import Foundation
#if os(macOS)
    import PostboxMac
    import SwiftSignalKitMac
#else
    import Postbox
    import SwiftSignalKit
#endif

public func applyMaxReadIndexInteractively(postbox: Postbox, network: Network, index: MessageIndex) -> Signal<Void, NoError> {
    return postbox.modify { modifier -> Void in
        let messageIds = modifier.applyInteractiveReadMaxIndex(index)
        if index.id.peerId.namespace == Namespaces.Peer.SecretChat {
            let timestamp = Int32(CFAbsoluteTimeGetCurrent() + NSTimeIntervalSince1970)
            for id in messageIds {
                if let message = modifier.getMessage(id) {
                    for attribute in message.attributes {
                        if let attribute = attribute as? AutoremoveTimeoutMessageAttribute {
                            if attribute.countdownBeginTime == nil && !message.containsSecretMedia {
                                modifier.updateMessage(message.id, update: { currentMessage in
                                    var storeForwardInfo: StoreMessageForwardInfo?
                                    if let forwardInfo = currentMessage.forwardInfo {
                                        storeForwardInfo = StoreMessageForwardInfo(authorId: forwardInfo.author.id, sourceId: forwardInfo.source?.id, sourceMessageId: forwardInfo.sourceMessageId, date: forwardInfo.date)
                                    }
                                    let updatedAttributes = currentMessage.attributes.map({ currentAttribute -> MessageAttribute in
                                        if let currentAttribute = currentAttribute as? AutoremoveTimeoutMessageAttribute {
                                            return AutoremoveTimeoutMessageAttribute(timeout: currentAttribute.timeout, countdownBeginTime: timestamp)
                                        } else {
                                            return currentAttribute
                                        }
                                    })
                                    return .update(StoreMessage(id: currentMessage.id, globallyUniqueId: currentMessage.globallyUniqueId, timestamp: currentMessage.timestamp, flags: StoreMessageFlags(currentMessage.flags), tags: currentMessage.tags, forwardInfo: storeForwardInfo, authorId: currentMessage.author?.id, text: currentMessage.text, attributes: updatedAttributes, media: currentMessage.media))
                                })
                                modifier.addTimestampBasedMessageAttribute(tag: 0, timestamp: timestamp + attribute.timeout, messageId: id)
                            }
                            break
                        }
                    }
                }
            }
        }
    }
}

func applyOutgoingReadMaxIndex(modifier: Modifier, index: MessageIndex, beginAt timestamp: Int32) {
    let messageIds = modifier.applyOutgoingReadMaxIndex(index)
    if index.id.peerId.namespace == Namespaces.Peer.SecretChat {
        for id in messageIds {
            if let message = modifier.getMessage(id), !message.flags.contains(.Incoming) {
                for attribute in message.attributes {
                    if let attribute = attribute as? AutoremoveTimeoutMessageAttribute {
                        if attribute.countdownBeginTime == nil && !message.containsSecretMedia {
                            modifier.updateMessage(message.id, update: { currentMessage in
                                var storeForwardInfo: StoreMessageForwardInfo?
                                if let forwardInfo = currentMessage.forwardInfo {
                                    storeForwardInfo = StoreMessageForwardInfo(authorId: forwardInfo.author.id, sourceId: forwardInfo.source?.id, sourceMessageId: forwardInfo.sourceMessageId, date: forwardInfo.date)
                                }
                                let updatedAttributes = currentMessage.attributes.map({ currentAttribute -> MessageAttribute in
                                    if let currentAttribute = currentAttribute as? AutoremoveTimeoutMessageAttribute {
                                        return AutoremoveTimeoutMessageAttribute(timeout: currentAttribute.timeout, countdownBeginTime: timestamp)
                                    } else {
                                        return currentAttribute
                                    }
                                })
                                return .update(StoreMessage(id: currentMessage.id, globallyUniqueId: currentMessage.globallyUniqueId, timestamp: currentMessage.timestamp, flags: StoreMessageFlags(currentMessage.flags), tags: currentMessage.tags, forwardInfo: storeForwardInfo, authorId: currentMessage.author?.id, text: currentMessage.text, attributes: updatedAttributes, media: currentMessage.media))
                            })
                            modifier.addTimestampBasedMessageAttribute(tag: 0, timestamp: timestamp + attribute.timeout, messageId: id)
                        }
                        break
                    }
                }
            }
        }
    }
}