vim.g.mapleader = ' '
vim.g.maplocalleader = ' '

vim.opt.tabstop = 4
vim.opt.softtabstop = 4
vim.opt.shiftwidth = 4
vim.opt.expandtab = true
vim.opt.smartindent = true
vim.opt.autoindent = true
vim.opt.background = 'dark'

vim.opt.relativenumber = true
vim.opt.mouse = 'a'

vim.g.copilot_enabled = 0

-- vim.opt.clipboard = 'unnamedplus'
vim.opt.undofile = true

vim.opt.signcolumn = 'yes'
-- vim.opt.foldenable = true
-- vim.opt.foldmethod = "indent"

-- by default split to the right/below
vim.opt.splitright = true
vim.opt.splitbelow = true

vim.cmd.colorscheme 'habamax'

vim.opt.cursorline = true
vim.opt.scrolloff = 10

vim.opt.hlsearch = true

vim.opt.list = true
vim.keymap.set('n', '<leader>m', '<cmd>nohlsearch<CR>')

vim.opt.listchars = { tab = '» ', trail = '·', nbsp = '␣' }

-- vim.opt.wildmenu = true
-- vim.opt.showmatch = true
-- vim.opt.incsearch = true
-- vim.opt.numberwidth = 4
vim.opt.foldenable = true
vim.opt.foldmethod = 'indent'
vim.opt.foldlevelstart = 10
vim.opt.foldnestmax = 10
vim.opt.backspace = 'indent,eol,start'
vim.opt.termguicolors = true

-- Navigation keymaps
vim.keymap.set('i', 'jk', '<Esc>')

-- Diagnostic keymaps
vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, { desc = 'Previous [D]iagnostic message' })
vim.keymap.set('n', ']d', vim.diagnostic.goto_next, { desc = 'Previous [D]iagnostic message' })
vim.keymap.set('n', 'gl', vim.diagnostic.open_float, { desc = 'Show diagnostic' })
vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist, { desc = 'Open diagnostic [Q]uickfix list' })

-- Diagnostics config
local signs = {
  { name = 'DiagnosticSignError', text = '' },
  { name = 'DiagnosticSignWarn', text = '' },
  { name = 'DiagnosticSignHint', text = '' },
  { name = 'DiagnosticSignInfo', text = '' },
}

for _, sign in ipairs(signs) do
  vim.fn.sign_define(sign.name, { texthl = sign.name, text = sign.text, numhl = '' })
end

local config = {
  virtual_text = false,
  signs = {
    active = signs,
  },
  update_in_insert = true,
  underline = true,
  severity_sort = true,
  float = {
    focusable = false,
    style = 'minimal',
    border = 'none',
    -- max_width = 80,
    source = 'always',
    header = '',
    prefix = '',
  },
}
vim.diagnostic.config(config)

-- Window keymaps
--  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' })

vim.keymap.set('n', 'j', 'gj')
vim.keymap.set('n', 'k', 'gk')

-- tab navigation
vim.keymap.set('n', 'H', 'gT')
vim.keymap.set('n', 'L', 'gt')

-- folds
vim.keymap.set('n', '<leader>l', 'za', { desc = 'fold' })
-- copy to clipbaord in visual mode
vim.keymap.set('v', '<C-c>', '"+y')
-- move blocvim.keymap.sets of text visually
vim.keymap.set('v', 'J', ":m '>+1<CR>gv=gv")
vim.keymap.set('v', 'K', ":m '<-2<CR>gv=gv")
-- stay in visual mode while indenting
vim.keymap.set('v', '>', '>gv')
vim.keymap.set('v', '<', '<gv')
vim.keymap.set('n', 'n', 'nzz')
vim.keymap.set('n', '<C-d>', '<C-d>zz')
vim.keymap.set('n', '<C-u>', '<C-u>zz')

