-- ============================================================
-- SECTION 1: FOUNDATION
-- Core Neovim settings, leaders, options, basic keymaps, basic autocmds
-- ============================================================
do
  -- Enable faster startup by caching compiled Lua modules
  vim.loader.enable()
  -- Set <space> as the leader key
  -- See `:help mapleader`
  --  NOTE: Must happen before plugins are loaded (otherwise wrong leader will be used)
  vim.g.mapleader = ' '
  vim.g.maplocalleader = ' '

  -- Set to true if you have a Nerd Font installed and selected in the terminal
  vim.g.have_nerd_font = true

  -- [[ Setting options ]]
  --  See `:help vim.o`
  -- NOTE: You can change these options as you wish!
  --  For more options, you can see `:help option-list`
  -- Make line numbers default
  vim.o.number = true
  -- You can also add relative line numbers, to help with jumping.
  --  Experiment for yourself to see if you like it!
  -- vim.o.relativenumber = true

  vim.o.allowrevins = true

  vim.o.autocompletedelay = 10
  vim.o.autoindent = true
  vim.o.autoread = true
  vim.o.background = 'dark'
  vim.o.backspace = 'indent,eol,start'
  vim.o.wrap = true
  vim.o.linebreak = true
  vim.o.breakat = ' I!@*-+;:,./?'
  vim.o.tabstop = 4
  vim.o.shiftwidth = 4
  vim.o.expandtab = true
  vim.o.smartindent = true
  vim.o.hlsearch = true
  vim.o.incsearch = true
  vim.o.signcolumn = 'yes'
  vim.o.relativenumber = true
  vim.opt.completeopt = { 'menu', 'menuone', 'noselect' }
  vim.o.wildmode = 'longest:full,full'
  vim.o.virtualedit = 'block'
  vim.o.winborder = 'rounded'

  vim.opt.termguicolors = true

  -- Enable mouse mode, can be useful for resizing splits for example!
  vim.o.mouse = 'a'

  -- Don't show the mode, since it's already in the status line
  vim.o.showmode = false

  -- Sync clipboard between OS and Neovim.
  --  Schedule the setting after `UiEnter` because it can increase startup-time.
  --  Remove this option if you want your OS clipboard to remain independent.
  --  See `:help 'clipboard'`
  vim.schedule(function() vim.o.clipboard = 'unnamedplus' end)

  -- Enable break indent
  vim.o.breakindent = true

  -- Enable undo/redo changes even after closing and reopening a file
  vim.o.undofile = true

  -- Case-insensitive searching UNLESS \C or one or more capital letters in the search term
  vim.o.ignorecase = true
  vim.o.smartcase = true

  -- Keep signcolumn on by default
  vim.o.signcolumn = 'yes'

  -- Decrease update time
  vim.o.updatetime = 250

  -- Decrease mapped sequence wait time
  vim.o.timeoutlen = 300

  -- Configure how new splits should be opened
  vim.o.splitright = true
  vim.o.splitbelow = true

  -- Sets how neovim will display certain whitespace characters in the editor.
  --  See `:help 'list'`
  --  and `:help 'listchars'`
  --
  --  Notice listchars is set using `vim.opt` instead of `vim.o`.
  --  It is very similar to `vim.o` but offers an interface for conveniently interacting with tables.
  --   See `:help lua-options`
  --   and `:help lua-guide-options`
  vim.o.list = true
  vim.opt.listchars = { tab = '» ', trail = '·', nbsp = '␣' }

  -- Preview substitutions live, as you type!
  vim.o.inccommand = 'split'

  -- Show which line your cursor is on
  vim.o.cursorline = true

  -- Minimal number of screen lines to keep above and below the cursor.
  vim.o.scrolloff = 5

  -- if performing an operation that would fail due to unsaved changes in the buffer (like `:q`),
  -- instead raise a dialog asking if you wish to save the current file(s)
  -- See `:help 'confirm'`
  vim.o.confirm = true

  -- [[ Basic Keymaps ]]
  --  See `:help vim.keymap.set()`

  -- Clear highlights on search when pressing <Esc> in normal mode
  --  See `:help hlsearch`
  vim.keymap.set('n', '<Esc>', '<cmd>nohlsearch<CR>')

  -- Diagnostic Config & Keymaps
  --  See `:help vim.diagnostic.Opts`
  vim.diagnostic.config {
    update_in_insert = false,
    severity_sort = true,
    float = { border = 'rounded', source = 'if_many' },
    underline = { severity = { min = vim.diagnostic.severity.WARN } },

    -- Can switch between these as you prefer
    virtual_text = true, -- Text shows up at the end of the line
    virtual_lines = false, -- Text shows up underneath the line, with virtual lines

