local Plug = vim.fn['plug#']

vim.call('plug#begin')

Plug 'nvim-tree/nvim-web-devicons'
Plug 'nvim-tree/nvim-tree.lua'

Plug 'williamboman/mason.nvim'
Plug 'williamboman/mason-lspconfig.nvim'
Plug 'neovim/nvim-lspconfig'

Plug 'hrsh7th/cmp-nvim-lsp'
Plug 'hrsh7th/cmp-buffer'
Plug 'hrsh7th/cmp-path'
Plug 'hrsh7th/cmp-cmdline'
Plug 'hrsh7th/nvim-cmp'

vim.call('plug#end')

vim.g.loaded_netrw = 1
vim.g.loaded_netrwPlugin = 1

require("mason").setup()
require("mason-lspconfig").setup({
    ensure_installed = {"ts_ls"}
})
require("nvim-tree").setup({
  filters = {
    dotfiles = false,
  },
  git = {
    ignore = false,
  }
})

require("lspconfig").ts_ls.setup {}

vim.opt.number = true
vim.opt.swapfile = true
vim.opt.autoindent = true
vim.opt.shiftwidth = 4
vim.opt.confirm = true

local cmp = require'cmp'

cmp.setup({
  snippet = {
    -- REQUIRED - you must specify a snippet engine
    expand = function(args)
    vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
    -- vim.snippet.expand(args.body) -- For native neovim snippets (Neovim v0.10+)

    -- For `mini.snippets` users:
    -- local insert = MiniSnippets.config.expand.insert or MiniSnippets.default_insert
    -- insert({ body = args.body }) -- Insert at cursor
    -- cmp.resubscribe({ "TextChangedI", "TextChangedP" })
    -- require("cmp.config").set_onetime({ sources = {} })
    end,
  },
  window = {
  -- completion = cmp.config.window.bordered(),
  -- documentation = cmp.config.window.bordered(),
  },
  mapping = cmp.mapping.preset.insert({
    ['<C-b>'] = cmp.mapping.scroll_docs(-4),
    ['<C-f>'] = cmp.mapping.scroll_docs(4),
    ['<C-Space>'] = cmp.mapping.complete(),
    ['<C-e>'] = cmp.mapping.abort(),
    ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
  }),
  sources = cmp.config.sources({
    { name = 'nvim_lsp' },
    { name = 'vsnip' }, -- For vsnip users.
    -- { name = 'luasnip' }, -- For luasnip users.
    -- { name = 'ultisnips' }, -- For ultisnips users.
    -- { name = 'snippy' }, -- For snippy users.
  }, {
      { name = 'buffer' },
    })
})

-- To use git you need to install the plugin petertriho/cmp-git and uncomment lines below
-- Set configuration for specific filetype.
--[[ cmp.setup.filetype('gitcommit', {
    sources = cmp.config.sources({
      { name = 'git' },
    }, {
      { name = 'buffer' },
    })
 })
 require("cmp_git").setup() ]]-- 

-- Use buffer source for `/` and `?` (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline({ '/', '?' }, {
  mapping = cmp.mapping.preset.cmdline(),
  sources = {
    { name = 'buffer' }
  }
})

-- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline(':', {
  mapping = cmp.mapping.preset.cmdline(),
  sources = cmp.config.sources({
    { name = 'path' }
  }, {
    { name = 'cmdline' }
  }),
  matching = { disallow_symbol_nonprefix_matching = false }
})

-- Set up lspconfig.
local capabilities = require('cmp_nvim_lsp').default_capabilities()
-- Replace <YOUR_LSP_SERVER> with each lsp server you've enabled.
require('lspconfig')['ts_ls'].setup {
  capabilities = capabilities
}

-- set space as leader keymap
vim.keymap.set('n', ' ', '<Nop>', {noremap = true, silent = true})
vim.g.mapleader = ' '
vim.keymap.set('n', '<leader>x', ':NvimTreeToggle<CR>', {noremap = true, silent = true})
vim.keymap.set('n', '<leader>n', ':bnext<CR>', {noremap = true, silent = true})
vim.keymap.set('n', '<leader>p', ':bprevious<CR>', {noremap = true, silent = true})
vim.keymap.set('n', '<leader>d', ':bdelete<CR>', {noremap = true, silent = true})

vim.opt.statuscolumn = "%s %l %r "
vim.o.rnu=true

local treeApi = require("nvim-tree.api")

-- Close the tree when a new buffer is opened
vim.api.nvim_create_autocmd("BufEnter", {
    callback = function()
	if (vim.fn.bufname() == "NvimTree_1") then return end
	treeApi.tree.close()
    end,
})