import tempfile
import unittest
from pathlib import Path

from deploy_tool.installer import build_install_command, explain_install_failure, format_install_output, recommend_jdk_version
from deploy_tool.scanner import scan_project


class InstallerTests(unittest.TestCase):
    def test_recommends_jdk_8_from_maven_source_property(self):
        with tempfile.TemporaryDirectory() as tmp:
            root = Path(tmp)
            backend = root / "server"
            (backend / "src" / "main" / "java").mkdir(parents=True)
            (backend / "pom.xml").write_text(
                """
                <project>
                  <properties>
                    <maven.compiler.source>1.8</maven.compiler.source>
                    <maven.compiler.target>1.8</maven.compiler.target>
                  </properties>
                  <dependencies>
                    <dependency>spring-boot-starter-web</dependency>
                  </dependencies>
                </project>
                """,
                encoding="utf-8",
            )

            scan = scan_project(root)

            recommendation = recommend_jdk_version(scan)
            self.assertEqual(recommendation.version, "8")
            self.assertIn("maven.compiler.source", recommendation.reason)

    def test_recommends_jdk_17_for_spring_boot_3(self):
        with tempfile.TemporaryDirectory() as tmp:
            root = Path(tmp)
            backend = root / "server"
            (backend / "src" / "main" / "java").mkdir(parents=True)
            (backend / "pom.xml").write_text(
                """
                <project>
                  <parent>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-parent</artifactId>
                    <version>3.2.5</version>
                  </parent>
                </project>
                """,
                encoding="utf-8",
            )

            scan = scan_project(root)

            recommendation = recommend_jdk_version(scan)
            self.assertEqual(recommendation.version, "17")
            self.assertIn("Spring Boot 3", recommendation.reason)

    def test_defaults_to_jdk_8_without_project_signal(self):
        recommendation = recommend_jdk_version(None)

        self.assertEqual(recommendation.version, "8")
        self.assertIn("默认", recommendation.reason)

    def test_builds_jdk_winget_install_command(self):
        command = build_install_command("JDK", version="8")

        self.assertEqual(command, ["winget", "install", "-e", "--id", "EclipseAdoptium.Temurin.8.JDK"])

    def test_builds_node_winget_install_command(self):
        command = build_install_command("Node.js")

        self.assertEqual(command, ["winget", "install", "-e", "--id", "OpenJS.NodeJS.LTS"])

    def test_formats_winget_progress_without_garbled_bar(self):
        raw = "████████████▒▒▒▒▒▒ 63%\r".encode("utf-8")

        self.assertEqual(format_install_output(raw), ["安装进度: 63%"])

    def test_keeps_readable_winget_text(self):
        raw = "已找到 Eclipse Temurin JDK [EclipseAdoptium.Temurin.8.JDK]\n".encode("utf-8")

        self.assertEqual(format_install_output(raw), ["已找到 Eclipse Temurin JDK [EclipseAdoptium.Temurin.8.JDK]"])


    def test_explains_missing_maven_winget_package(self):
        message = explain_install_failure(
            "Maven",
            2316632084,
            ["找不到与输入条件匹配的程序包。"],
        )

        self.assertIn("winget 当前源找不到 Maven 包", message)
        self.assertIn("手动下载 Apache Maven", message)
        self.assertIn("mvn.cmd", message)


if __name__ == "__main__":
    unittest.main()