---[[

--  NOTE: Must happen before plugins are loaded (otherwise wrong leader will be used)
vim.g.mapleader = ' '
vim.g.maplocalleader = ' '

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
vim.o.relativenumber = 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

vim.schedule(function()
  vim.o.clipboard = 'unnamedplus'
end)

-- Enable break indent
vim.o.breakindent = true
-- Save undo history
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
vim.o.smartindent = true

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

-- Decrease update time
vim.o.updatetime = 150

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

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

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 = 15

vim.o.confirm = true
vim.o.wrap = false
-- [[ Basic Keymaps ]]
--  See `:help vim.keymap.set()`

vim.keymap.set('n', '<Esc>', '<cmd>nohlsearch<CR>')

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

local lsp_show = true
vim.keymap.set('n', '<leader>ul', function()
  lsp_show = not lsp_show

  if lsp_show then
    vim.lsp.handlers['window/showMessage'] = vim.lsp.handlers['window/showMessageDefault']
    print 'LSP messages ON'
  else
    vim.lsp.handlers['window/showMessage'] = function() end
    print 'LSP messages OFF'
  end
end, { desc = 'Toggle LSP messages' })
-- Exit terminal mode in the builtin terminal with a shortcut that is a bit easier
-- for people to discover. Otherwise, you normally need to press <C-\><C-n>, which
-- is not what someone will guess without a bit more experience.
--
-- NOTE: This won't work in all terminal emulators/tmux/etc. Try your own mapping
-- or just use <C-\><C-n> to exit terminal mode
vim.keymap.set('t', '<Esc><Esc>', '<C-\\><C-n>', { desc = 'Exit terminal mode' })

-- Disable plugins
local notify_enabled = true

vim.keymap.set('n', '<leader>un', function()
  notify_enabled = not notify_enabled

  if notify_enabled then
    vim.notify = require 'notify'
  else
    vim.notify = function() end
  end
end, { desc = 'Toggle notifications' })

-- TIP: Disable arrow keys in normal mode
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
--
--  See `:help wincmd` for a list of all window commands
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' })

-- NOTE: Some terminals have colliding keymaps or are not able to send distinct keycodes
-- vim.keymap.set("n", "<C-S-h>", "<C-w>H", { desc = "Move window to the left" })
-- vim.keymap.set("n", "<C-S-l>", "<C-w>L", { desc = "Move window to the right" })
-- vim.keymap.set("n", "<C-S-j>", "<C-w>J", { desc = "Move window to the lower" })
-- vim.keymap.set("n", "<C-S-k>", "<C-w>K", { desc = "Move window to the upper" })

vim.keymap.set('n', '<leader>tw', function()
  vim.wo.wrap = not vim.wo.wrap
  print('Wrap ' .. (vim.wo.wrap and 'enabled' or 'disabled'))
end, { desc = 'Toggle line wrap' })

vim.keymap.set('n', '<leader>tr', function()
  -- Ensure line wrapping is enabled
  if vim.bo.filetype ~= 'markdown' then
    return
  end

  vim.opt_local.wrap = true
  vim.opt_local.linebreak = true

  -- Toggle RenderMarkdown
  vim.cmd 'RenderMarkdown toggle'

  print 'RenderMarkdown enabled with line wrap'
end, { desc = 'Toggle RenderMarkdown + enable wrap' })

vim.keymap.set('n', '<leader>tp', '<cmd>RenderMarkdown preview<CR>', { desc = 'Toggle Render md preview' })
-- [[ Basic Autocommands ]]
--  See `:help lua-guide-autocommands`
--
vim.api.nvim_create_autocmd('FileType', {
  pattern = 'fsharp',
  callback = function()
    vim.opt_local.expandtab = true
    vim.opt_local.tabstop = 4
    vim.opt_local.shiftwidth = 4
    vim.opt_local.softtabstop = 4
  end,
})

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,
})

-- [[ Install `lazy.nvim` plugin manager ]]
--    See `:help lazy.nvim.txt` or https://github.com/folke/lazy.nvim for more info
local lazypath = vim.fn.stdpath 'data' .. '/lazy/lazy.nvim'
if not (vim.uv or vim.loop).fs_stat(lazypath) then
  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
    error('Error cloning lazy.nvim:\n' .. out)
  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
    },
  }

