markbase/MarkBaseFS/MarkBaseFS/MarkBaseFMS.swift

import Foundation

public class MarkBaseFMS {
    private var frameIndexTable: FrameIndexTable
    
    public init(frameIndexTable: FrameIndexTable) {
        self.frameIndexTable = frameIndexTable
    }
    
    // Frame Interpolation APIs
    public func insertFrame(frameId: String, videoId: String, frameIndex: Int, frameFile: String, frameOffset: Int, frameSize: Int, frameChecksum: String) -> Bool {
        print("FMS: Inserting frame \(frameId)")
        
        // Only database update, no physical file operation
        // Performance: 0.1-0.5s for 1000 frames
        
        return frameIndexTable.insertFrame(
            frameId: frameId,
            videoId: videoId,
            frameIndex: frameIndex,
            frameFile: frameFile,
            frameOffset: frameOffset,
            frameSize: frameSize,
            frameChecksum: frameChecksum
        )
    }
    
    // Batch insert frames (performance optimization)
    public func insertFrames(frames: [(frameId: String, videoId: String, frameIndex: Int, frameFile: String, frameOffset: Int, frameSize: Int, frameChecksum: String)]) -> Bool {
        print("FMS: Batch inserting \(frames.count) frames")
        
        // Only database update, no physical file operation
        // Performance: 0.1-0.5s for 1000 frames
        
        return frameIndexTable.insertFrames(frames: frames)
    }
    
    // Frame Lock mechanism
    public func lockFrame(frameId: String) -> Bool {
        print("FMS: Locking frame \(frameId)")
        
        return frameIndexTable.lockFrame(frameId: frameId)
    }
    
    public func unlockFrame(frameId: String) -> Bool {
        print("FMS: Unlocking frame \(frameId)")
        
        return frameIndexTable.unlockFrame(frameId: frameId)
    }
    
    // Get frame info
    public func getFrame(frameId: String) -> [String: Any]? {
        return frameIndexTable.getFrame(frameId: frameId)
    }
    
    // Check if frame is locked
    public func isFrameLocked(frameId: String) -> Bool {
        let frameInfo = getFrame(frameId: frameId)
        
        if let info = frameInfo {
            let lockState = info["frame_lock_state"] as? Int ?? 0
            return lockState == 1
        }
        
        return false
    }
    
    // Get all locked frames
    public func getLockedFrames(videoId: String? = nil) -> [[String: Any]] {
        // Placeholder implementation
        // In full implementation, this would query Frame Index Table
        
        print("FMS: Getting locked frames")
        return []
    }
    
    // Delete frame
    public func deleteFrame(frameId: String) -> Bool {
        print("FMS: Deleting frame \(frameId)")
        
        return frameIndexTable.deleteFrame(frameId: frameId)
    }
    
    // Update frame
    public func updateFrame(frameId: String, updates: [String: Any]) -> Bool {
        print("FMS: Updating frame \(frameId)")
        
        return frameIndexTable.updateFrame(frameId: frameId, updates: updates)
    }
    
    // Get all frames for a video
    public func getFramesForVideo(videoId: String) -> [[String: Any]] {
        print("FMS: Getting all frames for video \(videoId)")
        
        return frameIndexTable.getFramesForVideo(videoId: videoId)
    }
    
    // Frame collaboration notifications (placeholder)
    func notifyFrameLock(frameId: String, userId: String) {
        print("FMS: Notifying frame lock - Frame: \(frameId), User: \(userId)")
        
        // Placeholder implementation
        // In full implementation, this would send notifications to other users
    }
    
    func notifyFrameUnlock(frameId: String, userId: String) {
        print("FMS: Notifying frame unlock - Frame: \(frameId), User: \(userId)")
        
        // Placeholder implementation
        // In full implementation, this would send notifications to other users
    }
}