    -- Auto open the float, so you can easily read the errors when jumping with `[d` and `]d`
    jump = {
      on_jump = function(_, bufnr)
        vim.diagnostic.open_float {
          bufnr = bufnr,
          scope = 'cursor',
          focus = false,
        }
      end,
    },
  }

  vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist, { desc = 'Open diagnostic [Q]uickfix list' })

  vim.keymap.set('n', '<left>', '<cmd>echo "Use h to move!!"<CR>')
  vim.keymap.set('n', '<right>', '<cmd>echo "Use l to move!!"<CR>')
  vim.keymap.set('n', '<up>', '<cmd>echo "Use k to move!!"<CR>')
  vim.keymap.set('n', '<down>', '<cmd>echo "Use j to move!!"<CR>')

  -- Keybinds to make split navigation easier.
  --  Use CTRL+<hjkl> to switch between windows
  --
  vim.keymap.set('n', '<C-h>', '<C-w><C-h>', { desc = 'Move focus to the left window' })
  vim.keymap.set('n', '<C-l>', '<C-w><C-l>', { desc = 'Move focus to the right window' })
  vim.keymap.set('n', '<C-j>', '<C-w><C-j>', { desc = 'Move focus to the lower window' })
  vim.keymap.set('n', '<C-k>', '<C-w><C-k>', { desc = 'Move focus to the upper window' })

  -- [[ Basic Autocommands ]]
  --  See `:help lua-guide-autocommands`

  -- Highlight when yanking (copying) text
  --  Try it with `yap` in normal mode
  --  See `:help vim.hl.on_yank()`
  vim.api.nvim_create_autocmd('TextYankPost', {
    desc = 'Highlight when yanking (copying) text',
    group = vim.api.nvim_create_augroup('kickstart-highlight-yank', { clear = true }),
    callback = function() vim.hl.on_yank() end,
  })
end

-- ============================================================
-- SECTION 2: PLUGIN MANAGER INTRO
-- vim.pack intro, build hooks
-- ============================================================
do
  -- [[ Intro to `vim.pack` ]]
  -- `vim.pack` is a new plugin manager built into Neovim,
  --  which provides a Lua interface for installing and managing plugins.
  --
  --  See `:help vim.pack`, `:help vim.pack-examples` or the
  --  excellent blog post from the creator of vim.pack and mini.nvim:
  --  https://echasnovski.com/blog/2026-03-13-a-guide-to-vim-pack
  --
  --  To inspect plugin state and pending updates, run
  --    :lua vim.pack.update(nil, { offline = true })
  --
  --  To update plugins, run
  --    :lua vim.pack.update()
  --
  --
  --  Throughout the rest of the config there will be examples
  --  of how to install and configure plugins using `vim.pack`.
  --
  --  In this section we set up some autocommands to run build
  --  steps for certain plugins after they are installed or updated.

  local function run_build(name, cmd, cwd)
    local result = vim.system(cmd, { cwd = cwd }):wait()
    if result.code ~= 0 then
      local stderr = result.stderr or ''
      local stdout = result.stdout or ''
      local output = stderr ~= '' and stderr or stdout
      if output == '' then output = 'No output from build command.' end
      vim.notify(('Build failed for %s:\n%s'):format(name, output), vim.log.levels.ERROR)
    end
  end

  -- This autocommand runs after a plugin is installed or updated and
  --  runs the appropriate build command for that plugin if necessary.
  --
  -- See `:help vim.pack-events`
  vim.api.nvim_create_autocmd('PackChanged', {
    callback = function(ev)
      local name = ev.data.spec.name
      local kind = ev.data.kind
      if kind ~= 'install' and kind ~= 'update' then return end

      if name == 'telescope-fzf-native.nvim' and vim.fn.executable 'make' == 1 then
        run_build(name, { 'make' }, ev.data.path)
        return
      end

      if name == 'LuaSnip' then
        if vim.fn.has 'win32' ~= 1 and vim.fn.executable 'make' == 1 then run_build(name, { 'make', 'install_jsregexp' }, ev.data.path) end
        return
      end

      if name == 'nvim-treesitter' then
        if not ev.data.active then vim.cmd.packadd 'nvim-treesitter' end
        vim.cmd 'TSUpdate'
        return
      end
    end,
  })
end

---Because most plugins are hosted on GitHub, you can use the helper
---function to have less repetition in the following sections.
---@param repo string
---@return string
local function gh(repo) return 'https://github.com/' .. repo end

