AI修饰与电影修复：老电影的数字重生与NFT化

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";

contract FilmRestorationNFT is ERC721, AccessControl, ReentrancyGuard {
    bytes32 public constant RESTORER_ROLE = keccak256("RESTORER_ROLE");
    bytes32 public constant ARCHIVIST_ROLE = keccak256("ARCHIVIST_ROLE");

    enum FilmEra {
        SILENT,         // 默片时代 (1890s-1920s)
        GOLDEN_AGE,     // 黄金时代 (1930s-1950s)
        NEW_WAVE,       // 新浪潮 (1960s-1970s)
        MODERN,         // 现代 (1980s-2000s)
        DIGITAL        // 数字时代 (2000s-present)
    }

    enum RestorationMethod {
        MANUAL,          // 人工修复
        DIGITAL,         // 数字修复
        AI_ASSISTED,     // AI辅助修复
        AI_FULL,         // 全AI修复
        HYBRID           // 混合修复
    }

    enum RestorationStatus {
        ORIGINAL,        // 原始胶片
        SCANNED,         // 已扫描
        RESTORING,       // 修复中
        RESTORED,        // 已修复
        ENHANCED,        // 已增强
        TOKENIZED,       // 已Token化
        ARCHIVED         // 已归档
    }

    struct FilmAsset {
        uint256 filmId;
        string title;
        string originalTitle;
        string director;
        uint256 year;
        FilmEra era;
        string originalFormat;
        uint256 originalRuntime;
        string originalLanguage;
        string country;
        string description;
        string ipfsOriginalURI;     // 原始胶片IPFS URI
        string ipfsRestoredURI;     // 修复后IPFS URI
        string ipfsMetadataURI;     // 元数据IPFS URI
        RestorationStatus status;
        bool isPublicDomain;
        bool isLost;
    }

    struct RestorationRecord {
        uint256 recordId;
        uint256 filmId;
        address restorer;
        RestorationMethod method;
        string aiModelUsed;
        string parameters;
        string beforeCID;
        string afterCID;
        uint256 timestamp;
        uint256 qualityScore;       // 0-10000
        bytes32 restorationHash;
        bool isVerified;
    }

    struct DigitalRebirth {
        uint256 rebirthId;
        uint256 filmId;
        uint256 tokenId;
        address minter;
        uint256 rebirthDate;
        string rebirthDescription;
        uint256 editionSize;
        uint256 editionNumber;
        uint256 royaltyBasisPoints;
        bool isOriginalEdition;
    }

    mapping(uint256 => FilmAsset) public filmAssets;
    mapping(uint256 => RestorationRecord) public restorationRecords;
    mapping(uint256 => DigitalRebirth) public digitalRebirths;
    mapping(uint256 => uint256[]) public filmRestorations;
    mapping(address => uint256[]) public restorerRecords;
    mapping(uint256 => uint256) public tokenToFilm;

    uint256 private _filmCounter;
    uint256 private _recordCounter;
    uint256 private _rebirthCounter;
    uint256 public constant MAX_QUALITY_SCORE = 10000;
    uint256 public constant MIN_QUALITY_SCORE = 1000;

    event FilmRegistered(
        uint256 indexed filmId,
        string title,
        string director,
        uint256 year,
        FilmEra era
    );

    event RestorationCompleted(
        uint256 indexed recordId,
        uint256 indexed filmId,
        address indexed restorer,
        RestorationMethod method,
        uint256 qualityScore
    );

    event DigitalRebirth(
        uint256 indexed rebirthId,
        uint256 indexed filmId,
        uint256 indexed tokenId,
        address minter,
        uint256 editionNumber
    );

    event FilmVerified(
        uint256 indexed filmId,
        bool isAuthentic
    );

    constructor() ERC721("FilmRestorationNFT", "FRNFT") {
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _grantRole(RESTORER_ROLE, msg.sender);
        _grantRole(ARCHIVIST_ROLE, msg.sender);
    }

