//
//  CLDOcrParagraphResult.swift
//
//  Copyright (c) 2016 Cloudinary (http://cloudinary.com)
//
//  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 Foundation

@objcMembers open class CLDOcrParagraphResult: CLDBaseResult {
    
    open var boundingBox: CLDOcrBoundindBlockResult? {
        guard let boundingBox = getParam(.boundingBox) as? [String : AnyObject]  else { return nil }
        
        return CLDOcrBoundindBlockResult(json: boundingBox)
    }
    open var property: CLDOcrPropertyResult? {
        guard let property = getParam(.property) as? [String : AnyObject] else { return nil }
        
        return CLDOcrPropertyResult(json: property)
    }
    open var words: [CLDOcrWordResult]? {
        guard let words = getParam(.words) as? [[String : AnyObject]] else { return nil }
        
        return words.compactMap({ CLDOcrWordResult(json: $0) })
    }
    
    // MARK: - Private Helpers
    fileprivate func getParam(_ param: CLDOcrParagraphResultKey) -> AnyObject? {
        return resultJson[String(describing: param)]
    }
    
    fileprivate enum CLDOcrParagraphResultKey: CustomStringConvertible {
        case boundingBox, property, words
        
        var description: String {
            switch self {
            case .boundingBox: return "boundingBox"
            case .property   : return "property"
            case .words      : return "words"
            }
        }
    }
}
