From 584f65c3492a447c8e30c2056c2a161cb17703db Mon Sep 17 00:00:00 2001
From: Eduard Heimbuch <eduard.heimbuch@cloudogu.com>
Date: Wed, 15 Jan 2020 20:29:18 +0100
Subject: [PATCH] render markdown files in sourcesView

---
 .../components/content/MarkdownViewer.tsx     | 38 +++++++++++++++++++
 .../repos/sources/containers/SourcesView.tsx  | 37 +++++++++++++++---
 2 files changed, 69 insertions(+), 6 deletions(-)
 create mode 100644 scm-ui/ui-webapp/src/repos/sources/components/content/MarkdownViewer.tsx

diff --git a/scm-ui/ui-webapp/src/repos/sources/components/content/MarkdownViewer.tsx b/scm-ui/ui-webapp/src/repos/sources/components/content/MarkdownViewer.tsx
new file mode 100644
index 0000000000..86731ace1b
--- /dev/null
+++ b/scm-ui/ui-webapp/src/repos/sources/components/content/MarkdownViewer.tsx
@@ -0,0 +1,38 @@
+import React, { FC, useEffect, useState } from "react";
+import { getContent } from "./SourcecodeViewer";
+import { Link, File } from "@scm-manager/ui-types";
+import { Loading, ErrorNotification, MarkdownView, Button, Level } from "@scm-manager/ui-components";
+
+type Props = {
+  file: File;
+};
+
+const MarkdownViewer: FC<Props> = ({ file }) => {
+  const [loading, setLoading] = useState<boolean>(true);
+  const [error, setError] = useState<Error | undefined>(undefined);
+  const [content, setContent] = useState<string>("");
+
+  useEffect(() => {
+    getContent((file._links.self as Link).href)
+      .then(content => {
+        setLoading(false);
+        setContent(content);
+      })
+      .catch(error => {
+        setLoading(false);
+        setError(error);
+      });
+  }, [file]);
+
+  if (loading) {
+    return <Loading />;
+  }
+
+  if (error) {
+    return <ErrorNotification error={error} />;
+  }
+
+  return <MarkdownView content={content} />;
+};
+
+export default MarkdownViewer;
diff --git a/scm-ui/ui-webapp/src/repos/sources/containers/SourcesView.tsx b/scm-ui/ui-webapp/src/repos/sources/containers/SourcesView.tsx
index a22c2c8e92..c0c35c8bb9 100644
--- a/scm-ui/ui-webapp/src/repos/sources/containers/SourcesView.tsx
+++ b/scm-ui/ui-webapp/src/repos/sources/containers/SourcesView.tsx
@@ -1,14 +1,16 @@
 import React from "react";
-
+import { WithTranslation, withTranslation } from "react-i18next";
 import SourcecodeViewer from "../components/content/SourcecodeViewer";
 import ImageViewer from "../components/content/ImageViewer";
+import MarkdownViewer from "../components/content/MarkdownViewer";
 import DownloadViewer from "../components/content/DownloadViewer";
 import { ExtensionPoint } from "@scm-manager/ui-extensions";
 import { getContentType } from "./contentType";
 import { File, Repository } from "@scm-manager/ui-types";
-import { ErrorNotification, Loading } from "@scm-manager/ui-components";
+import { ErrorNotification, Loading, Button, Level } from "@scm-manager/ui-components";
+import { Icon } from "@scm-manager/ui-components/src";
 
-type Props = {
+type Props = WithTranslation & {
   repository: Repository;
   file: File;
   revision: string;
@@ -18,6 +20,7 @@ type Props = {
 type State = {
   contentType: string;
   language: string;
+  renderMarkdown: boolean;
   loaded: boolean;
   error?: Error;
 };
@@ -29,7 +32,8 @@ class SourcesView extends React.Component<Props, State> {
     this.state = {
       contentType: "",
       language: "",
-      loaded: false
+      loaded: false,
+      renderMarkdown: true
     };
   }
 
@@ -53,11 +57,32 @@ class SourcesView extends React.Component<Props, State> {
       });
   }
 
+  toggleMarkdown = () => {
+    this.setState({ renderMarkdown: !this.state.renderMarkdown });
+  };
+
   showSources() {
     const { file, revision } = this.props;
-    const { contentType, language } = this.state;
+    const { contentType, language, renderMarkdown } = this.state;
     if (contentType.startsWith("image/")) {
       return <ImageViewer file={file} />;
+    } else if (contentType.includes("markdown")) {
+      return (
+        <>
+          <Level
+            right={
+              <Button
+                color={renderMarkdown ? "" : "primary"}
+                action={this.toggleMarkdown}
+                title={renderMarkdown ? "render sources" : "render markdown"}
+                icon="markdown"
+              >
+              </Button>
+            }
+          />
+          {renderMarkdown ? <MarkdownViewer file={file} /> : <SourcecodeViewer file={file} language={language} />}
+        </>
+      );
     } else if (language) {
       return <SourcecodeViewer file={file} language={language} />;
     } else if (contentType.startsWith("text/")) {
@@ -95,4 +120,4 @@ class SourcesView extends React.Component<Props, State> {
   }
 }
 
-export default SourcesView;
+export default withTranslation("repos")(SourcesView);