-- ===================================
-- | General Neovim Configuration    |
-- ===================================
-- I won't lie to you, I vibecoded the boilerplate for this stuff.
-- Aside from Emacs, I don't really like having to configure my editors
-- very much. Basic understanding of the config is all I really prioritize.
vim.opt.number = true          -- Show line numbers
vim.opt.relativenumber = true  -- Show relative line numbers
vim.opt.tabstop = 2            -- A tab is 2 spaces
vim.opt.shiftwidth = 2         -- Indent is 2 spaces
vim.opt.expandtab = true       -- Use spaces instead of tabs
vim.opt.termguicolors = true   -- Enable terminal colors
vim.opt.scrolloff = 8          -- Lines above/below cursor
vim.opt.signcolumn = "yes"     -- Always show the sign column
-- Set the leader key to space. This is a crucial step for custom mappings.
vim.g.mapleader = " "
-- ====================================
-- | Plugin Management with lazy.nvim |
-- ====================================
-- The configuration below bootstraps lazy.nvim if it's not already installed.
local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({
    "git", "clone", "--filter=blob:none",
    "https://github.com/folke/lazy.nvim.git", lazypath
  })
end
vim.opt.rtp:prepend(lazypath)
-- Setup the plugins you need.
require("lazy").setup({
  -- Zen mode
  {
    "folke/zen-mode.nvim",
    opts = {
      window = {
        backdrop = .9,
        width = 150,
      }
    }
  },
  -- For background transparency
  { 'xiyaowong/transparent.nvim' },
  -- === The colorscheme plugin is specified here. ===
  -- Gruvbox theme plugin. It will be automatically installed by lazy.nvim.
  { 'ellisonleao/gruvbox.nvim', config = function()
    -- Ensure the background is set to 'dark' for the gruvbox colorscheme.
    vim.o.background = 'dark'
    -- Load the colorscheme.
    vim.cmd.colorscheme("gruvbox")
  end },
  -- Treesitter plugin for syntax highlighting.
  { "nvim-treesitter/nvim-treesitter", build = ":TSUpdate" },
  -- Autocomplete plugins
  { "hrsh7th/nvim-cmp" },
  { "hrsh7th/cmp-nvim-lsp" },
  { "L3MON4D3/LuaSnip" },
  { "neovim/nvim-lspconfig" },
  -- Plugin to automatically close paired characters like (), {}, [], and ""
  { 'echasnovski/mini.pairs' },
  -- File tree and icon plugins
  {
    'nvim-tree/nvim-tree.lua',
    version = '*',
    lazy = false,
    dependencies = {
      'nvim-tree/nvim-web-devicons',
    },
    config = function()
      -- The setup call for the nvim-tree plugin.
      require('nvim-tree').setup {}
    end
  },
})
-- Transparent configuration
require('transparent').setup({
    enable = true,  -- boolean: enable transparent
    extra_groups = {  -- table: additional groups to clear
        'Normal', 'NormalNC', 'Comment', 'Constant', 'Identifier', 
        'Statement', 'PreProc', 'Type', 'Special', 'Underlined', 
        'Todo', 'String', 'Function', 'Conditional', 'Repeat', 
        'Operator', 'Structure', 'LineNr', 'SignColumn', 'EndOfBuffer'
    },
})
-- Autocomplete (cmp) configuration.
local cmp = require("cmp")
cmp.setup({
  snippet = {
    expand = function(args) require("luasnip").lsp_expand(args.body) end,
  },
  mapping = cmp.mapping.preset.insert({
    ["<Tab>"] = cmp.mapping.select_next_item(),
    ["<S-Tab>"] = cmp.mapping.select_prev_item(),
    ["<CR>"] = cmp.mapping.confirm({ select = true }),
  }),
  sources = {
    { name = "nvim_lsp" },
  },
})
-- Mini.pairs configuration.
-- This simple setup is all that's needed for the basic functionality.
require('mini.pairs').setup({})
-- ===================================
-- | Custom Keymaps                  |
-- ===================================
-- Keymaps are custom commands mapped to a specific key combination.
-- The "<leader>" prefix will be replaced with your leader key, which is "space".
-- Split creation keymaps
vim.keymap.set('n', '<leader>sv', ':vsplit<CR>', { desc = 'Create a vertical split' })
vim.keymap.set('n', '<leader>ss', ':split<CR>', { desc = 'Create a horizontal split' })
-- Buffer navigation
-- <leader>bh/j/k/l to navigate between buffers
vim.keymap.set('n', '<leader>bh', ':bprev<CR>', { desc = 'Go to previous buffer' })
vim.keymap.set('n', '<leader>bl', ':bnext<CR>', { desc = 'Go to next buffer' })
-- The following mappings are less common, but fulfill your request.
vim.keymap.set('n', '<leader>bj', ':bnext<CR>', { desc = 'Go to next buffer' })
vim.keymap.set('n', '<leader>bk', ':bprev<CR>', { desc = 'Go to previous buffer' })
-- Split navigation
-- <leader>sh/j/k/l to move between splits
vim.keymap.set('n', '<leader>sh', '<C-w>h', { desc = 'Move to left split' })
vim.keymap.set('n', '<leader>sj', '<C-w>j', { desc = 'Move to split below' })
vim.keymap.set('n', '<leader>sk', '<C-w>k', { desc = 'Move to split above' })
vim.keymap.set('n', '<leader>sl', '<C-w>l', { desc = 'Move to right split' })
-- Normal mode keymaps
-- Save the current file.
vim.keymap.set('n', '<leader>w', ':w<CR>', { desc = 'Save file' })
-- Force quit the current window without saving.
vim.keymap.set('n', '<leader>q', ':q!<CR>', { desc = 'Force quit window' })
-- Save and quit.
vim.keymap.set('n', '<leader>x', ':wq<CR>', { desc = 'Save and quit' })
-- Save all open buffers.
vim.keymap.set('n', '<leader>wa', ':wa<CR>', { desc = 'Save all buffers' })
-- Close all windows except the current one.
vim.keymap.set('n', '<leader>o', ':only<CR>', { desc = 'Close all other windows' })
-- Toggle the file tree.
vim.keymap.set('n', '<leader>e', ':NvimTreeToggle<CR>', { desc = 'Toggle file tree' })
-- Select the entire file content.
vim.keymap.set('n', '<leader>a', 'ggVG', { desc = 'Select entire file' })
-- Various commands to compile different file types.
-- Groff => PDF
vim.keymap.set('n', '<leader>cg', ':!groff -ms -e %:t -T pdf > %:r.pdf<CR>', { desc = 'Compile Groff file to PDF' })
-- Typst => PDF
vim.keymap.set('n', '<leader>ct', ':!typst compile %:t<CR>', { desc = 'Compile Typst file to PDF'} )
-- Keybinding to toggle transparency
vim.api.nvim_set_keymap('n', '<leader>tt', ':TransparentToggle<CR>', { noremap = true, silent = true })