#import <React/RCTBridgeModule.h>

@interface XuqmBundleModule : NSObject <RCTBridgeModule>
@end

@implementation XuqmBundleModule

RCT_EXPORT_MODULE()

- (NSString *)bundleDir {
    NSString *appSupport = [NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES) firstObject];
    NSString *dir = [appSupport stringByAppendingPathComponent:@"rn-bundles"];
    [[NSFileManager defaultManager] createDirectoryAtPath:dir withIntermediateDirectories:YES attributes:nil error:nil];
    return dir;
}

- (NSString *)bundlePathForModule:(NSString *)moduleId {
    NSString *filename = [NSString stringWithFormat:@"%@.ios.bundle", moduleId];
    return [[self bundleDir] stringByAppendingPathComponent:filename];
}

// ── Bundle 文件操作 ──────────────────────────────────────────────────────────

RCT_EXPORT_METHOD(bundleExists:(NSString *)moduleId
                  resolver:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    NSString *path = [self bundlePathForModule:moduleId];
    BOOL exists = [[NSFileManager defaultManager] fileExistsAtPath:path];
    resolve(@(exists));
}

RCT_EXPORT_METHOD(readBundle:(NSString *)moduleId
                  resolver:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    NSString *path = [self bundlePathForModule:moduleId];
    if (![[NSFileManager defaultManager] fileExistsAtPath:path]) {
        reject(@"BUNDLE_NOT_FOUND", [NSString stringWithFormat:@"Bundle not found: %@", moduleId], nil);
        return;
    }
    NSError *error = nil;
    NSString *content = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:&error];
    if (error) {
        reject(@"BUNDLE_READ_ERROR", error.localizedDescription, error);
        return;
    }
    resolve(content);
}

RCT_EXPORT_METHOD(writeBundle:(NSString *)moduleId
                  source:(NSString *)source
                  md5:(NSString *)md5
                  resolver:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    NSString *path = [self bundlePathForModule:moduleId];
    NSError *error = nil;
    [source writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:&error];
    if (error) {
        reject(@"BUNDLE_WRITE_ERROR", error.localizedDescription, error);
        return;
    }
    resolve(@(YES));
}

RCT_EXPORT_METHOD(deleteBundle:(NSString *)moduleId
                  resolver:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    NSString *path = [self bundlePathForModule:moduleId];
    if ([[NSFileManager defaultManager] fileExistsAtPath:path]) {
        NSError *error = nil;
        [[NSFileManager defaultManager] removeItemAtPath:path error:&error];
        if (error) {
            reject(@"BUNDLE_DELETE_ERROR", error.localizedDescription, error);
            return;
        }
    }
    resolve(@(YES));
}

RCT_EXPORT_METHOD(getBundlePath:(NSString *)moduleId
                  resolver:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    resolve([self bundlePathForModule:moduleId]);
}

// ── Manifest 操作 ────────────────────────────────────────────────────────────

RCT_EXPORT_METHOD(getManifest:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    NSString *path = [[self bundleDir] stringByAppendingPathComponent:@"manifest.json"];
    if (![[NSFileManager defaultManager] fileExistsAtPath:path]) {
        resolve(@"{}");
        return;
    }
    NSError *error = nil;
    NSString *content = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:&error];
    if (error) {
        reject(@"MANIFEST_READ_ERROR", error.localizedDescription, error);
        return;
    }
    resolve(content);
}

RCT_EXPORT_METHOD(writeManifest:(NSString *)manifestJson
                  resolver:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    NSString *path = [[self bundleDir] stringByAppendingPathComponent:@"manifest.json"];
    NSError *error = nil;
    [manifestJson writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:&error];
    if (error) {
        reject(@"MANIFEST_WRITE_ERROR", error.localizedDescription, error);
        return;
    }
    resolve(@(YES));
}

@end