From 089ff668d23933f5e77a3fd876b21807fd772fd6 Mon Sep 17 00:00:00 2001
From: Folke Lemaitre <folke.lemaitre@gmail.com>
Date: Tue, 3 Dec 2024 10:19:04 +0100
Subject: [PATCH] refactor(util): move blend to util

---
 lua/snacks/profiler/ui.lua | 19 +++----------------
 lua/snacks/util.lua        | 13 +++++++++++++
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/lua/snacks/profiler/ui.lua b/lua/snacks/profiler/ui.lua
index d42720fc..fd9c483a 100644
--- a/lua/snacks/profiler/ui.lua
+++ b/lua/snacks/profiler/ui.lua
@@ -220,19 +220,6 @@ function M.highlight(buf, opts)
   end
 end
 
----@param fg string foreground color
----@param bg string background color
----@param alpha number number between 0 and 1. 0 results in bg, 1 results in fg
-function M.blend(fg, bg, alpha)
-  local bg_rgb = { tonumber(bg:sub(2, 3), 16), tonumber(bg:sub(4, 5), 16), tonumber(bg:sub(6, 7), 16) }
-  local fg_rgb = { tonumber(fg:sub(2, 3), 16), tonumber(fg:sub(4, 5), 16), tonumber(fg:sub(6, 7), 16) }
-  local blend = function(i)
-    local ret = (alpha * fg_rgb[i] + ((1 - alpha) * bg_rgb[i]))
-    return math.floor(math.min(math.max(0, ret), 255) + 0.5)
-  end
-  return string.format("#%02x%02x%02x", blend(1), blend(2), blend(3))
-end
-
 function M.colors()
   ---@type snacks.util.hl
   local hl_groups = {
@@ -246,11 +233,11 @@ function M.colors()
   local red = Snacks.util.color("DiagnosticError") or fallbacks.Error
   for _, s in ipairs({ "Info", "Warn", "Error" }) do
     local color = Snacks.util.color("Diagnostic" .. s) or fallbacks[s]
-    hl_groups["Icon" .. s] = { fg = color, bg = M.blend(color, bg, 0.3) }
-    hl_groups["Badge" .. s] = { fg = color, bg = M.blend(color, bg, 0.1) }
+    hl_groups["Icon" .. s] = { fg = color, bg = Snacks.util.blend(color, bg, 0.3) }
+    hl_groups["Badge" .. s] = { fg = color, bg = Snacks.util.blend(color, bg, 0.1) }
   end
   for i = 1, M.shades do
-    hl_groups[("Hot%02d"):format(i)] = { bg = M.blend(red, bg, i / (M.shades + 1)) }
+    hl_groups[("Hot%02d"):format(i)] = { bg = Snacks.util.blend(red, bg, i / (M.shades + 1)) }
   end
   Snacks.util.set_hl(hl_groups, { prefix = "SnacksProfiler", managed = false })
   vim.api.nvim_create_autocmd("ColorScheme", {
diff --git a/lua/snacks/util.lua b/lua/snacks/util.lua
index a3d130be..5a19ab5e 100644
--- a/lua/snacks/util.lua
+++ b/lua/snacks/util.lua
@@ -97,4 +97,17 @@ function M.file_decode(str)
   end)
 end
 
+---@param fg string foreground color
+---@param bg string background color
+---@param alpha number number between 0 and 1. 0 results in bg, 1 results in fg
+function M.blend(fg, bg, alpha)
+  local bg_rgb = { tonumber(bg:sub(2, 3), 16), tonumber(bg:sub(4, 5), 16), tonumber(bg:sub(6, 7), 16) }
+  local fg_rgb = { tonumber(fg:sub(2, 3), 16), tonumber(fg:sub(4, 5), 16), tonumber(fg:sub(6, 7), 16) }
+  local blend = function(i)
+    local ret = (alpha * fg_rgb[i] + ((1 - alpha) * bg_rgb[i]))
+    return math.floor(math.min(math.max(0, ret), 255) + 0.5)
+  end
+  return string.format("#%02x%02x%02x", blend(1), blend(2), blend(3))
+end
+
 return M