//
//  TableViewController.swift
//  CheapEat
//
//  Created by Johnathon Moss on 14/01/2015.
//  Copyright (c) 2015 CheapEat. All rights reserved.
//

import UIKit
import CoreLocation

class TableViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, CLLocationManagerDelegate {

    @IBOutlet weak var tableView: UITableView!
    @IBOutlet weak var activityIndicator: UIActivityIndicatorView!
    @IBOutlet weak var noDealsFoundLabel: UILabel!
    @IBOutlet weak var activityBG: UIImageView!


    var deals:[Deal] = [Deal]()
    let model:DealModel = DealModel()
    var imageCache = [String : UIImage]()

    var lat:String = ""
    var lng:String = ""

    var locationManager = CLLocationManager()

    // Values for nextView

    var restaurantDictionarys = [NSDictionary]()
    var ids = [String]()
    var restaurantsName = [String]()
    var restaurantsAdd = [String]()
    var venueInfo = [String]()
    var resLats = [String]()
    var resLng = [String]()
    var resPhone = [String]()
    var i = 0

    override func viewDidLoad() {
        super.viewDidLoad()

        self.tableView.dataSource = self
        self.tableView.delegate = self
        // Do any additional setup after loading the view.

        // Set nav bar title (so back button says "Deals")
        self.navigationItem.title = "Deals"

        activityIndicator.hidden = false
        activityBG.hidden = false

        // Core Location

        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestWhenInUseAuthorization()
        locationManager.startUpdatingLocation()

        //add logo to nav bar
        let navBarLogo: UIImageView = UIImageView(frame: CGRectMake(0, 0, 120, 36))
        navBarLogo.image = UIImage(named: "logo")
        self.navigationItem.titleView = navBarLogo


        self.tableView.delegate = self
        self.tableView.dataSource = self

        //remove table view insets
        self.tableView.layoutMargins = UIEdgeInsetsZero
    }

    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

        self.performSegueWithIdentifier("Detail", sender: self)
    }

        override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

            if (segue.identifier == "Detail") {

                var viewController = segue.destinationViewController as VenueDetailViewController
                let indexPath = self.tableView.indexPathForSelectedRow()?.row
                println(indexPath)

            }
        }


    func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {


        var userLocation:CLLocation = locations[0] as CLLocation

        var latitude:String =  "-34.4232722"//"\(userLocation.coordinate.latitude)"
        var longitude:String = "150.8865837"//"\(userLocation.coordinate.longitude)"

//        var latitude:String =  "\(userLocation.coordinate.latitude)"
//        var longitude:String = "\(userLocation.coordinate.longitude)"

        locationManager.stopUpdatingLocation()


        self.lat = latitude
        self.lng = longitude

        println(self.lat)
        println(self.lng)



        // Get the deals from the deal model
        self.deals = getDeals()

        if self.deals.count > 0 {

        activityIndicator.stopAnimating()
        activityIndicator.hidden = true
        activityBG.hidden = true
        self.tableView.reloadData()

        }
        else {
            noDealsFoundLabel.hidden = false
            activityIndicator.stopAnimating()
            activityIndicator.hidden = true
            activityBG.hidden = true

        }
    }

    func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
        println(error)

        activityIndicator.stopAnimating()
        activityIndicator.hidden = true
        activityBG.hidden = true

        var alert = UIAlertController(title: "Location issue", message: "Sorry, we need to know your location to show you the nearest deals. Please turn on location services for CheapEat in settings.", preferredStyle: UIAlertControllerStyle.Alert)
        alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: nil))
        self.presentViewController(alert, animated: true, completion: nil)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

        return self.deals.count
    }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

        // try to reuse cell
        let cell:UITableViewCell = tableView.dequeueReusableCellWithIdentifier("DealCell") as UITableViewCell

        // get the deal image
        let currentImage = deals[indexPath.row].imageID
        let unwrappedImage = currentImage
        var image = self.imageCache[unwrappedImage]
        let imageUrl = NSURL(string: "http://staging.api.cheapeat.com.au/deals/\(unwrappedImage)/photo")
        //let imageData = NSData(contentsOfURL: imageUrl!)

        // access the elements using tag
        var dealImage:UIImageView = cell.viewWithTag(1) as UIImageView
        var title:UILabel = cell.viewWithTag(2) as UILabel
        var price:UILabel = cell.viewWithTag(3) as UILabel
        var location:UILabel = cell.viewWithTag(4) as UILabel
        var days:UILabel = cell.viewWithTag(5) as UILabel
        var time:UILabel = cell.viewWithTag(6) as UILabel
        var venue:UIButton = cell.viewWithTag(7) as UIButton

        // reset reused cell image to placeholder
        dealImage.image = UIImage(named: "placeholder")

        // async image
        if image == nil {

        let request: NSURLRequest = NSURLRequest(URL: imageUrl!)

        NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler: {(response: NSURLResponse!,data: NSData!,error: NSError!) -> Void in
            if error == nil {

                image = UIImage(data: data)

                self.imageCache[unwrappedImage] = image
                dispatch_async(dispatch_get_main_queue(), {
                    dealImage.image = image

                })
            }
            else {

            }
        })
        }

        else{
            dealImage.image = image
        }

        // set the cell properties
        let currentDealToDisplay:Deal = self.deals[indexPath.row]
        //dealImage.image = UIImage(data: imageData!)
        title.text = "  " + currentDealToDisplay.title + "  "
        price.text = "$" + currentDealToDisplay.price.stringByTrimmingCharactersInSet(NSCharacterSet.punctuationCharacterSet())

        /*

        var cleanedUpDays = currentDealToDisplay.days.stringByReplacingOccurrencesOfString("\"", withString: "", options: NSStringCompareOptions.LiteralSearch, range: nil)
        days.text = cleanedUpDays.stringByTrimmingCharactersInSet(NSCharacterSet.punctuationCharacterSet())

        var cleanedUpTime = currentDealToDisplay.time.stringByReplacingOccurrencesOfString("\"", withString: "", options: NSStringCompareOptions.LiteralSearch, range: nil)
        time.text = cleanedUpTime.stringByTrimmingCharactersInSet(NSCharacterSet.punctuationCharacterSet())

        */

        location.text = currentDealToDisplay.location
        venue.setTitle("\(currentDealToDisplay.location)", forState: UIControlState.Normal)

        venue.tag = indexPath.row

        // remove table view insets
        cell.layoutMargins = UIEdgeInsetsZero

        return cell

    }

    func getDeals() -> [Deal] {

        // Array of deal objects
        var deals:[Deal] = [Deal]()

        // Get Json array of dictionaries
        let jsonObjects:[NSDictionary] = self.getRemoteJsonFile()

        // Loop through each dictionary and assign values to our deal objs
        var index:Int
        self.ids = [String]()
        self.restaurantsName = [String]()
        self.restaurantsAdd = [String]()
        self.venueInfo = [String]()
        self.resLats = [String]()
        self.resLng = [String]()
        self.resPhone = [String]()
        for index = 0; index < jsonObjects.count; index++ {

            // Current JSON dict
            let jsonDictionary:NSDictionary = jsonObjects[index]

            self.restaurantDictionarys = jsonDictionary["restaurants"] as [NSDictionary]

            // Create a deal obj
            var q:Deal = Deal()

            // Assign the values of each key value pair to the deal object
            q.title = jsonDictionary["name"] as String
            q.price = jsonDictionary["price_data"] as String
            q.imageID = jsonDictionary["id"] as String
            q.location = restaurantDictionarys[0]["name"] as String
            q.latitude = restaurantDictionarys[0]["lat"] as String
            q.longitude = restaurantDictionarys[0]["lng"] as String
            q.days = jsonDictionary["availability_day"] as String
            q.time = jsonDictionary["availability_time"] as String
            /*q.answers = jsonDictionary["answers"] as [String]
            q.correctAnswerIndex = jsonDictionary["correctIndex"] as Int
            q.module = jsonDictionary["module"] as Int
            q.lesson = jsonDictionary["lesson"] as Int
            q.feedback = jsonDictionary["feedback"] as String*/

            for values in restaurantDictionarys{

                var id : String = restaurantDictionarys[self.i]["id"] as String
                var name : String = restaurantDictionarys[self.i]["name"] as String
                var address : String = restaurantDictionarys[self.i]["friendly_address"] as String
                if let venue = restaurantDictionarys[self.i]["description"] as? String{

                    self.venueInfo.append(venue)
                }else{

                    self.venueInfo.append("No Description")
                }

                if let phone = restaurantDictionarys[self.i]["phone"] as? String{

                    self.resPhone.append(phone)

                }else{

                    self.resPhone.append("Not Available")
                }

                var lat : String = restaurantDictionarys[self.i]["lat"] as String
                var lng : String = restaurantDictionarys[self.i]["lng"] as String
                self.ids.append(id)
                self.restaurantsName.append(name)
                self.restaurantsAdd.append(address)
                self.resLats.append(lat)
                self.resLng.append(lng)
            }

            // Add the question to the question array
            deals.append(q)
        }

        // Return list of question objects
        return deals

    }

    func getRemoteJsonFile() -> [NSDictionary] {

        // Create a new URL
        let remoteUrl:NSURL? = NSURL(string: "http://staging.api.cheapeat.com.au/search?lat=\(self.lat)&lng=\(self.lng)")

        let urlString:String = "\(remoteUrl)"
        println(urlString)

        // Check if it's nil
        if let actualRemoteUrl = remoteUrl {

            // Try to get the data
            let fileData:NSData? = NSData(contentsOfURL: actualRemoteUrl)

            // Check if it's nil
            if let actualFileData = fileData {

                // Parse out the dictionaries
                let arrayOfDictionaries:[NSDictionary]? = NSJSONSerialization.JSONObjectWithData(actualFileData, options: NSJSONReadingOptions.MutableContainers, error: nil) as [NSDictionary]?

                if let actualArrayOfDictionaries = arrayOfDictionaries {

                    // Successfully parsed out array of dictionaries
                    return actualArrayOfDictionaries
                }
            }

        }
        return [NSDictionary]()
    }
}