-- ============================================================
-- SECTION 3: UI / CORE UX PLUGINS
-- guess-indent, gitsigns, which-key, colorscheme, todo-comments, mini modules
-- ============================================================
do
  -- [[ Installing and Configuring Plugins ]]
  --
  -- To install a plugin simply call `vim.pack.add` with its git url.
  -- This will download the default branch of the plugin, which will usually be `main` or `master`
  -- You can also have more advanced specs, which we will talk about later.
  --
  -- For most plugins its not enough to install them, you also need to call their `.setup()` to start them.
  --
  -- For example, lets say we want to install `guess-indent.nvim` - a plugin for
  -- automatically detecting and setting the indentation.
  --
  -- We first install it from https://github.com/NMAC427/guess-indent.nvim
  -- and then call its `setup()` function to start it with default settings.
  vim.pack.add { gh 'NMAC427/guess-indent.nvim' }
  require('guess-indent').setup {}

  -- Because lua is a real programming language, you can also have some logic to your installation -
  -- like only installing a plugin if a condition is met.
  --
  -- Here we only install `nvim-web-devicons` (which adds pretty icons) if we have a Nerd Font,
  -- since otherwise the icons won't display properly.
  if vim.g.have_nerd_font then vim.pack.add { gh 'nvim-tree/nvim-web-devicons' } end

  -- Here is a more advanced configuration example that passes options to `gitsigns.nvim`
  --
  -- See `:help gitsigns` to understand what each configuration key does.
  -- Adds git related signs to the gutter, as well as utilities for managing changes
  vim.pack.add { gh 'lewis6991/gitsigns.nvim' }
  require('gitsigns').setup {
    signs = {
      add = { text = '+' }, ---@diagnostic disable-line: missing-fields
      change = { text = '~' }, ---@diagnostic disable-line: missing-fields
      delete = { text = '_' }, ---@diagnostic disable-line: missing-fields
      topdelete = { text = '‾' }, ---@diagnostic disable-line: missing-fields
      changedelete = { text = '~' }, ---@diagnostic disable-line: missing-fields
    },
  }

  -- Useful plugin to show you pending keybinds.
  vim.pack.add { gh 'folke/which-key.nvim' }
  require('which-key').setup {
    -- Delay between pressing a key and opening which-key (milliseconds)
    delay = 0,
    icons = { mappings = vim.g.have_nerd_font },
    -- Document existing key chains
    spec = {
      { '<leader>s', group = '[S]earch', mode = { 'n', 'v' } },
      { '<leader>t', group = '[T]oggle' },
      { '<leader>h', group = 'Git [H]unk', mode = { 'n', 'v' } }, -- Enable gitsigns recommended keymaps first
      { 'gr', group = 'LSP Actions', mode = { 'n' } },
    },
  }

  -- [[ Colorscheme ]]
  -- You can easily change to a different colorscheme.
  -- Change the name of the colorscheme plugin below, and then
  -- change the command under that to load whatever the name of that colorscheme is.
  --
  -- If you want to see what colorschemes are already installed, you can use `:Telescope colorscheme`.
  vim.pack.add { gh 'folke/tokyonight.nvim' }
  ---@diagnostic disable-next-line: missing-fields
  require('tokyonight').setup {
    styles = {
      comments = { italic = false }, -- Disable italics in comments
    },
  }

  vim.pack.add { gh 'navarasu/onedark.nvim' }
  require('onedark').setup {
    style = 'deep',
  }
  -- Load the colorscheme here.
  -- Like many other themes, this one has different styles, and you could load
  -- any other, such as 'tokyonight-storm', 'tokyonight-moon', or 'tokyonight-day'.
  vim.cmd.colorscheme 'onedark'

  -- Highlight todo, notes, etc in comments
  vim.pack.add { gh 'folke/todo-comments.nvim' }
  require('todo-comments').setup { signs = false }

  -- [[ mini.nvim ]]
  --  A collection of various small independent plugins/modules
  vim.pack.add { gh 'nvim-mini/mini.nvim' }

  vim.pack.add {
    gh 'nvim-treesitter/nvim-treesitter-textobjects',
  }

  -- Better Around/Inside textobjects
  --
  -- Examples:
  --  - va)  - [V]isually select [A]round [)]paren
  --  - yiiq - [Y]ank [I]nside [I]+1 [Q]uote
  --  - ci'  - [C]hange [I]nside [']quote
  require('mini.ai').setup {
    -- NOTE: Avoid conflicts with the built-in incremental selection mappings on Neovim>=0.12 (see `:help treesitter-incremental-selection`)
    mappings = {
      around_next = 'aa',
      inside_next = 'ii',
    },
    n_lines = 500,
  }

  -- Add/delete/replace surroundings (brackets, quotes, etc.)
  --
  -- - saiw) - [S]urround [A]dd [I]nner [W]ord [)]Paren
  -- - sd'   - [S]urround [D]elete [']quotes
  -- - sr)'  - [S]urround [R]eplace [)] [']
  require('mini.surround').setup()