    function registerFilm(
        string memory _title,
        string memory _originalTitle,
        string memory _director,
        uint256 _year,
        FilmEra _era,
        string memory _originalFormat,
        uint256 _originalRuntime,
        string memory _originalLanguage,
        string memory _country,
        string memory _description,
        string memory _ipfsOriginalURI,
        bool _isPublicDomain,
        bool _isLost
    ) external onlyRole(ARCHIVIST_ROLE) returns (uint256) {
        _filmCounter++;
        uint256 filmId = _filmCounter;

        filmAssets[filmId] = FilmAsset({
            filmId: filmId,
            title: _title,
            originalTitle: _originalTitle,
            director: _director,
            year: _year,
            era: _era,
            originalFormat: _originalFormat,
            originalRuntime: _originalRuntime,
            originalLanguage: _originalLanguage,
            country: _country,
            description: _description,
            ipfsOriginalURI: _ipfsOriginalURI,
            ipfsRestoredURI: "",
            ipfsMetadataURI: "",
            status: RestorationStatus.ORIGINAL,
            isPublicDomain: _isPublicDomain,
            isLost: _isLost
        });

        emit FilmRegistered(filmId, _title, _director, _year, _era);
        return filmId;
    }

    function recordRestoration(
        uint256 _filmId,
        RestorationMethod _method,
        string memory _aiModelUsed,
        string memory _parameters,
        string memory _beforeCID,
        string memory _afterCID,
        uint256 _qualityScore
    ) external onlyRole(RESTORER_ROLE) returns (uint256) {
        require(_qualityScore <= MAX_QUALITY_SCORE, "Invalid quality score");
        require(_qualityScore >= MIN_QUALITY_SCORE, "Quality score too low");

        _recordCounter++;
        uint256 recordId = _recordCounter;

        restorationRecords[recordId] = RestorationRecord({
            recordId: recordId,
            filmId: _filmId,
            restorer: msg.sender,
            method: _method,
            aiModelUsed: _aiModelUsed,
            parameters: _parameters,
            beforeCID: _beforeCID,
            afterCID: _afterCID,
            timestamp: block.timestamp,
            qualityScore: _qualityScore,
            restorationHash: keccak256(abi.encodePacked(_filmId, _afterCID, _qualityScore, block.timestamp)),
            isVerified: false
        });

        filmRestorations[_filmId].push(recordId);
        restorerRecords[msg.sender].push(recordId);

        FilmAsset storage film = filmAssets[_filmId];
        if (film.status == RestorationStatus.ORIGINAL || film.status == RestorationStatus.SCANNED) {
            film.status = RestorationStatus.RESTORING;
        }

        emit RestorationCompleted(recordId, _filmId, msg.sender, _method, _qualityScore);
        return recordId;
    }

    function verifyRestoration(
        uint256 _recordId,
        bool _isAuthentic
    ) external onlyRole(ARCHIVIST_ROLE) {
        RestorationRecord storage record = restorationRecords[_recordId];
        require(!record.isVerified, "Already verified");

        record.isVerified = _isAuthentic;

        if (_isAuthentic) {
            FilmAsset storage film = filmAssets[record.filmId];
            film.ipfsRestoredURI = record.afterCID;
            film.status = RestorationStatus.RESTORED;
        }

        emit FilmVerified(record.filmId, _isAuthentic);
    }

    function mintRebirthNFT(
        uint256 _filmId,
        string memory _rebirthDescription,
        uint256 _editionSize,
        uint256 _royaltyBasisPoints,
        string memory _ipfsMetadataURI
    ) external returns (uint256) {
        FilmAsset storage film = filmAssets[_filmId];
        require(film.status >= RestorationStatus.RESTORED, "Film not restored yet");
        require(_royaltyBasisPoints <= 10000, "Invalid royalty");

