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import tempfile
import numpy as np
import soundfile as sf
from pathlib import Path
from typing import Dict, List, Optional, Tuple, Union
import logging
from straycat import Resampler
from voice_data_converter import CompressedVoicebankManager, OtoEntry

logger = logging.getLogger(__name__)

class CompressedUTAUEngine:
    """์••์ถ•๋œ HDF5 ๋ณด์ด์Šค๋ฑ…ํฌ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” UTAU ํ˜ธํ™˜ ์Œ์„ฑ ํ•ฉ์„ฑ ์—”์ง„"""

    def __init__(self, compressed_voicebank_path: Union[str, Path]):
        self.voicebank = CompressedVoicebankManager(compressed_voicebank_path)
        self.default_phoneme = "ใ‚"  # ๊ธฐ๋ณธ ์Œ์†Œ
        logger.info(f"์••์ถ•๋œ UTAU ์—”์ง„ ์ดˆ๊ธฐํ™” ์™„๋ฃŒ")

    def synthesize_sequence(self,
                          notes: List[Dict],
                          lyrics: List[str],
                          tempo: int = 120,
                          volume: int = 100) -> Tuple[Optional[str], str]:
        """๋…ธํŠธ ์‹œํ€€์Šค์™€ ๊ฐ€์‚ฌ๋กœ ์Œ์„ฑ ํ•ฉ์„ฑ"""

        if len(notes) != len(lyrics):
            return None, "๋…ธํŠธ์™€ ๊ฐ€์‚ฌ์˜ ๊ฐœ์ˆ˜๊ฐ€ ์ผ์น˜ํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค."

        if not notes:
            return None, "ํ•ฉ์„ฑํ•  ๋…ธํŠธ๊ฐ€ ์—†์Šต๋‹ˆ๋‹ค."

        try:
            # ์ „์ฒด ์‹œํ€€์Šค ๊ธธ์ด ๊ณ„์‚ฐ
            max_end_time = max(note.get('endSeconds',
                                      note.get('startSeconds', 0) + note.get('durationSeconds', 0.5))
                              for note in notes)

            sample_rate = 44100
            total_samples = int(max_end_time * sample_rate) + sample_rate
            final_audio = np.zeros(total_samples)

            # ๊ฐ ๋…ธํŠธ ํ•ฉ์„ฑ
            for i, (note, lyric) in enumerate(zip(notes, lyrics)):
                try:
                    # ์Œ์†Œ ๋ณ€ํ™˜
                    phoneme = self._lyric_to_phoneme(lyric)

                    # oto ์—”ํŠธ๋ฆฌ ์ฐพ๊ธฐ
                    oto_entry = self.voicebank.get_sample_for_phoneme(phoneme)
                    if not oto_entry:
                        logger.warning(f"์Œ์†Œ '{phoneme}'์— ํ•ด๋‹นํ•˜๋Š” ์ƒ˜ํ”Œ์„ ์ฐพ์„ ์ˆ˜ ์—†์Œ")
                        continue

                    # ์˜ค๋””์˜ค ๋ฐ์ดํ„ฐ ๋กœ๋“œ (์••์ถ•๋œ ๋ฐ์ดํ„ฐ์—์„œ)
                    audio_result = self.voicebank.get_audio_data(oto_entry.filename)
                    if not audio_result:
                        logger.warning(f"์˜ค๋””์˜ค ํŒŒ์ผ ๋กœ๋“œ ์‹คํŒจ: {oto_entry.filename}")
                        continue

                    source_audio, source_sample_rate = audio_result

                    # ๋…ธํŠธ ํ•ฉ์„ฑ
                    synth_audio = self._synthesize_note(
                        note, oto_entry, source_audio, source_sample_rate, tempo, volume
                    )

                    if synth_audio is not None:
                        # ์‹œ๊ฐ„ ์œ„์น˜ ๊ณ„์‚ฐ ๋ฐ ์˜ค๋””์˜ค ๋ฐฐ์น˜
                        start_sample = int(note.get('startSeconds', 0) * sample_rate)
                        end_sample = start_sample + len(synth_audio)

