import Foundation
import TelegramCore
import SyncCore
import Postbox
import MediaResources
import PassportUI
import OpenInExternalAppUI
import MusicAlbumArtResources
import LocalMediaResources
import LocationResources
import ChatInterfaceState
import WallpaperResources
import AppBundle
import SwiftSignalKit

public let telegramAccountAuxiliaryMethods = AccountAuxiliaryMethods(updatePeerChatInputState: { interfaceState, inputState -> PeerChatInterfaceState? in
    if interfaceState == nil {
        return ChatInterfaceState().withUpdatedSynchronizeableInputState(inputState)
    } else if let interfaceState = interfaceState as? ChatInterfaceState {
        return interfaceState.withUpdatedSynchronizeableInputState(inputState)
    } else {
        return interfaceState
    }
}, fetchResource: { account, resource, ranges, _ in
    if let resource = resource as? VideoLibraryMediaResource {
        return fetchVideoLibraryMediaResource(account: account, resource: resource)
    } else if let resource = resource as? LocalFileVideoMediaResource {
        return fetchLocalFileVideoMediaResource(account: account, resource: resource)
    } else if let resource = resource as? LocalFileGifMediaResource {
        return fetchLocalFileGifMediaResource(resource: resource)
    } else if let photoLibraryResource = resource as? PhotoLibraryMediaResource {
        return fetchPhotoLibraryResource(localIdentifier: photoLibraryResource.localIdentifier)
    } else if let resource = resource as? ExternalMusicAlbumArtResource {
        return fetchExternalMusicAlbumArtResource(account: account, resource: resource)
    } else if let resource = resource as? ICloudFileResource {
        return fetchICloudFileResource(resource: resource)
    } else if let resource = resource as? SecureIdLocalImageResource {
        return fetchSecureIdLocalImageResource(postbox: account.postbox, resource: resource)
    } else if let resource = resource as? OpenInAppIconResource {
        return fetchOpenInAppIconResource(resource: resource)
    } else if let resource = resource as? EmojiSpriteResource {
        return fetchEmojiSpriteResource(account: account, resource: resource)
    } else if let resource = resource as? VenueIconResource {
        return fetchVenueIconResource(account: account, resource: resource)
    } else if let wallpaperResource = resource as? WallpaperDataResource {
        let builtinWallpapers: [String] = [
            "fqv01SQemVIBAAAApND8LDRUhRU"
        ]
        if builtinWallpapers.contains(wallpaperResource.slug) {
            if let url = getAppBundle().url(forResource: wallpaperResource.slug, withExtension: "tgv") {
                return Signal { subscriber in
                    subscriber.putNext(.reset)
                    if let data = try? Data(contentsOf: url, options: .mappedRead) {
                        subscriber.putNext(.dataPart(resourceOffset: 0, data: data, range: 0 ..< data.count, complete: true))
                    }

                    return EmptyDisposable
                }
            } else {
                return nil
            }
        }
        return nil
    }
    return nil
}, fetchResourceMediaReferenceHash: { resource in
    if let resource = resource as? VideoLibraryMediaResource {
        return fetchVideoLibraryMediaResourceHash(resource: resource)
    }
    return .single(nil)
}, prepareSecretThumbnailData: { data in
    return prepareSecretThumbnailData(data).flatMap { size, data in
        return (PixelDimensions(size), data)
    }
})