//
//    Copyright (c) 2015 Max Sokolov https://twitter.com/max_sokolov
//
//    Permission is hereby granted, free of charge, to any person obtaining a copy of
//    this software and associated documentation files (the "Software"), to deal in
//    the Software without restriction, including without limitation the rights to
//    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
//    the Software, and to permit persons to whom the Software is furnished to do so,
//    subject to the following conditions:
//
//    The above copyright notice and this permission notice shall be included in all
//    copies or substantial portions of the Software.
//
//    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
//    FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
//    COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
//    IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
//    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

import UIKit

open class TableRow<CellType: ConfigurableCell>: Row where CellType: UITableViewCell {
    
    open let item: CellType.T
    private lazy var actions = [String: [RowAction]]()
    private(set) open var editingActions: [UITableViewRowAction]?
    
    open var hashValue: Int {
        return ObjectIdentifier(self).hashValue
    }
    
    open var reuseIdentifier: String {
        return CellType.reuseIdentifier
    }
    
    open var estimatedHeight: CGFloat? {
        return CellType.estimatedHeight
    }
    
    open var defaultHeight: CGFloat? {
        return CellType.defaultHeight
    }
    
    open var cellType: AnyClass {
        return CellType.self
    }
    
    public init(item: CellType.T, actions: [TableRowAction<CellType>]? = nil, editingActions: [UITableViewRowAction]? = nil) {
        
        self.item = item
        self.editingActions = editingActions
        actions?.forEach { on($0) }
    }
    
    // MARK: - RowConfigurable -
    
    open func configure(_ cell: UITableViewCell) {
        
        (cell as? CellType)?.configure(with: item)
    }
    
    // MARK: - RowActionable -
    
    open func invoke(action: TableRowActionType, cell: UITableViewCell?, path: IndexPath) -> Any? {

        return actions[action.key]?.flatMap({ $0.invokeActionOn(cell: cell, item: item, path: path) }).last
    }
    
    open func has(action: TableRowActionType) -> Bool {
        
        return actions[action.key] != nil
    }
    
    open func isEditingAllowed(forIndexPath indexPath: IndexPath) -> Bool {
        
        if actions[TableRowActionType.canEdit.key] != nil {
            return invoke(action: .canEdit, cell: nil, path: indexPath) as? Bool ?? false
        }
        return editingActions?.isEmpty == false || actions[TableRowActionType.clickDelete.key] != nil
    }
    
    // MARK: - actions -
    
    @discardableResult
    open func on(_ action: TableRowAction<CellType>) -> Self {
        
        if actions[action.type.key] == nil {
            actions[action.type.key] = [RowAction]()
        }
        actions[action.type.key]?.append(action)

        return self
    }

    @discardableResult
    open func on<T>(_ type: TableRowActionType, handler: @escaping (_ data: TableRowActionData<CellType>) -> T) -> Self {
        
        return on(TableRowAction<CellType>(type, handler: handler))
    }
    
    open func removeAllActions() {
        
        actions.removeAll()
    }
    
    open func removeAction(forActionId actionId: String) {

        for (key, value) in actions {
            if let actionIndex = value.index(where: { $0.id == actionId }) {
                actions[key]?.remove(at: actionIndex)
            }
        }
    }
    
    // MARK: - deprecated actions -
    
    @available(*, deprecated, message: "Use 'on' method instead")
    @discardableResult
    open func action(_ action: TableRowAction<CellType>) -> Self {

        return on(action)
    }
    
    @available(*, deprecated, message: "Use 'on' method instead")
    @discardableResult
    open func action<T>(_ type: TableRowActionType, handler: @escaping (_ data: TableRowActionData<CellType>) -> T) -> Self {
        
        return on(TableRowAction<CellType>(type, handler: handler))
    }
}