  -- Simple and easy statusline.
  --  You could remove this setup call if you don't like it,
  --  and try some other statusline plugin
  local statusline = require 'mini.statusline'
  -- Set `use_icons` to true if you have a Nerd Font
  statusline.setup { use_icons = vim.g.have_nerd_font }

  -- You can configure sections in the statusline by overriding their
  -- default behavior. For example, here we set the section for
  -- cursor location to LINE:COLUMN
  ---@diagnostic disable-next-line: duplicate-set-field
  statusline.section_location = function() return '%2l:%-2v' end

  -- ... and there is more!
  --  Check out: https://github.com/nvim-mini/mini.nvim
end

-- ============================================================
-- SECTION 4: SEARCH & NAVIGATION
-- Telescope setup, keymaps, LSP picker mappings
-- ============================================================
do
  -- [[ Fuzzy Finder (files, lsp, etc) ]]
  --
  -- Telescope is a fuzzy finder that comes with a lot of different things that
  -- it can fuzzy find! It's more than just a "file finder", it can search
  -- many different aspects of Neovim, your workspace, LSP, and more!
  --
  -- There are lots of other alternative pickers (like snacks.picker, or fzf-lua)
  -- so feel free to experiment and see what you like!
  --
  -- The easiest way to use Telescope, is to start by doing something like:
  --  :Telescope help_tags
  --
  -- After running this command, a window will open up and you're able to
  -- type in the prompt window. You'll see a list of `help_tags` options and
  -- a corresponding preview of the help.
  --
  -- Two important keymaps to use while in Telescope are:
  --  - Insert mode: <c-/>
  --  - Normal mode: ?
  --
  -- This opens a window that shows you all of the keymaps for the current
  -- Telescope picker. This is really useful to discover what Telescope can
  -- do as well as how to actually do it!

  ---@type (string|vim.pack.Spec)[]
  local telescope_plugins = {
    gh 'nvim-lua/plenary.nvim',
    gh 'nvim-telescope/telescope.nvim',
    gh 'nvim-telescope/telescope-ui-select.nvim',
  }
  if vim.fn.executable 'make' == 1 then table.insert(telescope_plugins, gh 'nvim-telescope/telescope-fzf-native.nvim') end

  -- NOTE: You can install multiple plugins at once
  vim.pack.add(telescope_plugins)

  -- See `:help telescope` and `:help telescope.setup()`
  require('telescope').setup {
    -- You can put your default mappings / updates / etc. in here
    --  All the info you're looking for is in `:help telescope.setup()`
    --
    -- defaults = {
    --   mappings = {
    --     i = { ['<c-enter>'] = 'to_fuzzy_refine' },
    --   },
    -- },
    -- pickers = {}
    extensions = {
      ['ui-select'] = { require('telescope.themes').get_dropdown() },
    },
  }

  -- Enable Telescope extensions if they are installed
  pcall(require('telescope').load_extension, 'fzf')
  pcall(require('telescope').load_extension, 'ui-select')

  -- See `:help telescope.builtin`
  local builtin = require 'telescope.builtin'
  vim.keymap.set('n', '<leader>sh', builtin.help_tags, { desc = '[S]earch [H]elp' })
  vim.keymap.set('n', '<leader>sk', builtin.keymaps, { desc = '[S]earch [K]eymaps' })
  vim.keymap.set('n', '<leader>sf', builtin.find_files, { desc = '[S]earch [F]iles' })
  vim.keymap.set('n', '<leader>ss', builtin.builtin, { desc = '[S]earch [S]elect Telescope' })
  vim.keymap.set({ 'n', 'v' }, '<leader>sw', builtin.grep_string, { desc = '[S]earch current [W]ord' })
  vim.keymap.set('n', '<leader>sg', builtin.live_grep, { desc = '[S]earch by [G]rep' })
  vim.keymap.set('n', '<leader>sd', builtin.diagnostics, { desc = '[S]earch [D]iagnostics' })
  vim.keymap.set('n', '<leader>sr', builtin.resume, { desc = '[S]earch [R]esume' })
  vim.keymap.set('n', '<leader>s.', builtin.oldfiles, { desc = '[S]earch Recent Files ("." for repeat)' })
  vim.keymap.set('n', '<leader>sc', builtin.commands, { desc = '[S]earch [C]ommands' })
  vim.keymap.set('n', '<leader><leader>', builtin.buffers, { desc = '[ ] Find existing buffers' })

  -- Add Telescope-based LSP pickers when an LSP attaches to a buffer.
  -- If you later switch picker plugins, this is where to update these mappings.
  vim.api.nvim_create_autocmd('LspAttach', {
    group = vim.api.nvim_create_augroup('telescope-lsp-attach', { clear = true }),
    callback = function(event)
      local buf = event.buf