-- Launches
vim.keymap.set('n', '<leader>g', ':Neogit<cr>')

local lazypath = vim.fn.stdpath 'data' .. '/lazy/lazy.nvim'
if not vim.loop.fs_stat(lazypath) then
  local lazyrepo = 'https://github.com/folke/lazy.nvim.git'
  vim.fn.system { 'git', 'clone', '--filter=blob:none', '--branch=stable', lazyrepo, lazypath }
end ---@diagnostic disable-next-line: undefined-field
vim.opt.rtp:prepend(lazypath)

require('lazy').setup {
  { 'tpope/vim-sleuth', enabled = false },
  { 'numToStr/Comment.nvim', opts = {} },
  {
    'lewis6991/gitsigns.nvim',
    opts = {
      signs = {
        add = { text = '+' },
        change = { text = '~' },
        delete = { text = '_' },
        topdelete = { text = '‾' },
        changedelete = { text = '~' },
      },
    },
  },
  {
    'folke/which-key.nvim',
    event = 'VimEnter', -- Sets the loading event to 'VimEnter'
    enabled = false,
    config = function() -- This is the function that runs, AFTER loading
      require('which-key').setup()

      -- Document existing key chains
      require('which-key').register {
        ['<leader>c'] = { name = '[C]ode', _ = 'which_key_ignore' },
        ['<leader>d'] = { name = '[D]ocument', _ = 'which_key_ignore' },
        ['<leader>r'] = { name = '[R]ename', _ = 'which_key_ignore' },
        ['<leader>s'] = { name = '[S]earch', _ = 'which_key_ignore' },
        ['<leader>w'] = { name = '[W]orkspace', _ = 'which_key_ignore' },
        ['<leader>t'] = { name = '[T]oggle', _ = 'which_key_ignore' },
        ['<leader>h'] = { name = 'Git [H]unk', _ = 'which_key_ignore' },
      }
      -- visual mode
      require('which-key').register({
        ['<leader>h'] = { 'Git [H]unk' },
      }, { mode = 'v' })
    end,
  },
  {
    'nvim-telescope/telescope.nvim',
    event = 'VimEnter',
    branch = '0.1.x',
    dependencies = {
      'nvim-lua/plenary.nvim',
      { -- If encountering errors, see telescope-fzf-native README for installation instructions
        'nvim-telescope/telescope-fzf-native.nvim',
        -- `build` is used to run some command when the plugin is installed/updated.
        -- This is only run then, not every time Neovim starts up.
        build = 'make',
        -- `cond` is a condition used to determine whether this plugin should be
        -- installed and loaded.
        cond = function()
          return vim.fn.executable 'make' == 1
        end,
      },
      -- TODO
      -- Test later
      -- { 'nvim-telescope/telescope-ui-select.nvim' },
      { 'nvim-tree/nvim-web-devicons' },
    },
    config = function()
      require('telescope').setup {
        pickers = {},
        defaults = {
          mappings = {
            i = {
              ['<Esc>'] = require('telescope.actions').close,
              ['<C-j>'] = require('telescope.actions').move_selection_next,
              ['<C-k>'] = require('telescope.actions').move_selection_previous,
            },
          },
        },
      }
      pcall(require('telescope').load_extension, 'fzf')
      local builtin = require 'telescope.builtin'
      vim.keymap.set('n', '<C-_>', builtin.find_files, { desc = '[S]earch [F]iles' })
      vim.keymap.set('n', '<leader>f', builtin.live_grep, { desc = '[S]earch by [G]rep' })
      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>ss', builtin.builtin, { desc = '[S]earch [S]elect Telescope' })
      vim.keymap.set('n', '<leader>sw', builtin.grep_string, { desc = '[S]earch current [W]ord' })
      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>b', builtin.buffers, { desc = 'Find existing buffers' })
      vim.keymap.set('n', '<leader>sn', function()
        builtin.find_files { cwd = vim.fn.stdpath 'config' }
      end, { desc = '[S]earch [N]eovim files' })
    end,
  },
  {
    'neovim/nvim-lspconfig',
    dependencies = {
      { 'williamboman/mason.nvim', config = true },
      'williamboman/mason-lspconfig.nvim',
      'WhoIsSethDaniel/mason-tool-installer.nvim',
      { 'folke/neodev.nvim', opts = {} },
    },
    config = function()
      vim.api.nvim_create_autocmd('LspAttach', {
        group = vim.api.nvim_create_augroup('lsp-attach-group', { clear = true }),
        callback = function(event)
          local map = function(keys, func, desc)
            vim.keymap.set('n', keys, func, { buffer = event.buf, desc = 'LSP: ' .. desc })
          end

