SimDirs-mirror/SimDirs/Model/SimPlatform.swift

//
//  SimPlatform.swift
//  SimDirs
//
//  Created by Casey Fleser on 4/30/16.
//  Copyright © 2016 Quiet Spark. All rights reserved.
//

import Foundation

class SimPlatform: OutlineProvider, NSCopying {
    let name			: String
    var osVersions		= [SimOSVersion]()
    
    class func scan() -> [SimPlatform] {
        let fileMgr		= FileManager.default
        var platforms	= [SimPlatform]()
        
        if let libraryURL = fileMgr.urls(for: .libraryDirectory, in: .userDomainMask).first {
            let deviceURL = libraryURL.appendingPathComponent("Developer/CoreSimulator/Devices")
            
            if let dirEnumerator = fileMgr.enumerator(at: deviceURL, includingPropertiesForKeys: nil, options: [ .skipsSubdirectoryDescendants, .skipsHiddenFiles ], errorHandler: nil) {
                let dirURLs = dirEnumerator.allObjects.compactMap { $0 as? URL }
                
                for baseURL in dirURLs {
                    let deviceURL			= baseURL.appendingPathComponent("device.plist")
                    guard let deviceInfo	= PropertyListSerialization.propertyListWithURL(deviceURL) else { continue }
                    guard let runtime		= deviceInfo["runtime"] as? String else { continue }
                    let runtimeComponents	= runtime.replacingOccurrences(of: "com.apple.CoreSimulator.SimRuntime.", with: "").components(separatedBy: "-")
                    
                    if let platformName = runtimeComponents.first {
                        let platform	= platforms.match({ $0.name == platformName }, orMake: { SimPlatform(runtimeComponents: runtimeComponents) })
                        
                        platform.updateWith(runtimeComponents, deviceInfo: deviceInfo, baseURL: baseURL)
                    }
                }
            }
        }
        
        for platform in platforms {
            platform.completeScan()
        }
        
        return platforms.sorted { $0.name < $1.name }
    }
    
    init(runtimeComponents: [String]) {
        self.name = runtimeComponents[0]
    }

    func copy(with zone: NSZone? = nil) -> Any {
        let copy = SimPlatform(runtimeComponents: [self.name])
        copy.osVersions = self.osVersions
        return copy
    }
    
    func completeScan() {
        for osVersion in self.osVersions {
            osVersion.completeScan(self.name)
        }
        self.osVersions.sort { $0.name > $1.name }
    }
    
    func updateWith(_ runtimeComponents: [String], deviceInfo: [String : AnyObject], baseURL: URL) {
        let versionID	= "\(runtimeComponents[safe: 1] ?? "0").\(runtimeComponents[safe: 2] ?? "0")"
        let osVersion	= self.osVersions.match({ $0.name == versionID }, orMake: { SimOSVersion(name: versionID) })
        
        osVersion.updateWithDeviceInfo(deviceInfo, baseURL: baseURL)
    }
    
    // MARK: - OutlineProvider -
    
    var outlineTitle	: String { return self.name }
    var outlineImage	: NSImage? { return nil }
    var childCount		: Int { return self.osVersions.count }
    
    func childAtIndex(_ index: Int) -> OutlineProvider? {
        return self.osVersions[index]
    }
}