      -- Find references for the word under your cursor.
      vim.keymap.set('n', 'grr', builtin.lsp_references, { buffer = buf, desc = '[G]oto [R]eferences' })

      -- Jump to the implementation of the word under your cursor.
      -- Useful when your language has ways of declaring types without an actual implementation.
      vim.keymap.set('n', 'gri', builtin.lsp_implementations, { buffer = buf, desc = '[G]oto [I]mplementation' })

      -- Jump to the definition of the word under your cursor.
      -- This is where a variable was first declared, or where a function is defined, etc.
      -- To jump back, press <C-t>.
      vim.keymap.set('n', 'grd', builtin.lsp_definitions, { buffer = buf, desc = '[G]oto [D]efinition' })

      -- Fuzzy find all the symbols in your current document.
      -- Symbols are things like variables, functions, types, etc.
      vim.keymap.set('n', 'gO', builtin.lsp_document_symbols, { buffer = buf, desc = 'Open Document Symbols' })

      -- Fuzzy find all the symbols in your current workspace.
      -- Similar to document symbols, except searches over your entire project.
      vim.keymap.set('n', 'gW', builtin.lsp_dynamic_workspace_symbols, { buffer = buf, desc = 'Open Workspace Symbols' })

      -- Jump to the type of the word under your cursor.
      -- Useful when you're not sure what type a variable is and you want to see
      -- the definition of its *type*, not where it was *defined*.
      vim.keymap.set('n', 'grt', builtin.lsp_type_definitions, { buffer = buf, desc = '[G]oto [T]ype Definition' })
    end,
  })

  -- Override default behavior and theme when searching
  vim.keymap.set('n', '<leader>/', function()
    -- You can pass additional configuration to Telescope to change the theme, layout, etc.
    builtin.current_buffer_fuzzy_find(require('telescope.themes').get_dropdown {
      winblend = 10,
      previewer = false,
    })
  end, { desc = '[/] Fuzzily search in current buffer' })

  -- It's also possible to pass additional configuration options.
  --  See `:help telescope.builtin.live_grep()` for information about particular keys
  vim.keymap.set(
    'n',
    '<leader>s/',
    function()
      builtin.live_grep {
        grep_open_files = true,
        prompt_title = 'Live Grep in Open Files',
      }
    end,
    { desc = '[S]earch [/] in Open Files' }
  )

  -- Shortcut for searching your Neovim configuration files
  vim.keymap.set('n', '<leader>sn', function() builtin.find_files { cwd = vim.fn.stdpath 'config' } end, { desc = '[S]earch [N]eovim files' })
end

-- ============================================================
-- SECTION 5: LSP
-- LSP keymaps, server configuration, Mason tools installations
-- ============================================================
do
  -- [[ LSP Configuration ]]
  -- Brief aside: **What is LSP?**
  --
  -- LSP is an initialism you've probably heard, but might not understand what it is.
  --
  -- LSP stands for Language Server Protocol. It's a protocol that helps editors
  -- and language tooling communicate in a standardized fashion.
  --
  -- In general, you have a "server" which is some tool built to understand a particular
  -- language (such as `gopls`, `lua_ls`, `rust_analyzer`, etc.). These Language Servers
  -- (sometimes called LSP servers, but that's kind of like ATM Machine) are standalone
  -- processes that communicate with some "client" - in this case, Neovim!
  --
  -- LSP provides Neovim with features like:
  --  - Go to definition
  --  - Find references
  --  - Autocompletion
  --  - Symbol Search
  --  - and more!
  --
  -- Thus, Language Servers are external tools that must be installed separately from
  -- Neovim. This is where `mason` and related plugins come into play.
  --
  -- If you're wondering about lsp vs treesitter, you can check out the wonderfully
  -- and elegantly composed help section, `:help lsp-vs-treesitter`

  -- Useful status updates for LSP.
  vim.pack.add { gh 'j-hui/fidget.nvim' }
  require('fidget').setup {}

  --  This function gets run when an LSP attaches to a particular buffer.
  --    That is to say, every time a new file is opened that is associated with
  --    an lsp (for example, opening `main.rs` is associated with `rust_analyzer`) this
  --    function will be executed to configure the current buffer
  vim.api.nvim_create_autocmd('LspAttach', {
    group = vim.api.nvim_create_augroup('kickstart-lsp-attach', { clear = true }),
    callback = function(event)
      -- NOTE: Remember that Lua is a real programming language, and as such it is possible
      -- to define small helper and utility functions so you don't have to repeat yourself.
      --
      -- In this case, we create a function that lets us more easily define mappings specific
      -- for LSP related items. It sets the mode, buffer and description for us each time.
      local map = function(keys, func, desc, mode)
        mode = mode or 'n'
        vim.keymap.set(mode, keys, func, { buffer = event.buf, desc = 'LSP: ' .. desc })
      end

