf dem Gerät korrumpiert!")
        
        if 'crc32_remote' in result:
            console.print(f"  • Remote CRC: [info]{result['crc32_remote']:08X}[/info]")
        if 'crc32_local' in result:
            console.print(f"  • Local CRC:  [info]{result['crc32_local']:08X}[/info]")
            
        if 'dest_path' in result:
            console.print(f"  • Zielpfad:   [info]{result['dest_path']}[/info]")
            
        if result.get('duration') is not None and result.get('duration') > 0:
            console.print(f"  • Dauer:      [info]{result['duration']:.2f} s[/info]")