        _rebirthCounter++;
        uint256 rebirthId = _rebirthCounter;

        uint256 tokenId = uint256(keccak256(abi.encodePacked(_filmId, _rebirthCounter, msg.sender)));
        _safeMint(msg.sender, tokenId);

        film.tokenToFilm = rebirthId;

        digitalRebirths[rebirthId] = DigitalRebirth({
            rebirthId: rebirthId,
            filmId: _filmId,
            tokenId: tokenId,
            minter: msg.sender,
            rebirthDate: block.timestamp,
            rebirthDescription: _rebirthDescription,
            editionSize: _editionSize,
            editionNumber: 1,
            royaltyBasisPoints: _royaltyBasisPoints,
            isOriginalEdition: true
        });

        tokenToFilm[tokenId] = _filmId;

        film.status = RestorationStatus.TOKENIZED;
        film.ipfsMetadataURI = _ipfsMetadataURI;

        emit DigitalRebirth(rebirthId, _filmId, tokenId, msg.sender, 1);
        return tokenId;
    }

    function getFilmDetails(uint256 _filmId) external view returns (FilmAsset memory) {
        return filmAssets[_filmId];
    }

    function getRestorationHistory(uint256 _filmId) external view returns (uint256[] memory) {
        return filmRestorations[_filmId];
    }

    function getRestorationRecord(uint256 _recordId) external view returns (RestorationRecord memory) {
        return restorationRecords[_recordId];
    }

    function getRebirthInfo(uint256 _rebirthId) external view returns (DigitalRebirth memory) {
        return digitalRebirths[_rebirthId];
    }

    function supportsInterface(bytes4 interfaceId) public view override(ERC721, AccessControl) returns (bool) {
        return super.supportsInterface(interfaceId);
    }
}

import json
import time
import hashlib
from dataclasses import dataclass
from typing import Dict, List, Optional, Tuple
from enum import Enum

class FilmEra(Enum):
    SILENT = "silent_era"
    GOLDEN_AGE = "golden_age"
    NEW_WAVE = "new_wave"
    MODERN = "modern"
    DIGITAL = "digital"

class RestorationMethod(Enum):
    MANUAL = "manual"
    DIGITAL = "digital"
    AI_ASSISTED = "ai_assisted"
    AI_FULL = "ai_full"
    HYBRID = "hybrid"

class RestorationStatus(Enum):
    ORIGINAL = "original"
    SCANNED = "scanned"
    RESTORING = "restoring"
    RESTORED = "restored"
    ENHANCED = "enhanced"
    TOKENIZED = "tokenized"

@dataclass
class FilmAsset:
    film_id: int
    title: str
    director: str
    year: int
    era: FilmEra
    original_format: str
    is_lost: bool
    is_public_domain: bool
    original_uri: str
    restored_uri: str
    status: RestorationStatus

@dataclass
class RestorationRecord:
    record_id: int
    film_id: int
    restorer: str
    method: RestorationMethod
    ai_model: str
    quality_score: float
    timestamp: int
    is_verified: bool

@dataclass
class DigitalRebirth:
    rebirth_id: int
    film_id: int
    token_id: int
    minter: str
    description: str
    royalty: int


class FilmRestorationPlatform:
    """
    老电影AI修复与NFT化平台
    """

    def __init__(self):
        self.films: Dict[int, FilmAsset] = {}
        self.restorations: Dict[int, RestorationRecord] = {}
        self.rebirths: Dict[int, DigitalRebirth] = {}
        self.film_counter = 0
        self.restoration_counter = 0
        self.rebirth_counter = 0

    def _hash(self, *args) -> str:
        return hashlib.sha256(":".join(str(a) for a in args).encode()).hexdigest()

    def register_film(
        self,
        title: str,
        director: str,
        year: int,
        era: FilmEra,
        original_format: str,
        original_uri: str,
        is_lost: bool = False,
        is_public_domain: bool = True
    ) -> int:
        self.film_counter += 1
        film_id = self.film_counter

        film = FilmAsset(
            film_id=film_id,
            title=title,
            director=director,
            year=year,
            era=era,
            original_format=original_format,
            is_lost=is_lost,
            is_public_domain=is_public_domain,
            original_uri=original_uri,
            restored_uri="",
            status=RestorationStatus.ORIGINAL
        )

        self.films[film_id] = film

        print(f"[注册] #{film_id}: {title} ({year})")
        print(f"  导演: {director}, 年代: {era.value}")
        print(f"  格式: {original_format}, 遗失: {is_lost}")
        print(f"  公有领域: {is_public_domain}")

        return film_id

    def ai_restore(
        self,
        film_id: int,
        restorer: str,
        method: RestorationMethod,
        ai_model: str,
        enhanced_uri: str
    ) -> int:
        if film_id not in self.films:
            raise ValueError(f"电影 #{film_id} 不存在")

        film = self.films[film_id]
        self.restoration_counter += 1
        record_id = self.restoration_counter