      -- Rename the variable under your cursor.
      --  Most Language Servers support renaming across files, etc.
      map('grn', vim.lsp.buf.rename, '[R]e[n]ame')

      -- Execute a code action, usually your cursor needs to be on top of an error
      -- or a suggestion from your LSP for this to activate.
      map('gra', vim.lsp.buf.code_action, '[G]oto Code [A]ction', { 'n', 'x' })

      -- WARN: This is not Goto Definition, this is Goto Declaration.
      --  For example, in C this would take you to the header.
      map('grD', vim.lsp.buf.declaration, '[G]oto [D]eclaration')

      -- The following two autocommands are used to highlight references of the
      -- word under your cursor when your cursor rests there for a little while.
      --    See `:help CursorHold` for information about when this is executed
      --
      -- When you move your cursor, the highlights will be cleared (the second autocommand).
      local client = vim.lsp.get_client_by_id(event.data.client_id)
      if client and client:supports_method('textDocument/documentHighlight', event.buf) then
        local highlight_augroup = vim.api.nvim_create_augroup('kickstart-lsp-highlight', { clear = false })
        vim.api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
          buffer = event.buf,
          group = highlight_augroup,
          callback = vim.lsp.buf.document_highlight,
        })

        vim.api.nvim_create_autocmd({ 'CursorMoved', 'CursorMovedI' }, {
          buffer = event.buf,
          group = highlight_augroup,
          callback = vim.lsp.buf.clear_references,
        })

        vim.api.nvim_create_autocmd('LspDetach', {
          group = vim.api.nvim_create_augroup('kickstart-lsp-detach', { clear = true }),
          callback = function(event2)
            vim.lsp.buf.clear_references()
            vim.api.nvim_clear_autocmds { group = 'kickstart-lsp-highlight', buffer = event2.buf }
          end,
        })
      end

      -- The following code creates a keymap to toggle inlay hints in your
      -- code, if the language server you are using supports them
      --
      -- This may be unwanted, since they displace some of your code
      if client and client:supports_method('textDocument/inlayHint', event.buf) then
        map('<leader>th', function() vim.lsp.inlay_hint.enable(not vim.lsp.inlay_hint.is_enabled { bufnr = event.buf }) end, '[T]oggle Inlay [H]ints')
      end
    end,
  })

  -- Enable the following language servers
  --  Feel free to add/remove any LSPs that you want here. They will automatically be installed.
  --  See `:help lsp-config` for information about keys and how to configure
  ---@type table<string, vim.lsp.Config>
  local servers = {
    clangd = {
      cmd = {
        'clangd',
        '--background-index',
        '--clang-tidy',
        '--header-insertion=iwyu',
        '--completion-style=detailed',
      },
    },
    -- gopls = {},
    pyright = {
      settings = {
        python = {
          analysis = {
            typeCheckingMode = 'basic',
          },
        },
      },
    },
    rust_analyzer = {
      settings = {
        ['rust-analyzer'] = {
          cargo = {
            allFeatures = true,
          },

          checkOnSave = true,

          procMacro = {
            enable = true,
          },
        },
      },
    },
    marksman = {},
    cmake = {},
    --
    -- Some languages (like typescript) have entire language plugins that can be useful:
    --    https://github.com/pmizio/typescript-tools.nvim
    --
    -- But for many setups, the LSP (`ts_ls`) will work just fine
    -- ts_ls = {},

    stylua = {}, -- Used to format Lua code

    -- Special Lua Config, as recommended by neovim help docs
    lua_ls = {
      on_init = function(client)
        client.server_capabilities.documentFormattingProvider = false -- Disable formatting (formatting is done by stylua)

        if client.workspace_folders then
          local path = client.workspace_folders[1].name
          if path ~= vim.fn.stdpath 'config' and (vim.uv.fs_stat(path .. '/.luarc.json') or vim.uv.fs_stat(path .. '/.luarc.jsonc')) then return end
        end

        client.config.settings.Lua = vim.tbl_deep_extend('force', client.config.settings.Lua, {
          runtime = {
            version = 'LuaJIT',
            path = { 'lua/?.lua', 'lua/?/init.lua' },
          },
          workspace = {
            checkThirdParty = false,
            -- NOTE: this is a lot slower and will cause issues when working on your own configuration.
            --  See https://github.com/neovim/nvim-lspconfig/issues/3189
            library = vim.tbl_extend('force', vim.api.nvim_get_runtime_file('', true), {
              '${3rd}/luv/library',
              '${3rd}/busted/library',
            }),
          },
        })
      end,
      ---@type lspconfig.settings.lua_ls
      settings = {
        Lua = {
          format = { enable = false }, -- Disable formatting (formatting is done by stylua)
        },
      },
    },
  }

  vim.pack.add {
    gh 'neovim/nvim-lspconfig',
    gh 'mason-org/mason.nvim',
    gh 'mason-org/mason-lspconfig.nvim',
    gh 'WhoIsSethDaniel/mason-tool-installer.nvim',
  }

