import UIKit
import AFNetworking

class NetworkTools: AFHTTPSessionManager {

//    static let WB_App_Key = "861417731"
//    static let WB_App_Secret = "891b8e2950f0daaca048c9fc6c46a535"
//    static let WB_Redirect_URI = "http://www.520it.com"
    
    
    
    static let WB_App_Key = "2507721026"
    static let WB_App_Secret = "dd92b400310fa5eb9e2fe5bc9c1caa6c"
    static let WB_Redirect_URI = "http://my.oschina.net/u/2333251"
    
    
    
    
    static let shareInstance: NetworkTools = {
        
        let url = NSURL(string: "https://api.weibo.com/")!
        let configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
        let instance = NetworkTools(baseURL: url, sessionConfiguration: configuration)
        
        instance.responseSerializer.acceptableContentTypes = NSSet(objects: "application/json", "text/json", "text/javascript", "text/plain") as Set<NSObject>
    
        
        return instance
    }()
    
    // MARK: - 外部控制器方法
    /**
    获取授权信息
    
    - parameter code:      已经授权的RequestToken
    - parameter finfished: 回调
    - parameter error:     错误信息
    */
    func loadAccessToken(code: String, finfished: (objc: [String: AnyObject]?, error: NSError?)->())
    {
        let path = "oauth2/access_token"
        
        // 1.拼接参数
        let parameters = ["client_id": NetworkTools.WB_App_Key, "client_secret": NetworkTools.WB_App_Secret, "grant_type": "authorization_code", "code": code, "redirect_uri": NetworkTools.WB_Redirect_URI]
        
        // 2.访问网络
        POST(path, parameters: parameters, success: { (_, JSON) -> Void in
            
            guard let dict = JSON as? [String: AnyObject] else
            {
                finfished(objc: nil, error: NSError(domain: "com.520it.lnj", code: 998, userInfo: ["message": "获取到的授权信息是nil"]))
                return
            }
            finfished(objc: dict, error: nil)
            }) { (_, error) -> Void in
                finfished(objc: nil, error: error)
        }
    }
    
    /**
    获取用户信息
    
    - parameter userAccount: 授权模型
    - parameter finfished:   回调
    - parameter error:       错误信息
    */
    func loadUserInfo(userAccount: UserAccountModel, finfished: (objc: [String: AnyObject]?, error: NSError?)->())
    {
        let path = "2/users/show.json"
        
        // 1.封装参数
        let parameters = ["access_token": userAccount.access_token!, "uid": userAccount.uid!]
        
        // 2.发送请求
        NetworkTools.shareInstance.GET(path, parameters: parameters, success: { (_, JSON) -> Void in
            
            // 2.1进行安全校验
            guard let dict = JSON as? [String: AnyObject] else
            {
                 finfished(objc: nil, error: NSError(domain: "com.520it.lnj", code: 999, userInfo: ["message": "获取到的用户信息是nil"]))
                return
            }

            finfished(objc: dict, error: nil)
            }) { (_, error) -> Void in
                finfished(objc: nil, error: error)
        }
    }
    
    /**
    获取微博数据
    - parameter since_id 用于下拉刷新, 返回比指定微博ID大的微博
    - parameter finfished: 回调
    - parameter error:     错误信息
    */
    func loadStauts(since_id: String, max_id: String, finfished: (objc: [[String: AnyObject]]?, error: NSError?)->())
    {
        let path = "2/statuses/home_timeline.json"
        
        /*
        since_id: 返回比指定的since_id大的微博(获取最新的微博数据)
        max_id: 返回小于等于max_id的微博(获取以前的微博数据)
        
        特点:  如果since_id或者max_id等于0, 那么无效
        */
        // 1.封装请求参数
        let parameters = ["access_token": UserAccountViewModel.shareInstance.userAccountModel!.access_token!, "since_id": since_id, "max_id": max_id]
        
        // 2.发送请求
        GET(path, parameters: parameters, success: { (_, JSON) -> Void in
            /*
            服务器返回的数据格式:
            字典
            |--statuses(key) 字典数组
                |-- 字典(一条微博数据)
            */
            guard let arr = JSON["statuses"] as? [[String: AnyObject]] else
            {
                finfished(objc: nil, error: NSError(domain: "com.520it.lnj", code: 997, userInfo: ["message": "获取微博数组出错"]))
                return
            }
            
            // 返回数据
            finfished(objc: arr, error: nil)
            }) { (_, error) -> Void in
                finfished(objc: nil, error: error)
        }
    }
    
    /**
    发送微博
    
    - parameter status:    微博正文
    - parameter image:     微博配图
    - parameter finfished: 回调
    - parameter error:     失败信息
    */
    func postStatus(status: String, image: UIImage?, finfished: (objc: [String: AnyObject]?, error: NSError?)->())
    {
        var path = "2/statuses/"
        // 1.封装请求参数
        let parameters = ["access_token": UserAccountViewModel.shareInstance.userAccountModel!.access_token!, "status": status]
        
        if image == nil
        {
            // 发送微博微博
            path += "update.json"
            
            // 2.发送请求
            POST(path, parameters: parameters, success: { (_, JSON) -> Void in
                guard let dict = JSON as? [String: AnyObject] else
                {
                    finfished(objc: nil, error: NSError(domain: "com.520it.lnj", code: 250, userInfo: ["message": "服务器没有返回已经发送的微博"]))
                    return
                }
                finfished(objc: dict, error: nil)
                
                }) { (_, error) -> Void in
                    finfished(objc: nil, error: error)
            }
        }else
        {
            // 发送图片微博
            path += "upload.json"
            // 2.发送请求
            POST(path, parameters: parameters, constructingBodyWithBlock: { (formData) -> Void in
                
                let data = UIImagePNGRepresentation(image!)!
                formData.appendPartWithFileData(data, name:"pic",fileName:"abc123", mimeType:"application/octet-stream")
                }, success: { (_, JSON) -> Void in
                    guard let dict = JSON as? [String: AnyObject] else
                    {
                        finfished(objc: nil, error: NSError(domain: "com.520it.lnj", code: 250, userInfo: ["message": "服务器没有返回已经发送的微博"]))
                        return
                    }
                    finfished(objc: dict, error: nil)
                }) { (_, error) -> Void in
                    finfished(objc: nil, error: error)
            }
        }
    }
}