feat: add location for theme (#2484)

#### What type of PR is this?
/kind improvement
/area core
/milestone 2.0

#### What this PR does / why we need it:
主题支持展示绝对路径位置
#### Which issue(s) this PR fixes:

Fixes #2461

#### Special notes for your reviewer:
/cc @halo-dev/sig-halo 
#### Does this PR introduce a user-facing change?

```release-note
None
```

src/main/java/run/halo/app/core/extension/Theme.java

@@ -25,6 +25,8 @@ public class Theme extends AbstractExtension {
     @Schema(required = true)
     private ThemeSpec spec;
 
+    private ThemeStatus status;
+
     @Data
     @ToString
     public static class ThemeSpec {
@@ -69,6 +71,11 @@ public class Theme extends AbstractExtension {
         }
     }
 
+    @Data
+    public static class ThemeStatus {
+        private String location;
+    }
+
     @Data
     @ToString
     public static class Author {

src/main/java/run/halo/app/core/extension/reconciler/ThemeReconciler.java

@@ -47,10 +47,25 @@ public class ThemeReconciler implements Reconciler<Request> {
                     reconcileThemeDeletion(theme);
                 }
                 themeSettingDefaultConfig(theme);
+                reconcileStatus(request.name());
             });
         return new Result(false, null);
     }
 
+    private void reconcileStatus(String name) {
+        client.fetch(Theme.class, name).ifPresent(theme -> {
+            Theme oldTheme = JsonUtils.deepCopy(theme);
+            if (theme.getStatus() == null) {
+                theme.setStatus(new Theme.ThemeStatus());
+            }
+            Path themePath = themePathPolicy.generate(theme);
+            theme.getStatus().setLocation(themePath.toAbsolutePath().toString());
+            if (!oldTheme.equals(theme)) {
+                client.update(theme);
+            }
+        });
+    }
+
     private void themeSettingDefaultConfig(Theme theme) {
         if (StringUtils.isBlank(theme.getSpec().getSettingName())) {
             return;

src/test/java/run/halo/app/core/extension/reconciler/ThemeReconcilerTest.java

@@ -102,7 +102,7 @@ class ThemeReconcilerTest {
 
         themeReconciler.reconcile(new Reconciler.Request(metadata.getName()));
 
-        verify(extensionClient, times(2)).fetch(eq(Theme.class), eq(metadata.getName()));
+        verify(extensionClient, times(3)).fetch(eq(Theme.class), eq(metadata.getName()));
         verify(extensionClient, times(2)).fetch(eq(Setting.class), eq(themeSpec.getSettingName()));
 
         assertThat(Files.exists(testWorkDir)).isTrue();
@@ -133,7 +133,7 @@ class ThemeReconcilerTest {
         Reconciler.Result reconcile =
             themeReconciler.reconcile(new Reconciler.Request(metadata.getName()));
         assertThat(reconcile.reEnqueue()).isFalse();
-        verify(extensionClient, times(1)).fetch(eq(Theme.class), eq(metadata.getName()));
+        verify(extensionClient, times(2)).fetch(eq(Theme.class), eq(metadata.getName()));
 
         // setting exists
         themeSpec.setSettingName("theme-test-setting");
@@ -142,9 +142,9 @@ class ThemeReconcilerTest {
         assertThat(theme.getSpec().getConfigMapName()).isNull();
         ArgumentCaptor<Theme> captor = ArgumentCaptor.forClass(Theme.class);
         themeReconciler.reconcile(new Reconciler.Request(metadata.getName()));
-        verify(extensionClient, times(3))
+        verify(extensionClient, times(5))
             .fetch(eq(Theme.class), eq(metadata.getName()));
-        verify(extensionClient, times(1))
+        verify(extensionClient, times(2))
             .update(captor.capture());
         Theme value = captor.getValue();
         assertThat(value.getSpec().getConfigMapName()).isNotNull();