          map('gd', require('telescope.builtin').lsp_definitions, '[G]oto [D]efinition')
          map('gr', require('telescope.builtin').lsp_references, '[G]oto [R]eferences')
          map('gI', require('telescope.builtin').lsp_implementations, '[G]oto [I]mplementation')
          map('<leader>D', require('telescope.builtin').lsp_type_definitions, 'Type [D]efinition')
          map('<leader>ds', require('telescope.builtin').lsp_document_symbols, '[D]ocument [S]ymbols')
          map('<leader>ws', require('telescope.builtin').lsp_dynamic_workspace_symbols, '[W]orkspace [S]ymbols')
          map('<leader>rn', vim.lsp.buf.rename, '[R]e[n]ame')
          map('<leader>ca', vim.lsp.buf.code_action, '[C]ode [A]ction')
          map('K', vim.lsp.buf.hover, 'Hover Documentation')
          map('gD', 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.server_capabilities.documentHighlightProvider 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
        end,
      })
      local capabilities = vim.lsp.protocol.make_client_capabilities()
      -- capabilities = vim.tbl_deep_extend('force', capabilities, require('cmp_nvim_lsp').default_capabilities())

      local servers = {
        pyright = {},
        ruff = {},
        gopls = {},
        jsonls = {},
        terraformls = {},
        tsserver = {},
        -- ccls = {},
        lua_ls = {},
      }
      require('mason').setup()
      -- You can add other tools here that you want Mason to install
      -- for you, so that they are available from within Neovim.
      local ensure_installed = vim.tbl_keys(servers or {})
      vim.list_extend(ensure_installed, {
        'stylua', -- Used to format Lua code
      })
      require('mason-tool-installer').setup { ensure_installed = ensure_installed }

      require('mason-lspconfig').setup {
        handlers = {
          function(server_name)
            local server = servers[server_name] or {}
            -- This handles overriding only values explicitly passed
            -- by the server configuration above. Useful when disabling
            -- certain features of an LSP (for example, turning off formatting for tsserver)
            server.capabilities = vim.tbl_deep_extend('force', {}, capabilities, server.capabilities or {})
            require('lspconfig')[server_name].setup(server)
          end,
        },
      }
    end,
  },
  { -- Autoformat
    'stevearc/conform.nvim',
    lazy = false,
    keys = {
      {
        '<leader>]',
        function()
          require('conform').format { async = true, lsp_fallback = true }
        end,
        mode = '',
        desc = '[F]ormat buffer',
      },
    },
    opts = {
      -- notify_on_error = false,
      format_on_save = function(bufnr)
        -- Disable "format_on_save lsp_fallback" for languages that don't
        -- have a well standardized coding style. You can add additional
        -- languages here or re-enable it for the disabled ones.
        local disable_filetypes = { c = true, cpp = true }
        return {
          timeout_ms = 500,
          lsp_fallback = not disable_filetypes[vim.bo[bufnr].filetype],
        }
      end,
      formatters_by_ft = {
        lua = { 'stylua' },
        python = { 'isort', 'black' },
        -- You can use a sub-list to tell conform to run *until* a formatter
        -- is found.
        -- javascript = { { "prettierd", "prettier" } },
      },
    },
  },
  { -- Autocompletion
    'hrsh7th/nvim-cmp',
    event = 'InsertEnter',
    dependencies = {
      -- Snippet Engine & its associated nvim-cmp source
      {
        'L3MON4D3/LuaSnip',
        build = 'make install_jsregexp',
        dependencies = {
          {
            'rafamadriz/friendly-snippets',
            config = function()
              require('luasnip.loaders.from_vscode').lazy_load()

              require 'snippets'
            end,
          },
        },
      },
      'saadparwaiz1/cmp_luasnip',