                        if end_sample <= len(final_audio):
                            final_audio[start_sample:end_sample] += synth_audio * (note.get('velocity', 100) / 100)
                        else:
                            # ๋ฒ„ํผ ํ™•์žฅ
                            new_size = end_sample + sample_rate
                            new_final_audio = np.zeros(new_size)
                            new_final_audio[:len(final_audio)] = final_audio
                            new_final_audio[start_sample:end_sample] += synth_audio * (note.get('velocity', 100) / 100)
                            final_audio = new_final_audio

                        logger.info(f"๋…ธํŠธ {i+1} ํ•ฉ์„ฑ ์™„๋ฃŒ: {phoneme}")

                except Exception as e:
                    logger.error(f"๋…ธํŠธ {i+1} ํ•ฉ์„ฑ ์‹คํŒจ: {e}")
                    continue

            # ์ตœ์ข… ์˜ค๋””์˜ค ์ •๊ทœํ™”
            if np.max(np.abs(final_audio)) > 0:
                final_audio = final_audio / np.max(np.abs(final_audio)) * 0.85

            # ์ž„์‹œ ํŒŒ์ผ ์ €์žฅ
            output_file = tempfile.NamedTemporaryFile(suffix='.wav', delete=False)
            sf.write(output_file.name, final_audio, sample_rate)
            output_file.close()

            duration_sec = len(final_audio) / sample_rate
            return output_file.name, f"โœ… ์••์ถ•๋œ ๋ณด์ด์Šค๋ฑ…ํฌ๋กœ ํ•ฉ์„ฑ ์™„๋ฃŒ: {len(notes)}๊ฐœ ๋…ธํŠธ, {duration_sec:.1f}์ดˆ"

        except Exception as e:
            logger.error(f"์‹œํ€€์Šค ํ•ฉ์„ฑ ์‹คํŒจ: {e}")
            return None, f"โŒ ํ•ฉ์„ฑ ์‹คํŒจ: {str(e)}"

    def _lyric_to_phoneme(self, lyric: str) -> str:
        """๊ฐ€์‚ฌ๋ฅผ ์Œ์†Œ๋กœ ๋ณ€ํ™˜ (๊ธฐ์กด ๋กœ์ง๊ณผ ๋™์ผ)"""
        lyric = lyric.strip()
        if not lyric:
            return self.default_phoneme

        # ํ•œ๊ธ€ โ†’ ์ผ๋ณธ์–ด ์Œ์†Œ ๋ณ€ํ™˜ (๊ฐ„๋‹จํ•œ ๋งคํ•‘)
        hangul_to_japanese = {
            '๊ฐ€': 'ka', '๋‚˜': 'na', '๋‹ค': 'da', '๋ผ': 'ra', '๋งˆ': 'ma',
            '๋ฐ”': 'ba', '์‚ฌ': 'sa', '์•„': 'a', '์ž': 'za', '์ฐจ': 'cha',
            '์นด': 'ka', 'ํƒ€': 'ta', 'ํŒŒ': 'pa', 'ํ•˜': 'ha',
            '๊ฑฐ': 'ke', '๋„ˆ': 'ne', '๋”': 'de', '๋Ÿฌ': 're', '๋จธ': 'me',
            '๋ฒ„': 'be', '์„œ': 'se', '์–ด': 'e', '์ €': 'ze', '์ฒ˜': 'che',
            '์ปค': 'ke', 'ํ„ฐ': 'te', 'ํผ': 'pe', 'ํ—ˆ': 'he',
            '๊ณ ': 'ko', '๋…ธ': 'no', '๋„': 'do', '๋กœ': 'ro', '๋ชจ': 'mo',
            '๋ณด': 'bo', '์†Œ': 'so', '์˜ค': 'o', '์กฐ': 'zo', '์ดˆ': 'cho',
            '์ฝ”': 'ko', 'ํ† ': 'to', 'ํฌ': 'po', 'ํ˜ธ': 'ho',
            '๊ตฌ': 'ku', '๋ˆ„': 'nu', '๋‘': 'du', '๋ฃจ': 'ru', '๋ฌด': 'mu',
            '๋ถ€': 'bu', '์ˆ˜': 'su', '์šฐ': 'u', '์ฃผ': 'zu', '์ถ”': 'chu',
            '์ฟ ': 'ku', 'ํˆฌ': 'tu', 'ํ‘ธ': 'pu', 'ํ›„': 'hu',
            '๊ธฐ': 'ki', '๋‹ˆ': 'ni', '๋””': 'di', '๋ฆฌ': 'ri', '๋ฏธ': 'mi',
            '๋น„': 'bi', '์‹œ': 'si', '์ด': 'i', '์ง€': 'zi', '์น˜': 'chi',
            'ํ‚ค': 'ki', 'ํ‹ฐ': 'ti', 'ํ”ผ': 'pi', 'ํžˆ': 'hi',
            '๋„': 'do', '๋ ˆ': 're', '๋ฏธ': 'mi', 'ํŒŒ': 'pa', '์†”': 'so', '๋ผ': 'ra', '์‹œ': 'si'
        }

