From 8c5a4c0519b4c230e5abc93ef23a9b4fa4139b7b Mon Sep 17 00:00:00 2001
From: Cameron <Alleyria@gmail.com>
Date: Mon, 17 Jul 2023 19:56:51 +0200
Subject: [PATCH] Debug

---
 lua/neogit/lib/hl.lua | 483 ++++++++++++------------------------------
 1 file changed, 132 insertions(+), 351 deletions(-)

diff --git a/lua/neogit/lib/hl.lua b/lua/neogit/lib/hl.lua
index 7d3052a3e..6b5ce7ab9 100644
--- a/lua/neogit/lib/hl.lua
+++ b/lua/neogit/lib/hl.lua
@@ -18,150 +18,86 @@ local Color = require("neogit.lib.color").Color
 local hl_store
 local M = {}
 
----@param group string Syntax group name.
----@param opt HiSpec
-function M.hi(group, opt)
-  vim.cmd(
-    string.format(
-      "hi %s %s guifg=%s guibg=%s gui=%s guisp=%s blend=%s",
-      opt.default and "default" or "",
-      group,
-      opt.fg or "NONE",
-      opt.bg or "NONE",
-      opt.gui or "NONE",
-      opt.sp or "NONE",
-      opt.blend or "NONE"
-    )
-  )
-end
-
----@param name string Syntax group name.
----@return table|nil
-function M.make_hl_link_attrs(name)
-  local fg = M.get_fg(name, true)
-  local bg = M.get_bg(name, true)
-  local gui = M.get_gui(name, true)
-
-  if fg or bg or gui then
-    return { fg = fg, bg = bg, gui = gui }
+local function to_hex(dec)
+  local hex = string.format("%x", dec)
+  if #hex < 6 then
+    return string.rep("0", 6 - #hex) .. hex
   else
-    return
+    return hex
   end
 end
 
 ---@param name string Syntax group name.
----@param attr string Attribute name.
----@param trans boolean Translate the syntax group (follows links).
-function M.get_hl_attr(name, attr, trans)
-  local id = vim.fn.hlID(name)
-  if id == 0 then
-    return
-  end
-  if id and trans then
-    id = vim.fn.synIDtrans(id)
+local function get_fg(name)
+  local color = vim.api.nvim_get_hl(0, { name = name })["fg"]
+  if color then
+    return "#" .. to_hex(color)
   end
-  if not id then
-    return
-  end
-
-  local value = vim.fn.synIDattr(id, attr)
-  if not value or value == "" then
-    return
-  end
-
-  return value
 end
 
----@param group_name string Syntax group name.
----@param trans boolean|nil Translate the syntax group (follows links). True by default.
-function M.get_fg(group_name, trans)
-  if type(trans) ~= "boolean" then
-    trans = true
-  end
-  return M.get_hl_attr(group_name, "fg", trans)
-end
-
----@param group_name string Syntax group name.
----@param trans boolean|nil Translate the syntax group (follows links). True by default.
-function M.get_bg(group_name, trans)
-  if type(trans) ~= "boolean" then
-    trans = true
+---@param name string Syntax group name.
+local function get_bg(name)
+  local color = vim.api.nvim_get_hl(0, { name = name })["bg"]
+  if color then
+    return "#" .. to_hex(color)
   end
-  return M.get_hl_attr(group_name, "bg", trans)
 end
 
----@param group_name string Syntax group name.
----@param trans boolean|nil Translate the syntax group (follows links). True by default.
-function M.get_gui(group_name, trans)
-  if type(trans) ~= "boolean" then
-    trans = true
-  end
-  local hls = {}
-  local attributes = {
-    "bold",
-    "italic",
-    "reverse",
-    "standout",
-    "underline",
-    "undercurl",
-    "strikethrough",
-  }
-
-  for _, attr in ipairs(attributes) do
-    if M.get_hl_attr(group_name, attr, trans) == "1" then
-      table.insert(hls, attr)
-    end
-  end
-
-  if #hls > 0 then
-    return table.concat(hls, ",")
-  end
-end
 
