mas/MasKit/Commands/Vendor.swift
2019-01-29 23:15:24 -07:00

76 lines
2.3 KiB
Swift

//
// Vendor.swift
// mas-cli
//
// Created by Ben Chatelain on 2018-12-29.
// Copyright © 2016 mas-cli. All rights reserved.
//
import Commandant
import Result
/// Opens vendor's app page in a browser. Uses the iTunes Lookup API:
/// https://affiliate.itunes.apple.com/resources/documentation/itunes-store-web-service-search-api/#lookup
public struct VendorCommand: CommandProtocol {
public typealias Options = VendorOptions
public let verb = "vendor"
public let function = "Opens vendor's app page in a browser"
private let storeSearch: StoreSearch
private var openCommand: ExternalCommand
/// Designated initializer.
public init(storeSearch: StoreSearch = MasStoreSearch(),
openCommand: ExternalCommand = OpenSystemCommand()) {
self.storeSearch = storeSearch
self.openCommand = openCommand
}
/// Runs the command.
public func run(_ options: VendorOptions) -> Result<(), MASError> {
do {
guard let result = try storeSearch.lookup(app: options.appId)
else {
print("No results found")
return .failure(.noSearchResultsFound)
}
guard let vendorWebsite = result.sellerUrl
else { throw MASError.noVendorWebsite }
do {
try openCommand.run(arguments: vendorWebsite)
} catch {
printError("Unable to launch open command")
return .failure(.searchFailed)
}
if openCommand.failed {
let reason = openCommand.process.terminationReason
printError("Open failed: (\(reason)) \(openCommand.stderr)")
return .failure(.searchFailed)
}
} catch {
// Bubble up MASErrors
if let error = error as? MASError {
return .failure(error)
}
return .failure(.searchFailed)
}
return .success(())
}
}
public struct VendorOptions: OptionsProtocol {
let appId: Int
static func create(_ appId: Int) -> VendorOptions {
return VendorOptions(appId: appId)
}
public static func evaluate(_ mode: CommandMode) -> Result<VendorOptions, CommandantError<MASError>> {
return create
<*> mode <| Argument(usage: "the app ID to show the vendor's website")
}
}