  -- Automatically install LSPs and related tools to stdpath for Neovim
  require('mason').setup {}

  -- Ensure the servers and tools above are installed
  --
  -- To check the current status of installed tools and/or manually install
  -- other tools, you can run
  --    :Mason
  --
  -- You can press `g?` for help in this menu.
  local ensure_installed = vim.tbl_keys(servers or {})
  vim.list_extend(ensure_installed, {
    -- You can add other tools here that you want Mason to install
  })

  require('mason-tool-installer').setup { ensure_installed = ensure_installed }

  for name, server in pairs(servers) do
    vim.lsp.config(name, server)
    vim.lsp.enable(name)
  end
end

-- ============================================================
-- SECTION 6: FORMATTING
-- conform.nvim setup and keymap
-- ============================================================
do
  -- [[ Formatting ]]
  vim.pack.add { gh 'stevearc/conform.nvim' }
  require('conform').setup {
    notify_on_error = false,
    format_on_save = function(bufnr)
      -- You can specify filetypes to autoformat on save here:
      local enabled_filetypes = {
        lua = true,
        python = true,
        rust = true,
        c = true,
        cpp = true,
        cmake = true,
      }
      if enabled_filetypes[vim.bo[bufnr].filetype] then
        return { timeout_ms = 500 }
      else
        return nil
      end
    end,
    default_format_opts = {
      lsp_format = 'fallback', -- Use external formatters if configured below, otherwise use LSP formatting. Set to `false` to disable LSP formatting entirely.
    },
    -- You can also specify external formatters in here.
    formatters_by_ft = {
      lua = { 'stylua' },
      rust = { 'rustfmt' },
      -- Conform can also run multiple formatters sequentially
      python = { 'isort', 'black' },

      c = { 'clang_format' },
      cpp = { 'clang_format' },
      cmake = { 'cmake_format' },

      markdown = { 'prettier' },
      --
      -- You can use 'stop_after_first' to run the first available formatter from the list
      -- javascript = { "prettierd", "prettier", stop_after_first = true },
    },
  }

  vim.keymap.set({ 'n', 'v' }, '<leader>f', function() require('conform').format { async = true } end, { desc = '[F]ormat buffer' })
end

-- ============================================================
-- SECTION 7: AUTOCOMPLETE & SNIPPETS
-- blink.cmp and luasnip setup
-- ============================================================
do
  -- [[ Snippet Engine ]]

  -- NOTE: You can also specify plugin using a version range for its git tag.
  --  See `:help vim.version.range()` for more info
  vim.pack.add { { src = gh 'L3MON4D3/LuaSnip', version = vim.version.range '2.*' } }
  require('luasnip').setup {}

  -- `friendly-snippets` contains a variety of premade snippets.
  --    See the README about individual language/framework/plugin snippets:
  --    https://github.com/rafamadriz/friendly-snippets
  --
  vim.pack.add { gh 'rafamadriz/friendly-snippets' }
  require('luasnip.loaders.from_vscode').lazy_load()

  -- [[ Autocomplete Engine ]]
  vim.pack.add { { src = gh 'saghen/blink.cmp', version = vim.version.range '1.*' } }
  require('blink.cmp').setup {
    keymap = {
      preset = 'none',

      ['<Tab>'] = {
        'select_next',
        'snippet_forward',
        'fallback',
      },

      ['<S-Tab>'] = {
        'select_prev',
        'snippet_backward',
        'fallback',
      },

      ['<CR>'] = {
        'accept',
        'fallback',
      },

      ['<C-space>'] = { 'show', 'show_documentation', 'hide_documentation' },

      ['<C-e>'] = { 'hide' },
    },

    appearance = {
      -- 'mono' (default) for 'Nerd Font Mono' or 'normal' for 'Nerd Font'
      -- Adjusts spacing to ensure icons are aligned
      nerd_font_variant = 'mono',
    },

    completion = {
      menu = {
        border = 'rounded',
      },
      -- By default, you may press `<c-space>` to show the documentation.
      -- Optionally, set `auto_show = true` to show the documentation after a delay.
      documentation = {
        window = {
          border = 'rounded',
        },
        auto_show = true,
        auto_show_delay_ms = 500,
      },
      ghost_text = {
        enabled = true,
      },
    },

    sources = {
      default = { 'lsp', 'path', 'snippets', 'buffer' },
    },

    snippets = { preset = 'luasnip' },

    -- Blink.cmp includes an optional, recommended rust fuzzy matcher,
    -- which automatically downloads a prebuilt binary when enabled.
    --
    -- By default, we use the Lua implementation instead, but you may enable
    -- the rust implementation via `'prefer_rust_with_warning'`
    --
    -- See `:help blink-cmp-config-fuzzy` for more information
    fuzzy = { implementation = 'lua' },