      -- Adds other completion capabilities.
      --  nvim-cmp does not ship with all sources by default. They are split
      --  into multiple repos for maintenance purposes.
      'hrsh7th/cmp-nvim-lsp',
      'hrsh7th/cmp-path',
    },
    config = function()
      -- See `:help cmp`
      local cmp = require 'cmp'
      local luasnip = require 'luasnip'
      luasnip.config.setup {}
      local kind_icons = {
        Text = '',
        Method = 'm',
        Function = '',
        Constructor = '',
        Field = '',
        Variable = '',
        Class = '',
        Interface = '',
        Module = '',
        Property = '',
        Unit = '',
        Value = '',
        Enum = '',
        Keyword = '',
        Snippet = '',
        Color = '',
        File = '',
        Reference = '',
        Folder = '',
        EnumMember = '',
        Constant = '',
        Struct = '',
        Event = '',
        Operator = '',
        TypeParameter = '',
      }

      cmp.setup {
        snippet = {
          expand = function(args)
            luasnip.lsp_expand(args.body)
          end,
        },
        completion = { completeopt = 'menu,menuone,noinsert' },

        -- For an understanding of why these mappings were
        -- chosen, you will need to read `:help ins-completion`
        --
        -- No, but seriously. Please read `:help ins-completion`, it is really good!
        mapping = cmp.mapping.preset.insert {
          ['<C-j>'] = cmp.mapping.select_next_item(),
          ['<C-k>'] = cmp.mapping.select_prev_item(),
          ['<C-b>'] = cmp.mapping.scroll_docs(-4),
          ['<C-f>'] = cmp.mapping.scroll_docs(4),
          ['<CR>'] = cmp.mapping.confirm { select = true },
          ['<C-Space>'] = cmp.mapping.complete {},

          -- Think of <c-l> as moving to the right of your snippet expansion.
          --  So if you have a snippet that's like:
          --  function $name($args)
          --    $body
          --  end
          --
          -- <c-l> will move you to the right of each of the expansion locations.
          -- <c-h> is similar, except moving you backwards.
          ['<C-l>'] = cmp.mapping(function()
            if luasnip.expand_or_locally_jumpable() then
              luasnip.expand_or_jump()
            end
          end, { 'i', 's' }),
          ['<C-h>'] = cmp.mapping(function()
            if luasnip.locally_jumpable(-1) then
              luasnip.jump(-1)
            end
          end, { 'i', 's' }),

          -- For more advanced Luasnip keymaps (e.g. selecting choice nodes, expansion) see:
          --    https://github.com/L3MON4D3/LuaSnip?tab=readme-ov-file#keymaps
        },
        formatting = {
          fields = { 'kind', 'abbr', 'menu' },
          expandable_indicator = true,
          format = function(entry, vim_item)
            -- Kind icons
            vim_item.kind = string.format('%s', kind_icons[vim_item.kind])
            -- vim_item.kind = string.format('%s %s', kind_icons[vim_item.kind], vim_item.kind) -- This concatonates the icons with the name of the item kind
            vim_item.menu = ({
              nvim_lsp = '[LSP]',
              luasnip = '[Snippet]',
              buffer = '[Buffer]',
              path = '[Path]',
            })[entry.source.name]
            return vim_item
          end,
        },
        sources = {
          { name = 'nvim_lsp' },
          { name = 'luasnip' },
          { name = 'buffer' },
          { name = 'path' },
        },
      }
    end,
  },
  {
    'echasnovski/mini.nvim',
    config = function()
      -- Examples:
      --  - va)  - [V]isually select [A]round [)]paren
      --  - yinq - [Y]ank [I]nside [N]ext [']quote
      --  - ci'  - [C]hange [I]nside [']quote
      require('mini.ai').setup { 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 = true }

      -- 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
      --  Check out: https://github.com/echasnovski/mini.nvim
    end,
  },
  {
    'nyoom-engineering/oxocarbon.nvim',
    config = function()
      vim.cmd.colorscheme 'oxocarbon'
    end,
  },
  require 'plugins.nvimtree',
  require 'plugins.neogit',
  require 'plugins.lint',
  { 'github/copilot.vim' },
}

-- Need to test
-- vim.opt.ignorecase = true
-- vim.opt.smartcase = true
-- vim.opt.breakindent = true
-- vim.opt.updatetime = 250
-- vim.opt.list = true
-- vim.opt.listchars = { tab = '» ', trail = '·', nbsp = '␣' }