import Foundation
import Testing
@testable import gitbay

private func makeClient() throws -> (GitbayClient, StubProtocol.Box) {
    let box = StubProtocol.box()
    let client = GitbayClient(
        instance: try GitbayInstance(url: "https://gitbay.org"),
        token: "test-token",
        session: box.session()
    )
    return (client, box)
}

private func posted(_ stub: StubProtocol.Box) throws -> [[String]] {
    try stub.seen.filter { $0.method == "POST" }.map { seen in
        let body = try #require(try JSONSerialization.jsonObject(with: seen.body) as? [String: Any])
        return try #require(body["argv"] as? [String])
    }
}

@MainActor
struct RepoTransferDeleteTests {

    @Test func transferNamesTheNewOwnerAndReturnsTheNewPath() async throws {
        let (client, stub) = try makeClient()
        stub.enqueue(.init(status: 200, json: #"{"protocol_version":1,"data":{"repo":"krz/app","was":"cmc/app"},"exit_code":0}"#, match: "cmd"))
        let model = RepoSettingsViewModel(client: client, repoPath: "cmc/app")

        let moved = await model.transfer(to: " krz ")

        #expect(moved == "krz/app")
        #expect(try posted(stub) == [["repo", "transfer", "cmc/app", "krz"]])
    }

    @Test func aRefusedTransferSaysWhy() async throws {
        let (client, stub) = try makeClient()
        stub.enqueue(.init(status: 403, json: #"{"protocol_version":1,"error":"you cannot create repositories in krz","exit_code":4}"#, match: "cmd"))
        let model = RepoSettingsViewModel(client: client, repoPath: "cmc/app")

        #expect(await model.transfer(to: "krz") == nil)
        #expect(model.actionError == "you cannot create repositories in krz")
    }

    @Test func deleteSendsYesAndReportsIt() async throws {
        let (client, stub) = try makeClient()
        stub.enqueue(.init(status: 200, json: #"{"protocol_version":1,"data":{"deleted":"cmc/app"},"exit_code":0}"#, match: "cmd"))
        let model = RepoSettingsViewModel(client: client, repoPath: "cmc/app")

        #expect(await model.delete())
        #expect(try posted(stub) == [["repo", "delete", "cmc/app", "--yes"]])
    }

    @Test func aRefusedDeleteSaysWhy() async throws {
        let (client, stub) = try makeClient()
        stub.enqueue(.init(status: 403, json: #"{"protocol_version":1,"error":"only the owner or an admin can delete cmc/app","exit_code":4}"#, match: "cmd"))
        let model = RepoSettingsViewModel(client: client, repoPath: "cmc/app")

        #expect(!(await model.delete()))
        #expect(model.actionError == "only the owner or an admin can delete cmc/app")
    }

    @Test func aDeleteWhoseRetryFindsNothingIsDone() async throws {
        let (client, stub) = try makeClient()
        stub.enqueue(.init(status: 500, json: #"{"protocol_version":1,"error":"removing the directory: busy","exit_code":1}"#, match: "cmd"))
        stub.enqueue(.init(status: 404, json: #"{"protocol_version":1,"error":"no repository cmc/app","exit_code":3}"#, match: "cmd"))
        let model = RepoSettingsViewModel(client: client, repoPath: "cmc/app")

        #expect(await model.delete())
        #expect(model.actionError == nil)
    }
}