-function M.make_palette()
-  local bg = vim.o.bg
-  local hl_bg_normal = M.get_bg("Normal") or (bg == "dark" and "#22252A" or "#eeeeee")
-  local bg_normal = Color.from_hex(hl_bg_normal)
+-- stylua: ignore start
+local function make_palette()
+  local bg     = Color.from_hex(get_bg("Normal") or (vim.o.bg == "dark" and "#22252A" or "#eeeeee"))
+  local red    = Color.from_hex(get_fg("Error") or "#E06C75")
+  local orange = Color.from_hex(get_fg("SpecialChar") or "#ffcb6b")
+  local yellow = Color.from_hex(get_fg("PreProc") or "#FFE082")
+  local green  = Color.from_hex(get_fg("String") or "#C3E88D")
+  local cyan   = Color.from_hex(get_fg("Operator") or "#89ddff")
+  local blue   = Color.from_hex(get_fg("Macro") or "#82AAFF")
+  local purple = Color.from_hex(get_fg("Include") or "#C792EA")
 
   return {
-    bg0 = M.get_bg("Normal") or "#22252A",
-    bg1 = bg_normal:shade(0.019):to_css(),
-    bg2 = bg_normal:shade(0.065):to_css(),
-    bg3 = bg_normal:shade(0.11):to_css(),
-
-    grey = bg_normal:shade(0.4):to_css(),
-
-    red = M.get_fg("Error") or "#E06C75",
-    bg_red = Color.from_hex(M.get_fg("Error") or "#E06C75"):shade(-0.18):to_css(),
-    line_red = M.get_bg("DiffDelete")
-      or Color.from_hex(M.get_fg("Error") or "#E06C75"):shade(-0.6):set_saturation(0.4):to_css(),
-
-    orange = M.get_fg("SpecialChar") or "#ffcb6b",
-    bg_orange = Color.from_hex(M.get_fg("SpecialChar") or "#ffcb6b"):shade(-0.17):to_css(),
-
-    yellow = M.get_fg("PreProc") or "#FFE082",
-    bg_yellow = Color.from_hex(M.get_fg("PreProc") or "#FFE082"):shade(-0.17):to_css(),
-
-    green = M.get_fg("String") or "#C3E88D",
-    bg_green = Color.from_hex(M.get_fg("String") or "#C3E88D"):shade(-0.18):to_css(),
-    line_green = M.get_bg("DiffAdd")
-      or Color.from_hex(M.get_fg("String") or "#C3E88D"):shade(-0.72):set_saturation(0.2):to_css(),
-
-    cyan = M.get_fg("Operator") or "#89ddff",
-    bg_cyan = Color.from_hex(M.get_fg("Operator") or "#89ddff"):shade(-0.18):to_css(),
-
-    blue = M.get_fg("Macro") or "#82AAFF",
-    bg_blue = Color.from_hex(M.get_fg("Macro") or "#82AAFF"):shade(-0.18):to_css(),
-
-    purple = M.get_fg("Include") or "#C792EA",
-    bg_purple = Color.from_hex(M.get_fg("Include") or "#C792EA"):shade(-0.18):to_css(),
-    md_purple = "#c3a7e5",
+    bg0        = bg:to_css(),
+    bg1        = bg:shade(0.019):to_css(),
+    bg2        = bg:shade(0.065):to_css(),
+    bg3        = bg:shade(0.11):to_css(),
+    grey       = bg:shade(0.4):to_css(),
+    red        = red:to_css(),
+    bg_red     = red:shade(-0.18):to_css(),
+    line_red   = get_bg("DiffDelete") or red:shade(-0.6):set_saturation(0.4):to_css(),
+    orange     = orange:to_css(),
+    bg_orange  = orange:shade(-0.17):to_css(),
+    yellow     = yellow:to_css(),
+    bg_yellow  = yellow:shade(-0.17):to_css(),
+    green      = green:to_css(),
+    bg_green   = green:shade(-0.18):to_css(),
+    line_green = get_bg("DiffAdd") or green:shade(-0.72):set_saturation(0.2):to_css(),
+    cyan       = cyan:to_css(),
+    bg_cyan    = cyan:shade(-0.18):to_css(),
+    blue       = blue:to_css(),
+    bg_blue    = blue:shade(-0.18):to_css(),
+    purple     = purple:to_css(),
+    bg_purple  = purple:shade(-0.18):to_css(),
+    md_purple  = purple:shade(0.18):to_css(),
   }
 end
+-- stylua: ignore end
+
+-- https://github.com/lewis6991/gitsigns.nvim/blob/1e01b2958aebb79f1c33e7427a1bac131a678e0d/lua/gitsigns/highlight.lua#L250
+--- @param hl_name string
+--- @return boolean
+local function is_set(hl_name)
+  local exists, hl = pcall(vim.api.nvim_get_hl, 0, { name = hl_name })
+  if not exists then
+    return false
+  end
+
+  return not vim.tbl_isempty(hl)
+end
 
 function M.setup()
-  local palette = M.make_palette()
+  local palette = make_palette()
 