    -- Shows a signature help window while you type arguments for a function
    signature = { enabled = true },
  }
end

-- ============================================================
-- SECTION 8: TREESITTER
-- Parser installation, syntax highlighting, folds, indentation
-- ============================================================
do
  -- [[ Configure Treesitter ]]
  --  Used to highlight, edit, and navigate code
  --
  --  See `:help nvim-treesitter-intro`

  -- NOTE: You can also specify a branch or a specific commit
  vim.pack.add { { src = gh 'nvim-treesitter/nvim-treesitter', version = 'main' } }

  -- Ensure basic parsers are installed
  local parsers = {
    'bash',
    'c',
    'cpp',
    'rust',
    'python',
    'cmake',
    'markdown',
    'markdown_inline',
    'diff',
    'html',
    'css',
    'javascript',
    'json',
    'yaml',
    'toml',
    'lua',
    'luadoc',
    'markdown',
    'markdown_inline',
    'query',
    'vim',
    'vimdoc',
  }
  require('nvim-treesitter').install(parsers)

  ---@param buf integer
  ---@param language string
  local function treesitter_try_attach(buf, language)
    -- Check if a parser exists and load it
    if not vim.treesitter.language.add(language) then return end
    -- Enable syntax highlighting and other treesitter features
    vim.treesitter.start(buf, language)

    -- Enable treesitter based folds
    -- For more info on folds see `:help folds`
    vim.wo.foldexpr = 'v:lua.vim.treesitter.foldexpr()'
    vim.wo.foldmethod = 'expr'
    vim.opt.foldlevel = 99

    -- Check if treesitter indentation is available for this language, and if so enable it
    -- in case there is no indent query, the indentexpr will fallback to the vim's built in one
    local has_indent_query = vim.treesitter.query.get(language, 'indents') ~= nil

    -- Enable treesitter based indentation
    if has_indent_query then vim.bo.indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()" end
  end

  local available_parsers = require('nvim-treesitter').get_available()
  vim.api.nvim_create_autocmd('FileType', {
    callback = function(args)
      local buf, filetype = args.buf, args.match

      local language = vim.treesitter.language.get_lang(filetype)
      if not language then return end

      local installed_parsers = require('nvim-treesitter').get_installed 'parsers'

      if vim.tbl_contains(installed_parsers, language) then
        -- Enable the parser if it is already installed
        treesitter_try_attach(buf, language)
      elseif vim.tbl_contains(available_parsers, language) then
        -- If a parser is available in `nvim-treesitter`, auto-install it and enable it after the installation is done
        require('nvim-treesitter').install(language):await(function() treesitter_try_attach(buf, language) end)
      else
        -- Try to enable treesitter features in case the parser exists but is not available from `nvim-treesitter`
        treesitter_try_attach(buf, language)
      end
    end,
  })
end

-- ============================================================
-- SECTION 9: OPTIONAL EXAMPLES / NEXT STEPS
-- kickstart.plugins.* examples
-- ============================================================
do
  -- The following comments only work if you have downloaded the kickstart repo, not just copy pasted the
  -- init.lua. If you want these files, they are in the repository, so you can just download them and
  -- place them in the correct locations.

  -- NOTE: Next step on your Neovim journey: Add/Configure additional plugins for Kickstart
  --
  --  Here are some example plugins that I've included in the Kickstart repository.
  --  Uncomment any of the lines below to enable them (you will need to restart nvim).
  --
  require 'kickstart.plugins.debug'
  require 'kickstart.plugins.indent_line'
  require 'kickstart.plugins.lint'
  require 'kickstart.plugins.autopairs'
  require 'kickstart.plugins.neo-tree'
  require 'kickstart.plugins.gitsigns' -- adds gitsigns recommended keymaps

  -- NOTE: You can add your own plugins, configuration, etc from `lua/custom/plugins/*.lua`
  --
  --  Uncomment the following line and add your plugins to `lua/custom/plugins/*.lua` to get going.
  require 'custom.plugins'
end

-- The line beneath this is called `modeline`. See `:help modeline`
-- vim: ts=2 sts=2 sw=2 et