        # 模拟AI修复质量评分
        quality_score = 0.0
        if method == RestorationMethod.AI_FULL:
            quality_score = random.uniform(0.7, 0.95)
        elif method == RestorationMethod.HYBRID:
            quality_score = random.uniform(0.85, 0.99)
        elif method == RestorationMethod.AI_ASSISTED:
            quality_score = random.uniform(0.75, 0.92)
        else:
            quality_score = random.uniform(0.6, 0.85)

        record = RestorationRecord(
            record_id=record_id,
            film_id=film_id,
            restorer=restorer,
            method=method,
            ai_model=ai_model,
            quality_score=quality_score,
            timestamp=int(time.time()),
            is_verified=False
        )

        self.restorations[record_id] = record
        film.restored_uri = enhanced_uri
        film.status = RestorationStatus.RESTORING

        print(f"[修复] #{record_id}: {film.title}")
        print(f"  方法: {method.value}, AI模型: {ai_model}")
        print(f"  质量分: {quality_score:.1%}")

        return record_id

    def verify_restoration(self, record_id: int, verified: bool) -> bool:
        if record_id not in self.restorations:
            raise ValueError(f"修复记录 #{record_id} 不存在")

        record = self.restorations[record_id]
        record.is_verified = verified

        if verified:
            film = self.films[record.film_id]
            film.status = RestorationStatus.RESTORED

        print(f"[验证] #{record_id}: {'通过' if verified else '未通过'}")
        return True

    def mint_rebirth_nft(
        self,
        film_id: int,
        minter: str,
        description: str,
        royalty: int = 1000
    ) -> int:
        if film_id not in self.films:
            raise ValueError(f"电影 #{film_id} 不存在")

        film = self.films[film_id]
        if film.status != RestorationStatus.RESTORED:
            raise ValueError(f"电影 #{film_id} 尚未修复完成")

        self.rebirth_counter += 1
        rebirth_id = self.rebirth_counter
        token_id = int(self._hash(str(film_id), str(rebirth_id), minter), 16) % (10**18)

        rebirth = DigitalRebirth(
            rebirth_id=rebirth_id,
            film_id=film_id,
            token_id=token_id,
            minter=minter,
            description=description,
            royalty=royalty
        )

        self.rebirths[rebirth_id] = rebirth
        film.status = RestorationStatus.TOKENIZED

        print(f"[重生] #{rebirth_id}: {film.title} → Token #{token_id}")
        print(f"  铸造者: {minter[:8]}, 版税: {royalty/100:.1f}%")
        print(f"  描述: {description}")

        return token_id

    def simulate_film_restoration(self) -> Dict:
        """
        模拟老电影AI修复与NFT化全流程
        """
        print(f"\n{'='*60}")
        print(f"  老电影AI修复与NFT化模拟")
        print(f"  数字重生与链上版权")
        print(f"{'='*60}\n")

        import random

        # 1. 注册老电影
        print(">>> 1. 注册老电影\n")

        film1 = self.register_film(
            title="《月球旅行记》",
            director="乔治·梅里爱",
            year=1902,
            era=FilmEra.SILENT,
            original_format="35mm胶片",
            original_uri="ipfs://QmOriginal...LeVoyageDansLaLune",
            is_lost=False,
            is_public_domain=True
        )

        film2 = self.register_film(
            title="《大都会》",
            director="弗里茨·朗",
            year=1927,
            era=FilmEra.SILENT,
            original_format="35mm胶片（部分遗失）",
            original_uri="ipfs://QmOriginal...Metropolis",
            is_lost=True,
            is_public_domain=True
        )

        film3 = self.register_film(
            title="《卡萨布兰卡》",
            director="迈克尔·柯蒂兹",
            year=1942,
            era=FilmEra.GOLDEN_AGE,
            original_format="35mm胶片",
            original_uri="ipfs://QmOriginal...Casablanca",
            is_lost=False,
            is_public_domain=False
        )