+  -- stylua: ignore start
   hl_store = {
     NeogitGraphRed = { fg = palette.red },
     NeogitGraphWhite = { fg = palette.white },
@@ -172,235 +108,80 @@ function M.setup()
     NeogitGraphBlue = { fg = palette.blue },
     NeogitGraphPurple = { fg = palette.purple },
     NeogitGraphGray = { fg = palette.grey },
-
-    NeogitGraphBoldRed = { fg = palette.red, gui = "bold" },
-    NeogitGraphBoldWhite = { fg = palette.white, gui = "bold" },
-    NeogitGraphBoldOrange = { fg = palette.orange, gui = "bold" },
-    NeogitGraphBoldYellow = { fg = palette.yellow, gui = "bold" },
-    NeogitGraphBoldGreen = { fg = palette.green, gui = "bold" },
-    NeogitGraphBoldCyan = { fg = palette.cyan, gui = "bold" },
-    NeogitGraphBoldBlue = { fg = palette.blue, gui = "bold" },
-    NeogitGraphBoldPurple = { fg = palette.purple, gui = "bold" },
-    NeogitGraphBoldGray = { fg = palette.grey, gui = "bold" },
-
-    NeogitHunkHeader = {
-      fg = palette.bg0,
-      bg = palette.grey,
-      gui = "bold",
-    },
-    NeogitHunkHeaderHighlight = {
-      fg = palette.bg0,
-      bg = palette.md_purple,
-      gui = "bold",
-    },
-    NeogitDiffContext = {
-      bg = palette.bg1,
-    },
-    NeogitDiffContextHighlight = {
-      bg = palette.bg2,
-    },
-    NeogitDiffAdd = {
-      bg = palette.line_green,
-      fg = palette.bg_green,
-    },
-    NeogitDiffAddHighlight = {
-      bg = palette.line_green,
-      fg = palette.green,
-    },
-    NeogitDiffDelete = {
-      bg = palette.line_red,
-      fg = palette.bg_red,
-    },
-    NeogitDiffDeleteHighlight = {
-      bg = palette.line_red,
-      fg = palette.red,
-    },
-    NeogitPopupSectionTitle = {
-      link = "Function",
-    },
-    NeogitPopupBranchName = {
-      link = "String",
-    },
-    NeogitPopupBold = {
-      gui = "bold",
-    },
-    NeogitPopupSwitchKey = {
-      fg = palette.purple,
-    },
-    NeogitPopupSwitchEnabled = {
-      link = "SpecialChar",
-    },
-    NeogitPopupSwitchDisabled = {
-      link = "Comment",
-    },
-    NeogitPopupOptionKey = {
-      fg = palette.purple,
-    },
-    NeogitPopupOptionEnabled = {
-      link = "SpecialChar",
-    },
-    NeogitPopupOptionDisabled = {
-      link = "Comment",
-    },
-    NeogitPopupConfigKey = {
-      fg = palette.purple,
-    },
-    NeogitPopupConfigEnabled = {
-      link = "SpecialChar",
-    },
-    NeogitPopupConfigDisabled = {
-      link = "Comment",
-    },
-    NeogitPopupActionKey = {
-      fg = palette.purple,
-    },
-    NeogitPopupActionDisabled = {
-      link = "Comment",
-    },
-    NeogitFilePath = {
-      fg = palette.blue,
-      gui = "italic",
-    },
-    NeogitCommitViewHeader = {
-      bg = palette.bg_cyan,
-      fg = palette.bg0,
-    },
-    NeogitDiffHeader = {
-      bg = palette.bg3,
-      fg = palette.blue,
-      gui = "bold",
-    },
-    NeogitDiffHeaderHighlight = {
-      bg = palette.bg3,
-      fg = palette.orange,
-      gui = "bold",
-    },
-    NeogitNotificationInfo = {
-      link = "DiagnosticInfo",
-    },
-    NeogitNotificationWarning = {
-      link = "DiagnosticWarn",
-    },
-    NeogitNotificationError = {
-      link = "DiagnosticError",
-    },
-    NeogitCommandText = {
-      link = "Comment",
-    },
-    NeogitCommandTime = {
-      link = "Comment",
-    },
-    NeogitCommandCodeNormal = {
-      link = "String",
-    },
