//
//  PasswordStoreTest.swift
//  passKitTests
//
//  Created by Mingshen Sun on 13/4/2020.
//  Copyright © 2020 Bob Sun. All rights reserved.
//

import Foundation
import ObjectiveGit
import XCTest

@testable import passKit

final class PasswordStoreTest: XCTestCase {
    func testCloneAndDecryptMultiKeys() throws {
        let remoteRepoURL = Bundle(for: type(of: self)).resourceURL!.appendingPathComponent("Fixtures/password-store.git")
        let url = Globals.sharedContainerURL.appendingPathComponent("Library/password-store-test/")

        Defaults.isEnableGPGIDOn = true
        defer {
            Defaults.isEnableGPGIDOn = false
        }
        let passwordStore = PasswordStore(url: url)
        defer {
            passwordStore.erase()
        }
        try passwordStore.cloneRepository(remoteRepoURL: remoteRepoURL, branchName: "master")
        expectation(for: NSPredicate { _, _ in FileManager.default.fileExists(atPath: url.path) }, evaluatedWith: nil)
        waitForExpectations(timeout: 3, handler: nil)

        [
            ("work/github.com", "4712286271220DB299883EA7062E678DA1024DAE"),
            ("personal/github.com", "787EAE1A5FA3E749AA34CC6AA0645EBED862027E"),
        ].forEach { path, id in
            let keyID = findGPGID(from: url.appendingPathComponent(path))
            XCTAssertEqual(keyID, id)
        }

        let keychain = AppKeychain.shared
        try KeyFileManager(keyType: PGPKey.PUBLIC, keyPath: "", keyHandler: keychain.add).importKey(from: RSA2048_RSA4096.publicKeys)
        try KeyFileManager(keyType: PGPKey.PRIVATE, keyPath: "", keyHandler: keychain.add).importKey(from: RSA2048_RSA4096.privateKeys)
        try PGPAgent.shared.initKeys()

        let personal = try decrypt(passwordStore: passwordStore, path: "personal/github.com.gpg", passphrase: "passforios")
        XCTAssertEqual(personal.plainText, "passwordforpersonal\n")

        let work = try decrypt(passwordStore: passwordStore, path: "work/github.com.gpg", passphrase: "passforios")
        XCTAssertEqual(work.plainText, "passwordforwork\n")

        let testPassword = Password(name: "test", path: "test.gpg", plainText: "testpassword")
        let testPasswordEntity = try passwordStore.add(password: testPassword)!
        let testPasswordPlain = try passwordStore.decrypt(passwordEntity: testPasswordEntity, requestPGPKeyPassphrase: requestPGPKeyPassphrase)
        XCTAssertEqual(testPasswordPlain.plainText, "testpassword")
    }

    private func decrypt(passwordStore: PasswordStore, path: String, passphrase _: String) throws -> Password {
        let entity = passwordStore.fetchPasswordEntity(with: path)!
        return try passwordStore.decrypt(passwordEntity: entity, requestPGPKeyPassphrase: requestPGPKeyPassphrase)
    }
}