ViewController.swift

ViewController.swift

//
//  ViewController.swift

import UIKit
import Alamofire
import Realm

class QiitaTag: RLMObject {
    dynamic var id = ""
    dynamic var iconUrl = ""
    dynamic var followersCount = 0
    dynamic var itemsCount = 0
    
    override class func primaryKey() -> String {
        return "id"
    }
}

class ViewController: UIViewController {

    func donwload()
    {
        let d = Downloader(path: "/tmp/qiitags")
        d.download(60, endpoint: 100)
    }
    
    func addObjects()
    {
        let realm = RLMRealm.defaultRealm()
        realm.transactionWithBlock { () -> Void in
            for i in 1...100 {
                let path = "/tmp/qiitags/\(i).json"
                if let data = NSData(contentsOfFile: path)? {
                    let tags = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.AllowFragments, error: nil) as [[String: AnyObject]]
                    tags.map({(tag) -> Void in
                        let qtag = QiitaTag()
                        if let id = tag["id"] as? String {
                            qtag.id = id
                        }
                        if let iconUrl = tag["icon_url"] as? String {
                            qtag.iconUrl = iconUrl
                        }
                        if let itemsCount = tag["items_count"] as? Int {
                            qtag.itemsCount = itemsCount
                        }
                        if let followersCount = tag["followers_count"] as? Int {
                            qtag.followersCount = followersCount
                        }
                        realm.addOrUpdateObject(qtag)
                    })
                } else {
                    break
                }
            }
        }
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
//        self.donwload()
//        return

        let realm = RLMRealm.defaultRealm()
        let all = QiitaTag.allObjects()
        for i in 0..<all.count {
            if let t = all[i] as? QiitaTag {
                println(t.id)
            }
        }
        println("\(all.count) objects")
    }
}

struct Downloader {
    var path: String
    
    init(path: String){
        self.path = path
    }
    
    func download(start: Int, endpoint: Int) -> Void {
        if start > endpoint {
            return
        }
        
        let p = String(start)
        Alamofire
            .request(.GET, "https://qiita.com/api/v2/tags", parameters: ["page": p])
            .response { (request, response, data, error) in
                assert(error == nil)
                let json = NSString(data: data as NSData, encoding: NSUTF8StringEncoding)
                let path = "\(self.path)/\(p).json"
                let ret = json?.writeToFile(path, atomically: true, encoding: NSUTF8StringEncoding, error: nil) as Bool!
                assert(ret)
                NSThread.sleepForTimeInterval(1)
                self.download(start+1, endpoint: endpoint)
        }
    }
}