        if lyric in hangul_to_japanese:
            return hangul_to_japanese[lyric]

        return lyric if lyric in self.voicebank.oto_entries else self.default_phoneme

    def _synthesize_note(self,
                        note: Dict,
                        oto_entry: OtoEntry,
                        source_audio: np.ndarray,
                        source_sample_rate: int,
                        tempo: int,
                        volume: int) -> Optional[np.ndarray]:
        """๊ฐœ๋ณ„ ๋…ธํŠธ ํ•ฉ์„ฑ (์••์ถ•๋œ ์˜ค๋””์˜ค ๋ฐ์ดํ„ฐ ์‚ฌ์šฉ)"""

        try:
            # ์ž„์‹œ ํŒŒ์ผ์— ์›๋ณธ ์˜ค๋””์˜ค ์ €์žฅ
            temp_input = tempfile.NamedTemporaryFile(suffix='.wav', delete=False)
            sf.write(temp_input.name, source_audio, source_sample_rate)
            temp_input.close()

            # ์ถœ๋ ฅ ํŒŒ์ผ
            temp_output = tempfile.NamedTemporaryFile(suffix='.wav', delete=False)
            temp_output.close()

            # ๋…ธํŠธ ์ •๋ณด ์ถ”์ถœ
            pitch = note['pitch']
            duration_ms = note.get('durationSeconds', 0.5) * 1000
            velocity = note.get('velocity', 100)

            # MIDI ๋…ธํŠธ๋ฅผ ์Œ๊ณ„๋ช…์œผ๋กœ ๋ณ€ํ™˜
            note_name = self._midi_to_note_name(pitch)

            # straycat Resampler๋กœ ํ•ฉ์„ฑ
            resampler = Resampler(
                in_file=temp_input.name,
                out_file=temp_output.name,
                pitch=note_name,
                velocity=velocity,
                length=max(duration_ms, 200),  # ์ตœ์†Œ 200ms
                volume=volume,
                offset=oto_entry.offset,
                consonant=oto_entry.consonant,
                cutoff=oto_entry.cutoff,
                modulation=10,
                tempo=f'!{tempo}'
            )

            # ํ•ฉ์„ฑ๋œ ์˜ค๋””์˜ค ๋กœ๋“œ
            if Path(temp_output.name).exists():
                synth_audio, _ = sf.read(temp_output.name)

                # ์ •๋ฆฌ
                Path(temp_input.name).unlink(missing_ok=True)
                Path(temp_output.name).unlink(missing_ok=True)

                return synth_audio
            else:
                logger.error(f"ํ•ฉ์„ฑ๋œ ํŒŒ์ผ์ด ์ƒ์„ฑ๋˜์ง€ ์•Š์Œ: {temp_output.name}")
                return None

        except Exception as e:
            logger.error(f"๋…ธํŠธ ํ•ฉ์„ฑ ์‹คํŒจ: {e}")
            return None

    def _midi_to_note_name(self, midi_note: int) -> str:
        """MIDI ๋…ธํŠธ ๋ฒˆํ˜ธ๋ฅผ ์Œ๊ณ„๋ช…์œผ๋กœ ๋ณ€ํ™˜"""
        notes = ['C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#', 'A', 'A#', 'B']
        octave = (midi_note // 12) - 1
        note = notes[midi_note % 12]
        return f"{note}{octave}"

    def get_available_phonemes(self) -> List[str]:
        """์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ์Œ์†Œ ๋ชฉ๋ก ๋ฐ˜ํ™˜"""
        return self.voicebank.list_available_phonemes()

    def get_compression_info(self) -> Dict[str, any]:
        """์••์ถ• ์ •๋ณด ๋ฐ˜ํ™˜"""
        return self.voicebank.get_compression_info()