//===----------------------------------------------------------------------===//
// Copyright © 2025 Apple Inc. and the Containerization project authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//===----------------------------------------------------------------------===//

import ContainerizationOCI
import Foundation
import Testing

@testable import Containerization

struct LinuxContainerTests {

    @Test func processInitFromImageConfigWithAllFields() {
        let imageConfig = ImageConfig(
            user: "appuser",
            env: ["NODE_ENV=production", "PORT=3000"],
            entrypoint: ["/usr/bin/node"],
            cmd: ["app.js", "--verbose"],
            workingDir: "/app"
        )

        let process = LinuxContainer.Configuration.Process(from: imageConfig)

        #expect(process.workingDirectory == "/app")
        #expect(process.environmentVariables == ["NODE_ENV=production", "PORT=3000"])
        #expect(process.arguments == ["/usr/bin/node", "app.js", "--verbose"])
        #expect(process.user.username == "appuser")
    }

    @Test func processInitFromImageConfigWithNilValues() {
        let imageConfig = ImageConfig(
            user: nil,
            env: nil,
            entrypoint: nil,
            cmd: nil,
            workingDir: nil
        )

        let process = LinuxContainer.Configuration.Process(from: imageConfig)

        #expect(process.workingDirectory == "/")
        #expect(process.environmentVariables == [])
        #expect(process.arguments == [])
        #expect(process.user.username == "")  // Default User() has empty string username
    }

    @Test func processInitFromImageConfigEntrypointAndCmdConcatenation() {
        let imageConfig = ImageConfig(
            entrypoint: ["/bin/sh", "-c"],
            cmd: ["echo 'hello'", "&&", "sleep 10"]
        )

        let process = LinuxContainer.Configuration.Process(from: imageConfig)

        #expect(process.arguments == ["/bin/sh", "-c", "echo 'hello'", "&&", "sleep 10"])
    }
}