✨ Allow UI to download a file (empty)

backend/src/main/kotlin/xyz/poeschl/roborush/controller/ConfigRestController.kt

@@ -3,7 +3,10 @@ package xyz.poeschl.roborush.controller
 import io.swagger.v3.oas.annotations.security.SecurityRequirement
 import org.apache.commons.lang3.EnumUtils
 import org.slf4j.LoggerFactory
+import org.springframework.core.io.ByteArrayResource
+import org.springframework.core.io.Resource
 import org.springframework.http.MediaType
+import org.springframework.http.ResponseEntity
 import org.springframework.security.access.prepost.PreAuthorize
 import org.springframework.web.bind.annotation.*
 import org.springframework.web.multipart.MultipartFile
@@ -130,6 +133,25 @@ class ConfigRestController(private val configService: ConfigService, private val
     }
   }
 
+  @SecurityRequirement(name = "Bearer Authentication")
+  @PreAuthorize("hasRole('${User.ROLE_ADMIN}')")
+  @GetMapping("/map/{id}/export", produces = [MediaType.APPLICATION_OCTET_STREAM_VALUE])
+  fun exportMap(@PathVariable id: Long): ResponseEntity<Resource> {
+    val map = mapService.getMap(id)
+
+    if (map != null) {
+      // TODO: Create image data
+      val resource = ByteArrayResource(ByteArray(4, { i -> i.toByte() }))
+
+      return ResponseEntity.ok()
+        .contentLength(resource.contentLength())
+        .contentType(MediaType.APPLICATION_OCTET_STREAM)
+        .body(resource)
+    } else {
+      throw MapNotFound("No matching map found for deletion")
+    }
+  }
+
   @SecurityRequirement(name = "Bearer Authentication")
   @PreAuthorize("hasRole('${User.ROLE_ADMIN}')")
   @PostMapping("/client/globalNotificationText", consumes = [MediaType.APPLICATION_JSON_VALUE])

frontend/src/components/MapEditorExportBox.vue

@@ -0,0 +1,42 @@
+<template>
+  <InfoBoxTemplate title="Export Map">
+    <div class="control">
+      <button class="button is-primary is-fullwidth" :class="{ 'is-loading': exporting }" @click.prevent="exportMap">
+        <div class="icon mr-1">
+          <FontAwesomeIcon icon="fa-solid fa-file-export" />
+        </div>
+        Export
+      </button>
+    </div>
+  </InfoBoxTemplate>
+</template>
+
+<script setup lang="ts">
+import type { PlaygroundMap, PlaygroundMapAttributes } from "@/models/Map";
+import { computed, onMounted, type Ref, ref, watch } from "vue";
+import { useConfigStore } from "@/stores/ConfigStore";
+import InfoBoxTemplate from "@/components/templates/InfoBoxTemplate.vue";
+import log from "loglevel";
+
+const configStore = useConfigStore();
+
+const exporting = ref<boolean>(false);
+
+const props = defineProps<{
+  map: PlaygroundMap;
+}>();
+
+const exportMap = () => {
+  exporting.value = true;
+  configStore
+    .exportMap(props.map)
+    .then((link) => {
+      link.click();
+    })
+    .finally(() => {
+      exporting.value = false;
+    });
+};
+</script>
+
+<style scoped lang="scss"></style>

frontend/src/services/ConfigService.ts

@@ -45,6 +45,10 @@ export default function useConfigService() {
     return axiosWithAuth.delete(`${baseConfigUrl}/map/${mapId}`);
   };
 
+  const exportMap = (mapId: number): Promise<Blob> => {
+    return axiosWithAuth.get(`${baseConfigUrl}/map/${mapId}/export`, { responseType: "blob" }).then((response) => response.data);
+  };
+
   const setGlobalNotificationText = (notificationText: string): Promise<void> => {
     return axiosWithAuth.post(`${baseConfigUrl}/client/globalNotificationText`, { text: notificationText });
   };
@@ -64,5 +68,6 @@ export default function useConfigService() {
     setMapTile,
     setGlobalNotificationText,
     getClientSettings: getGlobalNotificationText,
+    exportMap,
   };
 }

frontend/src/stores/ConfigStore.ts

@@ -84,6 +84,17 @@ export const useConfigStore = defineStore("configStore", () => {
     });
   };
 
+  const exportMap = (map: PlaygroundMap): Promise<HTMLAnchorElement> => {
+    return configService.exportMap(map.id).then((response) => {
+      const blob = new Blob([response], { type: "image/png" });
+      const link = document.createElement("a");
+      link.href = URL.createObjectURL(blob);
+      link.download = `${map.mapName}.png`;
+      setTimeout(() => URL.revokeObjectURL(link.href), 5000);
+      return link;
+    });
+  };
+
   return {
     currentConfig,
     availableMaps,
@@ -95,6 +106,7 @@ export const useConfigStore = defineStore("configStore", () => {
     removeMap,
     setMapAttributes,
     setMapTile,
+    exportMap,
     clientSettings,
     updateClientConfig,
     initWebsocket,

frontend/src/views/MapEditorView.vue

@@ -56,7 +56,9 @@
           @update:pathDrawEnabled="(value) => (pathDrawEnabled = value)"
         />
       </div>
-      <div class="box" v-if="activeTab == EditorTab.EXPORT">EXPORT</div>
+      <div v-if="map != undefined && activeTab == EditorTab.EXPORT">
+        <MapEditorExportBox :map="map" />
+      </div>
     </div>
   </div>
 </template>
@@ -71,6 +73,7 @@ import { useConfigStore } from "@/stores/ConfigStore";
 import MapEditorAttributesBox from "@/components/MapEditorAttributesBox.vue";
 import MapEditorMeasureBox from "@/components/MapEditorMeasureBox.vue";
 import MapEditorLocationChangeBox from "@/components/MapEditorLocationChangeBox.vue";
+import MapEditorExportBox from "@/components/MapEditorExportBox.vue";
 
 const route = useRoute();
 const router = useRouter();