init.lua

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require("core.opts")
require("core.keymaps")
require("core.functions")
require("core.autocmds")
require("core.fonts")
require("core.cmp.gitcommit")
require("core.cmp.regex")

local check = require("core.killswitch") -- for conditionally disabling plugins

if not check.is_git then
  return
end

--==========================[ @LAZY.NVIM_BOOTSTRAP]==========================--

local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
local FIRST_RUN = false
local function install_lazy()
  local lazyrepo = "https://github.com/folke/lazy.nvim.git"
  local out = vim.fn.system({ "git", "clone", "--filter=blob:none", "--branch=stable", lazyrepo, lazypath })
  if vim.v.shell_error ~= 0 then
    vim.api.nvim_echo({
      { "Failed to clone lazy.nvim:\n", "ErrorMsg" },
      { out,                            "WarningMsg" },
      { "\nPress any key to exit..." },
    }, true, {})
    vim.fn.getchar()
    os.exit(1)
  end
end

if not (vim.uv or vim.loop).fs_stat(lazypath) then
  install_lazy()
  FIRST_RUN = true
end
vim.opt.rtp:prepend(lazypath)


local opts = {
  ui = {
    size = { width = 0.8, height = 0.8 },
    border = "rounded",
    backdrop = 100,
  },
  change_detection = {
    enabled = true,
    notify = false,
  },
  performance = {
    rtp = {
      ---@type string[]
      paths = {},      -- custom paths to includes in the rtp
      disabled_plugins = {
        "gzip",        -- Allows Neovim to read and write gzip compressed files.
        -- "matchit", -- Enhances the `%` command to jump between {[()]}
        "matchparen",  -- Highlights matching {[()]}
        "netrwPlugin", -- File explorer (:Sex, :Vex, :Ex).
        "tarPlugin",   -- Adds support for handling tar archives.
        "tohtml",      -- Converts a buffer or a part of a buffer to HTML format.
        "tutor",       -- Interactive tutorial for learning basic Neovim commands.
        "zipPlugin",   -- Adds support for handling zip archives.
      },
    },
  },
}

require("lazy").setup("plugins", opts)

if FIRST_RUN then
  vim.cmd(":MasonToolsInstall")
end

--=======================[ @AFTER LAZY LOAD SETTINGS ]=======================--

function Load_dynamic_colors()
  -- Clear cache
  package.loaded['lualine.themes.catppuccin-nvim'] = nil

  local customcat = require 'lualine.themes.catppuccin-nvim'
  -- Problem: Ugly white separators due to lualine transparency handling bug. Source: lua/catppuccin/utils/lualine.lua > catppuccin.inactive.a.bg = 'NONE'
  customcat.inactive.a.bg = '#242428'
  -- Transparent background for center
  customcat.normal.c.bg = 'NONE'

  local ok, colors = pcall(require, 'colors')
  if ok and colors then
    package.loaded['colors'] = nil

    -- █▀ █▀▀ █▀█ █▀█ █░░ █░░ █▄▄ ▄▀█ █▀█ --
    -- ▄█ █▄▄ █▀▄ █▄█ █▄▄ █▄▄ █▄█ █▀█ █▀▄ --
    -- ================================== --
    local scrollbar_hls = {
      'ScrollbarHandle',
      'ScrollbarCursorHandle',
      'ScrollbarSearchHandle',
      'ScrollbarErrorHandle',
      'ScrollbarWarnHandle',
      'ScrollbarInfoHandle',
      'ScrollbarHintHandle',
      'ScrollbarMiscHandle',
      'ScrollbarGitAddHandle',
      'ScrollbarGitChangeHandle',
      'ScrollbarGitDeleteHandle',
    }
    for _, hl in pairs(scrollbar_hls) do
      vim.api.nvim_set_hl(0, hl, { fg = colors.primary, bg = colors.primary_container })
    end


    -- █░░ █░█ ▄▀█ █░░ █ █▄░█ █▀▀   █░█ █ --
    -- █▄▄ █▄█ █▀█ █▄▄ █ █░▀█ ██▄   █▄█ █ --
    -- ================================== --
    customcat.normal.a.bg = colors.primary
    customcat.normal.a.fg = colors.on_primary
    customcat.normal.b.fg = colors.secondary
    customcat.normal.b.bg = colors.on_secondary
    -- Terminal Mode
    customcat.terminal.a.bg = colors.primary
    customcat.terminal.a.fg = colors.on_primary
    customcat.terminal.b.fg = colors.secondary
    customcat.terminal.b.bg = colors.on_secondary
    -- Others
    customcat.inactive.a.fg = colors.secondary
    customcat.inactive.a.bg = colors.surface_container_highest
    -- Transparent Tabline Fix
    -- Whenever a refresh with SIGUSR1 takes place, lualine fills a weird bg
    -- color in tabline only. Pinpointed the hex to this specific highlight.
    -- 'lualine_transitional_lualine_z_buffers_inactive_to_TabLineFill'
    -- But lualine keeps overriding the highlight.


    -- █▄░█ █▀▀ █▀█ █░█ █ █▀▄▀█   █░█ █ --
    -- █░▀█ ██▄ █▄█ ▀▄▀ █ █░▀░█   █▄█ █ --
    -- ================================ --

    -- Colour Line
    vim.api.nvim_set_hl(0, "CursorLine", { bg = colors.surface_bright })
    vim.api.nvim_set_hl(0, "CursorLineNr", { fg = colors.primary, bold = true })
    vim.api.nvim_set_hl(0, "LineNr", { fg = colors.outline })

    -- Floating Window + Sidebar
    local LITE_FLOAT, DARK_FLOAT = colors.secondary, colors.surface_container_high
    vim.api.nvim_set_hl(0, "NormalFloat", { bg = DARK_FLOAT })
    vim.api.nvim_set_hl(0, "FloatBorder", { fg = LITE_FLOAT, bg = DARK_FLOAT, nocombine = true })
    vim.api.nvim_set_hl(0, "FloatTitle", { fg = LITE_FLOAT, bg = DARK_FLOAT })

    -- Completion Popup Menu
    local LITE_CMP, DARK_CMP = colors.primary, nil
    vim.api.nvim_set_hl(0, "Pmenu", { fg = LITE_CMP, bg = DARK_CMP })
    vim.api.nvim_set_hl(0, "PmenuBorder", { fg = LITE_CMP, bg = DARK_CMP })
    vim.api.nvim_set_hl(0, "PmenuSel", { fg = colors.on_primary, bg = colors.primary, bold = true })

    -- Treesitter
    local DARK_TS = colors.on_secondary
    vim.api.nvim_set_hl(0, "TreesitterContext", { bg = DARK_TS })
    vim.api.nvim_set_hl(0, "TreesitterContextLineNumber", { bg = DARK_TS })
  end

  require 'lualine'.setup { options = { theme = customcat } }
end

if check.is_matugen then
  -- INITIAL LOAD
  Load_dynamic_colors()

  -- HOT RELOAD ON SIGUSR1
  vim.api.nvim_create_autocmd("Signal", {
    pattern = "SIGUSR1",
    callback = function()
      vim.schedule(function()
        Load_dynamic_colors()
      end)
    end
  })
end