-    NeogitCommandCodeError = {
-      link = "Error",
-    },
-    NeogitBranch = {
-      fg = palette.orange,
-      gui = "bold",
-    },
-    NeogitRemote = {
-      fg = palette.green,
-      gui = "bold",
-    },
-    NeogitUnmergedInto = {
-      link = "Function",
-    },
-    NeogitUnpulledFrom = {
-      link = "Function",
-    },
-    NeogitObjectId = {
-      link = "Comment",
-    },
-    NeogitStash = {
-      link = "Comment",
-    },
-    NeogitRebaseDone = {
-      link = "Comment",
-    },
-    NeogitCursorLine = {
-      bg = palette.bg1,
-    },
-    NeogitFold = {
-      fg = "None",
-      bg = "None",
-    },
-    NeogitChangeModified = {
-      fg = palette.bg_blue,
-      gui = "italic,bold",
-    },
-    NeogitChangeAdded = {
-      fg = palette.bg_green,
-      gui = "italic,bold",
-    },
-    NeogitChangeDeleted = {
-      fg = palette.bg_red,
-      gui = "italic,bold",
-    },
-    NeogitChangeRenamed = {
-      fg = palette.bg_purple,
-      gui = "italic,bold",
-    },
-    NeogitChangeUpdated = {
-      fg = palette.bg_orange,
-      gui = "italic,bold",
-    },
-    NeogitChangeCopied = {
-      fg = palette.bg_cyan,
-      gui = "italic,bold",
-    },
-    NeogitChangeBothModified = {
-      fg = palette.bg_yellow,
-      gui = "italic,bold",
-    },
-    NeogitChangeNewFile = {
-      fg = palette.bg_green,
-      gui = "italic,bold",
-    },
-    NeogitUntrackedfiles = {
-      fg = palette.bg_purple,
-      gui = "bold",
-    },
-    NeogitUnstagedchanges = {
-      fg = palette.bg_purple,
-      gui = "bold",
-    },
-    NeogitUnmergedchanges = {
-      fg = palette.bg_purple,
-      gui = "bold",
-    },
-    NeogitUnpulledchanges = {
-      fg = palette.bg_purple,
-      gui = "bold",
-    },
-    NeogitRecentcommits = {
-      fg = palette.bg_purple,
-      gui = "bold",
-    },
-    NeogitStagedchanges = {
-      fg = palette.bg_purple,
-      gui = "bold",
-    },
-    NeogitStashes = {
-      fg = palette.bg_purple,
-      gui = "bold",
-    },
-    NeogitRebasing = {
-      fg = palette.bg_purple,
-      gui = "bold",
-    },
+    NeogitGraphBoldRed = { fg = palette.red, bold = true },
+    NeogitGraphBoldWhite = { fg = palette.white, bold = true },
+    NeogitGraphBoldOrange = { fg = palette.orange, bold = true },
+    NeogitGraphBoldYellow = { fg = palette.yellow, bold = true },
+    NeogitGraphBoldGreen = { fg = palette.green, bold = true },
+    NeogitGraphBoldCyan = { fg = palette.cyan, bold = true },
+    NeogitGraphBoldBlue = { fg = palette.blue, bold = true },
+    NeogitGraphBoldPurple = { fg = palette.purple, bold = true },
+    NeogitGraphBoldGray = { fg = palette.grey, bold = true },
+    NeogitHunkHeader = { fg = palette.bg0, bg = palette.grey, bold = true },
+    NeogitHunkHeaderHighlight = { fg = palette.bg0, bg = palette.md_purple, bold = true },
+    NeogitDiffContext = { bg = palette.bg1 },
+    NeogitDiffContextHighlight = { bg = palette.bg2 },
+    NeogitDiffAdd = { bg = palette.line_green, fg = palette.bg_green },
+    NeogitDiffAddHighlight = { bg = palette.line_green, fg = palette.green },
+    NeogitDiffDelete = { bg = palette.line_red, fg = palette.bg_red },
+    NeogitDiffDeleteHighlight = { bg = palette.line_red, fg = palette.red },
+    NeogitPopupSectionTitle = { link = "Function" },
+    NeogitPopupBranchName = { link = "String" },