        # 2. AI修复
        print("\n>>> 2. AI修复过程\n")

        # 修复《月球旅行记》
        r1 = self.ai_restore(
            film_id=film1,
            restorer="0xAIRestorer...Lab1",
            method=RestorationMethod.HYBRID,
            ai_model="Real-ESRGAN + DeOldify + GFPGAN",
            enhanced_uri="ipfs://QmEnhanced...LeVoyage4K"
        )
        self.verify_restoration(r1, True)

        # 修复《大都会》（遗失片段重建）
        r2 = self.ai_restore(
            film_id=film2,
            restorer="0xAIRestorer...Institute",
            method=RestorationMethod.AI_FULL,
            ai_model="DALL-E 4 + ESRGAN + DAIN",
            enhanced_uri="ipfs://QmEnhanced...MetropolisReconstructed"
        )
        self.verify_restoration(r2, True)

        # 修复《卡萨布兰卡》
        r3 = self.ai_restore(
            film_id=film3,
            restorer="0xAIRestorer...Studio",
            method=RestorationMethod.AI_ASSISTED,
            ai_model="Topaz Video AI + Neat Video",
            enhanced_uri="ipfs://QmEnhanced...Casablanca4KHDR"
        )
        self.verify_restoration(r3, True)

        # 3. 修复细节展示
        print("\n>>> 3. 修复细节展示\n")

        for fid in [film1, film2, film3]:
            film = self.films[fid]
            print(f"\n  {film.title} ({film.year}):")
            print(f"    原始格式: {film.original_format}")
            print(f"    原始分辨率: 720x480 → 4K (3840x2160)")
            print(f"    帧率: 18fps → 60fps (AI帧插值)")
            print(f"    色彩: {'黑白→彩色（AI上色）' if film.era == FilmEra.SILENT else '彩色增强'}")
            print(f"    音频: {'静音→AI生成的配乐' if film.era == FilmEra.SILENT else '音频降噪+修复'}")

        # 4. NFT化
        print("\n>>> 4. 数字重生NFT化\n")

        nft1 = self.mint_rebirth_nft(
            film_id=film1,
            minter="0xCollector...Museum",
            description="《月球旅行记》4K修复版 - 电影诞生之初的科幻梦",
            royalty=1500
        )

        nft2 = self.mint_rebirth_nft(
            film_id=film2,
            minter="0xDAO...FilmHeritage",
            description="《大都会》遗失片段AI重建版 - 表现主义杰作的数字重生",
            royalty=2000
        )

        nft3 = self.mint_rebirth_nft(
            film_id=film3,
            minter="0xStudio...WarnerBros",
            description="《卡萨布兰卡》4K HDR修复版 - 永恒的经典",
            royalty=1000
        )

        # 5. 修复前后对比
        print("\n>>> 5. 修复效果对比\n")

        print(f"  {'电影':<20} {'修复前':<15} {'修复后':<15} {'质量分':<10}")
        print(f"  {'-'*20} {'-'*15} {'-'*15} {'-'*10}")
        for fid in [film1, film2, film3]:
            film = self.films[fid]
            film_restorations = [r for r in self.restorations.values() if r.film_id == fid]
            if film_restorations:
                r = film_restorations[-1]
                before = "颗粒感/划痕/模糊"
                after = "清晰/平滑/色彩丰富"
                print(f"  {film.title[:18]:<20} {before:<15} {after:<15} {r.quality_score:.1%}")

        print(f"\n{'='*60}")
        print(f"  模拟完成")
        print(f"{'='*60}")

        return {
            "films_registered": 3,
            "restorations_completed": 3,
            "nfts_minted": 3,
            "total_quality": sum(r.quality_score for r in self.restorations.values()) / 3
        }


def main():
    platform = FilmRestorationPlatform()
    result = platform.simulate_film_restoration()

    print(f"\n=== 模拟结果 ===")
    print(f"注册电影: {result['films_registered']}")
    print(f"修复完成: {result['restorations_completed']}")
    print(f"NFT铸造: {result['nfts_minted']}")
    print(f"平均质量分: {result['total_quality']:.1%}")


if __name__ == "__main__":
    main()