mas/mas-cli/Commands/Search.swift

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//
// Search.swift
// mas-cli
//
// Created by Michael Schneider on 4/14/16.
// Copyright © 2016 Andrew Naylor. All rights reserved.
//
struct ResultKeys {
static let ResultCount = "resultCount"
static let Results = "results"
static let TrackName = "trackName"
static let TrackId = "trackId"
}
struct SearchCommand: CommandType {
typealias Options = SearchOptions
let verb = "search"
let function = "Search for apps from the Mac App Store"
func run(options: Options) -> Result<(), MASError> {
guard let searchURLString = searchURLString(options.appName),
let searchJson = NSURLSession.requestSynchronousJSONWithURLString(searchURLString) as? [String: AnyObject] else {
return .Failure(MASError(code:.SearchError))
}
guard let resultCount = searchJson[ResultKeys.ResultCount] as? Int where resultCount > 0,
let results = searchJson[ResultKeys.Results] as? [[String: AnyObject]] else {
print("No results found")
return .Failure(MASError(code:.NoSearchResultsFound))
}
for result in results {
if let appName = result[ResultKeys.TrackName] as? String,
appId = result[ResultKeys.TrackId] as? Int {
print("\(String(appId)) \(appName)")
}
}
return .Success(())
}
func searchURLString(appName: String) -> String? {
if let urlEncodedAppName = appName.URLEncodedString() {
return "https://itunes.apple.com/search?entity=macSoftware&term=\(urlEncodedAppName)&attribute=allTrackTerm"
}
return nil
}
}
struct SearchOptions: OptionsType {
let appName: String
static func create(appName: String) -> SearchOptions {
return SearchOptions(appName: appName)
}
static func evaluate(m: CommandMode) -> Result<SearchOptions, CommandantError<MASError>> {
return create
<*> m <| Argument(usage: "the app name to search")
}
}