  -- 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 'tokyonight-night'

  -- 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' }

  -- 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 = {},
    -- gopls = {},
    -- pyright = {},
    -- rust_analyzer = {},
    --
    -- 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,
      }
      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 = {
      -- rust = { 'rustfmt' },
      -- Conform can also run multiple formatters sequentially
      -- python = { "isort", "black" },
      --
      -- 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 = {
      -- 'default' (recommended) for mappings similar to built-in completions
      --   <c-y> to accept ([y]es) the completion.
      --    This will auto-import if your LSP supports it.
      --    This will expand snippets if the LSP sent a snippet.
      -- 'super-tab' for tab to accept
      -- 'enter' for enter to accept
      -- 'none' for no mappings
      --
      -- For an understanding of why the 'default' preset is recommended,
      -- you will need to read `:help ins-completion`
      --
      -- No, but seriously. Please read `:help ins-completion`, it is really good!
      --
      -- All presets have the following mappings:
      -- <tab>/<s-tab>: move to right/left of your snippet expansion
      -- <c-space>: Open menu or open docs if already open
      -- <c-n>/<c-p> or <up>/<down>: Select next/previous item
      -- <c-e>: Hide menu
      -- <c-k>: Toggle signature help
      --
      -- See `:help blink-cmp-config-keymap` for defining your own keymap
      preset = 'default',

      -- For more advanced Luasnip keymaps (e.g. selecting choice nodes, expansion) see:
      --    https://github.com/L3MON4D3/LuaSnip?tab=readme-ov-file#keymaps
    },

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

    completion = {
      -- By default, you may press `<c-space>` to show the documentation.
      -- Optionally, set `auto_show = true` to show the documentation after a delay.
      documentation = { auto_show = false, auto_show_delay_ms = 500 },
    },

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

    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', 'diff', 'html', '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'

    -- 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.gitsigns', -- adds gitsigns recommend keymaps

  -- NOTE: The import below can automatically add your own plugins, configuration, etc from `lua/custom/plugins/*.lua`
  --    This is the easiest way to modularize your config.
  --
  --  Uncomment the following line and add your plugins to `lua/custom/plugins/*.lua` to get going.
  { import = 'custom.plugins' },
  { import = 'custom.plugins.themes' },
  --
  -- For additional information with loading, sourcing and examples see `:help lazy.nvim-🔌-plugin-spec`
  -- Or use telescope!
  -- In normal mode type `<space>sh` then write `lazy.nvim-plugin`
  -- you can continue same window with `<space>sr` which resumes last telescope search
}, {
  lockfile = vim.fn.stdpath 'data' .. '/lazy-lock.json',
  ui = {
    -- If you are using a Nerd Font: set icons to an empty table which will use the
    -- default lazy.nvim defined Nerd Font icons, otherwise define a unicode icons table
    icons = vim.g.have_nerd_font and {} or {
      cmd = '⌘',
      config = '🛠',
      event = '📅',
      ft = '📂',
      init = '⚙',
      keys = '🗝',
      plugin = '🔌',
      runtime = '💻',
      require = '🌙',
      source = '📄',
      start = '🚀',
      task = '📌',
      lazy = '💤 ',
    },
  },
})

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

vim.lsp.config('fsautocomplete', {
  cmd = { 'fsautocomplete', '--adaptive-lsp-server-enabled' },

  filetypes = { 'fsharp' },

  root_dir = function(bufnr)
    return vim.fs.root(bufnr, { '*.fsproj', '.git' })
  end,

  settings = {
    FsAutoComplete = {
      LazyProjectWorkspace = true,
      BackgroundAnalysis = false,
      ExternalAutocomplete = false,
      Linter = false,
      UnionCaseStubGeneration = false,
      RecordStubGeneration = false,
      InterfaceStubGeneration = false,
    },
  },

  on_attach = function(client, bufnr)
    client.server_capabilities.semanticTokensProvider = nil
    client.server_capabilities.documentFormattingProvider = false
    client.server_capabilities.documentRangeFormattingProvider = false
  end,
})

vim.lsp.enable 'fsautocomplete'
require 'custom.themes'