[WEB-5262] feat: gitea sso (#8022)

* Feature/7137/gitea sso (#7940)

* added gitea auth to admin panel with configs , added api calls

* added gitea to oauth root (for signup and signin)

* removed log

* replace github oauth with gitea ouath error messages

* added gitea to auth root

* fix: update token expiration handling and remove unused variable in Gitea callback

* fix: include Gitea in OAuth enabled checks

* fix: improve error handling when fetching emails from Gitea

* chore : remove logs and add semicolons

* refactor: update Gitea authentication components and imports for consistency

* fix: enhance Gitea authentication form to auto-populate host value and improve OAuth checks

* refactor: enhance Gitea OAuth provider with improved error handling and URL validation

* fix: update authentication success messages to check for string value "1"

---------

Co-authored-by: Shivam Jain <shivam.clgstash@gmail.com>
Co-authored-by: Prateek Shourya <prateekshourya29@gmail.com>

apps/admin/core/components/authentication/gitea-config.tsx

@@ -0,0 +1,58 @@
+"use client";
+
+import React from "react";
+import { observer } from "mobx-react";
+import Link from "next/link";
+// icons
+import { Settings2 } from "lucide-react";
+// plane internal packages
+import type { TInstanceAuthenticationMethodKeys } from "@plane/types";
+import { ToggleSwitch, getButtonStyling } from "@plane/ui";
+import { cn } from "@plane/utils";
+// hooks
+import { useInstance } from "@/hooks/store";
+
+type Props = {
+  disabled: boolean;
+  updateConfig: (key: TInstanceAuthenticationMethodKeys, value: string) => void;
+};
+
+export const GiteaConfiguration: React.FC<Props> = observer((props) => {
+  const { disabled, updateConfig } = props;
+  // store
+  const { formattedConfig } = useInstance();
+  // derived values
+  const GiteaConfig = formattedConfig?.IS_GITEA_ENABLED ?? "";
+  const GiteaConfigured =
+    !!formattedConfig?.GITEA_HOST && !!formattedConfig?.GITEA_CLIENT_ID && !!formattedConfig?.GITEA_CLIENT_SECRET;
+
+  return (
+    <>
+      {GiteaConfigured ? (
+        <div className="flex items-center gap-4">
+          <Link href="/authentication/gitea" className={cn(getButtonStyling("link-primary", "md"), "font-medium")}>
+            Edit
+          </Link>
+          <ToggleSwitch
+            value={Boolean(parseInt(GiteaConfig))}
+            onChange={() => {
+              Boolean(parseInt(GiteaConfig)) === true
+                ? updateConfig("IS_GITEA_ENABLED", "0")
+                : updateConfig("IS_GITEA_ENABLED", "1");
+            }}
+            size="sm"
+            disabled={disabled}
+          />
+        </div>
+      ) : (
+        <Link
+          href="/authentication/gitea"
+          className={cn(getButtonStyling("neutral-primary", "sm"), "text-custom-text-300")}
+        >
+          <Settings2 className="h-4 w-4 p-0.5 text-custom-text-300/80" />
+          Configure
+        </Link>
+      )}
+    </>
+  );
+});