import UIKit

class ExistingLocationsViewController: UITableViewController {
    var oldRow = -1 // for state information
    var newRow = -1 // for state information
    var locationList: [LocationObject] = [
        LocationObject(name: "name-1", address: "addr-1", phone: "phone-1", latitude: 40.0, longitude: -80.1),
        LocationObject(name: "name-2", address: "addr-2", phone: "phone-2", latitude: 40.0, longitude: -80.1)
    ]

    override func viewDidLoad() {
        super.viewDidLoad()
        // provides buffer space at the top so that the contents do not run into the top-margin (not needed if first cell is [intnetionally] blank)
        self.tableView.contentInset = UIEdgeInsets(top: 20, left: 0, bottom: 0, right: 0)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 1 
               // QUESTION: I have two labels, but I consider it a single section - is that correct or should I be returning a value of '2' here?
               // If I make it '2', then the rows get duplicated (1, 2, 1, 2) and selecting row 2 does not automatically unselect row 1
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return locationList.count
    }
  
    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("resultCell", forIndexPath: indexPath) as! ExistingLocationTableViewCell
        let row  = indexPath.row
        let item = locationList[row]

        cell.nameLabel.text     = item.name
        cell.locationLabel.text = item.address

        let inval = cell.accessoryType.rawValue    //#=# For debugging
        let insel = cell.selected                  //#=# For debugging
        
        if (cell.accessoryType == .Checkmark) || (cell.accessoryType.hashValue == 0) {
            cell.accessoryType = .None
            cell.selected      = false
        }
        else {
            cell.accessoryType = .Checkmark
            cell.selected      = true
        }
        
        let outval = cell.accessoryType.rawValue //#=# For debugging
        let outsel = cell.selected               //#=# For debugging
        print("cellForRowAtIndexPath: (row = \(row))(oldRow = \(oldRow))(newRow = \(newRow))[selected: \(insel) => \(outsel)][actype: \(inval) => \(outval)]") //#=#

        return cell
    }
    
    override func tableView(tableView: UITableView, didDeselectRowAtIndexPath indexPath: NSIndexPath) {
        let cell = tableView.dequeueReusableCellWithIdentifier("resultCell", forIndexPath: indexPath) as! ExistingLocationTableViewCell

        let insel = cell.selected                //#=# For debugging
        let inval = cell.accessoryType.rawValue  //#=# For debugging
        print("### didDeselectRowAtIndexPath => reloadRowsAtIndexPaths")//#=#
        self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: .None)
        let outsel = cell.selected               //#=# For debugging
        let outval = cell.accessoryType.rawValue //#=# For debugging
        print("didDeselectRowAtIndexPath: (oldRow: \(oldRow))(newRow: \(newRow))[selected: (\(insel) => \(outsel))][accessory: (\(inval) => \(outval))")//#=#
    }

    override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        let cell = tableView.dequeueReusableCellWithIdentifier("resultCell", forIndexPath: indexPath) as! ExistingLocationTableViewCell

        newRow = indexPath.row
        let insel = cell.selected               //#=# For debugging
        let inval = cell.accessoryType.rawValue //#=# For debugging
        let inrow  = oldRow
        if newRow == oldRow  {
            print("### didSelectRowAtIndexPath => didDeselectRowAtIndexPath")//#=#
            //self.tableView(tableView, didDeselectRowAtIndexPath: indexPath) //NOTE: Calling this and doing the reload and setSelected there seemed to not work as desired
            self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: .None)
            cell.accessoryType = .None //
            oldRow = -1
        }
        else {
            if oldRow >= 0 {
                //# force deselection of old indexpath
                let oldIndexPath = NSIndexPath(forRow: oldRow, inSection: 1)
                self.tableView(tableView, didDeselectRowAtIndexPath: oldIndexPath)
            }
            print("### didSelectRowAtIndexPath => reloadRowsAtIndexPaths")//#=#
            self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: .None)
            cell.setSelected(true, animated: false) // Seems that this must be after call to reloadRowsAtIndexPaths
            oldRow = indexPath.row
        }
        let outsel = cell.selected                //#=# For debugging
        let outval = cell.accessoryType.rawValue  //#=# For debugging
        let outrow = oldRow                       //#=# For debugging
        print("didSelectRowAtIndexPath: (oldRow: (\(inrow) => \(outrow)))(newRow = \(newRow))[selected: (\(insel) => \(outsel)][accessory: (\(inval) => \(outval))")//#=#
    }

}