/*****************************************************************************
 * VLCOneDriveObject.h
 * VLC for iOS
 *****************************************************************************
 * Copyright (c) 2015 VideoLAN. All rights reserved.
 * $Id$
 *
 * Authors: Felix Paul Kühne <fkuehne # videolan.org>
 *
 * Refer to the COPYING file of the official project for license.
 *****************************************************************************/

#import "VLCOneDriveObject.h"
#import "VLCHTTPFileDownloader.h"

@interface VLCOneDriveObject () <VLCHTTPFileDownloader>
{
    VLCHTTPFileDownloader *_fileDownloader;
}

@end

@implementation VLCOneDriveObject

#pragma mark properties

- (BOOL)isFolder
{
    return [self.type isEqual:@"folder"] || [self.type isEqual:@"album"];
}

- (BOOL)isVideo
{
    return [self.type isEqual:@"video"];
}

- (BOOL)isAudio
{
    return [self.type isEqual:@"audio"];
}

- (NSString *)filesPath
{
    return [self.objectId stringByAppendingString:@"/files"];
}

- (BOOL)hasFullFolderTree
{
    BOOL hasFullTree = YES;

    if (self.folders != nil) {
        NSUInteger count = self.folders.count;

        for (NSUInteger x = 0; x < count; x++) {
            VLCOneDriveObject *folder = self.folders[x];
            if (!folder.hasFullFolderTree) {
                hasFullTree = NO;
                break;
            }
        }
    } else
        hasFullTree = NO;

    return hasFullTree;
}

#pragma mark - actions

- (void)loadFolderContent
{
    if (!self.isFolder) {
        APLog(@"%@ is no folder, can't load content", self.objectId);
        return;
    }

    if (self.folders == nil) {
        [self.liveClient getWithPath:self.filesPath
                            delegate:self
                           userState:@"load-folder-content"];
    } else {
        NSUInteger count = self.folders.count;

        for (NSUInteger x = 0; x < count; x++) {
            VLCOneDriveObject *folder = self.folders[x];
            if (!folder.hasFullFolderTree) {
                [folder loadFolderContent];
                return;
            }
        }

        [self.delegate fullFolderTreeLoaded:self];
    }
}

#pragma mark - live operations

- (void)liveOperationSucceeded:(LiveDownloadOperation *)operation
{
    NSString *userState = operation.userState;

    if ([userState isEqualToString:@"load-folder-content"]) {
        NSMutableArray *subFolders = [[NSMutableArray alloc] init];
        NSMutableArray *folderFiles = [[NSMutableArray alloc] init];
        NSMutableArray *items = [[NSMutableArray alloc] init];
        NSArray *rawFolderObjects = operation.result[@"data"];
        BOOL hasSubFolders = NO;
        NSUInteger count = rawFolderObjects.count;

        for (NSUInteger x = 0; x < count; x++) {
            NSDictionary *rawObject = rawFolderObjects[x];
            VLCOneDriveObject *oneDriveObject = [[VLCOneDriveObject alloc] init];

            oneDriveObject.parent = self;
            oneDriveObject.objectId = rawObject[@"id"];
            oneDriveObject.name = rawObject[@"name"];
            oneDriveObject.type = rawObject[@"type"];

            oneDriveObject.liveClient = self.liveClient;

            if (oneDriveObject.isFolder) {
                hasSubFolders = YES;
                [subFolders addObject:oneDriveObject];
            } else {
                oneDriveObject.size = rawObject[@"size"];
                oneDriveObject.thumbnailURL = rawObject[@"picture"];
                oneDriveObject.downloadPath = rawObject[@"source"];
                oneDriveObject.duration = rawObject[@"duration"];
                [folderFiles addObject:oneDriveObject];
            }
            [items addObject:oneDriveObject];
        }

        self.folders = subFolders;
        self.files = folderFiles;
        self.items = items;
        [self.delegate folderContentLoaded:self];
    }
}

- (void)liveOperationFailed:(NSError *)error operation:(LiveDownloadOperation *)operation
{
    NSString *userState = operation.userState;

    APLog(@"liveOperationFailed %@ (%@)", userState, error);

    if ([userState isEqualToString:@"load-folder-content"])
        [self.delegate folderContentLoadingFailed:error sender:self];
}

#pragma mark - delegation

- (void)folderContentLoaded:(VLCOneDriveObject *)sender
{
}

- (void)folderContentLoadingFailed:(NSError *)error sender:(VLCOneDriveObject *)sender
{
    if (self.delegate)
        [self.delegate folderContentLoadingFailed:error sender:self];
}

- (void)fullFolderTreeLoaded:(VLCOneDriveObject *)sender
{
    [self loadFolderContent];
}

#pragma mark - file downloading

- (void)saveObjectToDocuments
{
    _fileDownloader = [[VLCHTTPFileDownloader alloc] init];
    _fileDownloader.delegate = self;
    [_fileDownloader downloadFileFromURLwithFileName:[NSURL URLWithString:self.downloadPath] fileNameOfMedia:self.name];
}

- (void)downloadStarted
{
    if ([self.downloadDelegate respondsToSelector:@selector(downloadStarted:)])
        [self.downloadDelegate downloadStarted:self];
}

- (void)downloadEnded
{
    if ([self.downloadDelegate respondsToSelector:@selector(downloadEnded:)])
        [self.downloadDelegate downloadEnded:self];
}

- (void)downloadFailedWithErrorDescription:(NSString *)description
{
    APLog(@"download failed (%@)", description);
}

- (void)progressUpdatedTo:(CGFloat)percentage receivedDataSize:(CGFloat)receivedDataSize expectedDownloadSize:(CGFloat)expectedDownloadSize
{
    if ([self.downloadDelegate respondsToSelector:@selector(progressUpdated:)])
        [self.downloadDelegate progressUpdated:percentage];
    if ([self.downloadDelegate respondsToSelector:@selector(calculateRemainingTime:expectedDownloadSize:)])
        [self.downloadDelegate calculateRemainingTime:receivedDataSize expectedDownloadSize:expectedDownloadSize];
}

@end