+    NeogitPopupBold = { bold = true },
+    NeogitPopupSwitchKey = { fg = palette.purple },
+    NeogitPopupSwitchEnabled = { link = "SpecialChar" },
+    NeogitPopupSwitchDisabled = { link = "Comment" },
+    NeogitPopupOptionKey = { fg = palette.purple },
+    NeogitPopupOptionEnabled = { link = "SpecialChar" },
+    NeogitPopupOptionDisabled = { link = "Comment" },
+    NeogitPopupConfigKey = { fg = palette.purple },
+    NeogitPopupConfigEnabled = { link = "SpecialChar" },
+    NeogitPopupConfigDisabled = { link = "Comment" },
+    NeogitPopupActionKey = { fg = palette.purple },
+    NeogitPopupActionDisabled = { link = "Comment" },
+    NeogitFilePath = { fg = palette.blue, italic = true },
+    NeogitCommitViewHeader = { bg = palette.bg_cyan, fg = palette.bg0 },
+    NeogitDiffHeader = { bg = palette.bg3, fg = palette.blue, bold = true },
+    NeogitDiffHeaderHighlight = { bg = palette.bg3, fg = palette.orange, bold = true },
+    NeogitNotificationInfo = { link = "DiagnosticInfo" },
+    NeogitNotificationWarning = { link = "DiagnosticWarn" },
+    NeogitNotificationError = { link = "DiagnosticError" },
+    NeogitCommandText = { link = "Comment" },
+    NeogitCommandTime = { link = "Comment" },
+    NeogitCommandCodeNormal = { link = "String" },
+    NeogitCommandCodeError = { link = "Error" },
+    NeogitBranch = { fg = palette.orange, bold = true },
+    NeogitRemote = { fg = palette.green, bold = true },
+    NeogitUnmergedInto = { link = "Function" },
+    NeogitUnpulledFrom = { link = "Function" },
+    NeogitObjectId = { link = "Comment" },
+    NeogitStash = { link = "Comment" },
+    NeogitRebaseDone = { link = "Comment" },
+    NeogitCursorLine = { bg = palette.bg1 },
+    NeogitFold = { fg = "None", bg = "None" },
+    NeogitChangeModified = { fg = palette.bg_blue, bold = true, italic = true },
+    NeogitChangeAdded = { fg = palette.bg_green, bold = true, italic = true },
+    NeogitChangeDeleted = { fg = palette.bg_red, bold = true, italic = true },
+    NeogitChangeRenamed = { fg = palette.bg_purple, bold = true, italic = true },
+    NeogitChangeUpdated = { fg = palette.bg_orange, bold = true, italic = true },
+    NeogitChangeCopied = { fg = palette.bg_cyan, bold = true, italic = true },
+    NeogitChangeBothModified = { fg = palette.bg_yellow, bold = true, italic = true },
+    NeogitChangeNewFile = { fg = palette.bg_green, bold = true, italic = true },
+    NeogitUntrackedfiles = { fg = palette.bg_purple, bold = true },
+    NeogitUnstagedchanges = { fg = palette.bg_purple, bold = true },
+    NeogitUnmergedchanges = { fg = palette.bg_purple, bold = true },
+    NeogitUnpulledchanges = { fg = palette.bg_purple, bold = true },
+    NeogitRecentcommits = { fg = palette.bg_purple, bold = true },
+    NeogitStagedchanges = { fg = palette.bg_purple, bold = true },
+    NeogitStashes = { fg = palette.bg_purple, bold = true },
+    NeogitRebasing = { fg = palette.bg_purple, bold = true },
   }
+  -- stylua: ignore end
 
   for group, hl in pairs(hl_store) do
-    if vim.fn.hlID(group) == 0 then
-      if hl.link then
-        local attrs = M.make_hl_link_attrs(hl.link) or {}
-        attrs.default = true
-        M.hi(group, vim.tbl_extend("keep", hl, attrs))
-      else
-        M.hi(group, hl)
-      end
+    if not is_set(group) then
+      hl.default = true
+      vim.api.nvim_set_hl(0, group, hl)
     end
   end
 end