From 8953f57d887c060c3b58f83c38d2010d27a45ef3 Mon Sep 17 00:00:00 2001
From: tobi <31960611+tsmethurst@users.noreply.github.com>
Date: Mon, 25 Mar 2024 18:32:24 +0100
Subject: [feature] User-selectable preset CSS themes for accounts (#2777)

* [feature] User-selectable preset themes

* docs, more theme stuff

* lint, tests

* fix css name

* correct some little issues

* add another theme

* fix poll background

* okay last theme i swear

* make retrieval of apimodel themes more conventional

* preallocate stylesheet slices
---
 internal/processing/account/update.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'internal/processing/account/update.go')

diff --git a/internal/processing/account/update.go b/internal/processing/account/update.go
index 7b5561138..076b6d7f4 100644
--- a/internal/processing/account/update.go
+++ b/internal/processing/account/update.go
@@ -256,6 +256,22 @@ func (p *Processor) Update(ctx context.Context, account *gtsmodel.Account, form
 		}
 	}
 
+	if form.Theme != nil {
+		theme := *form.Theme
+		if theme == "" {
+			// Empty is easy, just clear this.
+			account.Settings.Theme = ""
+		} else {
+			// Theme was provided, check
+			// against known available themes.
+			if _, ok := p.themes.ByFileName[theme]; !ok {
+				err := fmt.Errorf("theme %s not available on this instance, see /api/v1/accounts/themes for available themes", theme)
+				return nil, gtserror.NewErrorBadRequest(err, err.Error())
+			}
+			account.Settings.Theme = theme
+		}
+	}
+
 	if form.CustomCSS != nil {
 		customCSS := *form.CustomCSS
 		if err := validate.CustomCSS(customCSS); err != nil {
-- 
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