starting backend

Signed-off-by: Peter Siegmund <peter@rdkr.com>

backend/src/main/java/com/rdkr/tide_display/backend/Application.java

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+package com.rdkr.tide_display.backend;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+	public static void main(String[] args) {
+		SpringApplication.run(Application.class, args);
+	}
+
+}

backend/src/main/java/com/rdkr/tide_display/backend/firmware/controller/VersionController.java

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+package com.rdkr.tide_display.backend.firmware.controller;
+
+import com.rdkr.tide_display.backend.firmware.service.FirmwareService;
+import com.rdkr.tide_display.backend.gcp.Firmware;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/v1/versions")
+public class VersionController {
+
+  private final FirmwareService firmwareService;
+
+  @GetMapping()
+  public ResponseEntity<List<Firmware>> getVersions() {
+    return ResponseEntity.of(Optional.of(firmwareService.getFirmwareVersions()));
+  }
+
+  @GetMapping("latest")
+  public ResponseEntity<Firmware> getLatestVersion() {
+    return ResponseEntity.of(Optional.of(firmwareService.getLatestFirmwareVersion()));
+  }
+
+  @GetMapping("{version:\\d\\.\\d\\.\\d}")
+  public ResponseEntity<Firmware> getVersion(@PathVariable String version) {
+    return ResponseEntity.of(firmwareService.getFirmwareVersion(version));
+  }
+}

backend/src/main/java/com/rdkr/tide_display/backend/firmware/service/FirmwareService.java

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+package com.rdkr.tide_display.backend.firmware.service;
+
+import com.rdkr.tide_display.backend.gcp.Firmware;
+import java.util.List;
+import java.util.Optional;
+
+public interface FirmwareService {
+
+  List<Firmware> getFirmwareVersions();
+
+  Firmware getLatestFirmwareVersion();
+
+  Optional<Firmware> getFirmwareVersion(String version);
+}

backend/src/main/java/com/rdkr/tide_display/backend/firmware/service/FirmwareServiceImpl.java

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+package com.rdkr.tide_display.backend.firmware.service;
+
+import com.rdkr.tide_display.backend.gcp.Firmware;
+import com.rdkr.tide_display.backend.gcp.StorageService;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class FirmwareServiceImpl implements FirmwareService {
+
+  private final StorageService storageService;
+
+  @Override
+  public List<Firmware> getFirmwareVersions() {
+    return storageService.getFirmwareVersions();
+  }
+
+  @Override
+  public Firmware getLatestFirmwareVersion() {
+    return storageService.getFirmwareVersions().getFirst();
+  }
+
+  @Override
+  public Optional<Firmware> getFirmwareVersion(String version) {
+    return
+        storageService.getFirmwareVersions().stream()
+            .filter(firmware -> firmware.version().equals(version))
+            .findFirst();
+  }
+}

backend/src/main/java/com/rdkr/tide_display/backend/gcp/Firmware.java

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+package com.rdkr.tide_display.backend.gcp;
+
+public record Firmware(String version, String url, String checksum) {
+
+}

backend/src/main/java/com/rdkr/tide_display/backend/gcp/StorageService.java

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+package com.rdkr.tide_display.backend.gcp;
+
+import java.util.List;
+
+public interface StorageService {
+  List<Firmware> getFirmwareVersions();
+}

backend/src/main/java/com/rdkr/tide_display/backend/gcp/service/StorageServiceImpl.java

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+package com.rdkr.tide_display.backend.gcp.service;
+
+import com.rdkr.tide_display.backend.gcp.Firmware;
+import com.rdkr.tide_display.backend.gcp.StorageService;
+import java.util.List;
+import org.springframework.stereotype.Service;
+
+@Service
+public class StorageServiceImpl implements StorageService {
+
+  @Override
+  public List<Firmware> getFirmwareVersions() {
+    return List.of(
+        new Firmware("1.0.1", "/firmware/1.0.1/firmware.bin", "0987654321"),
+        new Firmware("1.0.0", "/firmware/1.0.0/firmware.bin", "1234567890")
+    );
+  }
+}

backend/src/main/resources/application.properties

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+spring.application.name=Backend

backend/src/test/java/com/rdkr/tide_display/backend/ApplicationTests.java

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+package com.rdkr.tide_display.backend;
+
+import lombok.val;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.modulith.core.ApplicationModules;
+import org.springframework.modulith.docs.Documenter;
+
+@SpringBootTest
+class ApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+	@Test
+	void modules() {
+		ApplicationModules.of(Application.class).forEach(System.out::println);
+	}
+
+	@Test
+	void verify() {
+		ApplicationModules.of(Application.class).verify();
+	}
+
+	@Test
+	void documentation() {
+		val modules = ApplicationModules.of(Application.class).verify();
+
+		new Documenter(modules).writeModulesAsPlantUml();
+	}
+
+}