local fn = vim.fn
local install_path = fn.stdpath('data')..'/site/pack/packer/start/packer.nvim'
if fn.empty(fn.glob(install_path)) > 0 then
  packer_bootstrap = fn.system({'git', 'clone', '--depth', '1', 'https://github.com/wbthomason/packer.nvim', install_path})

  -- TODO: Add in downloading of sqlite dll for Windows, here.
end

lsp_client_capabilities = vim.lsp.protocol.make_client_capabilities()

return require('packer').startup(function(use)
  use 'wbthomason/packer.nvim'
  use 'dracula/vim'
  use 'kyazdani42/nvim-web-devicons'
  use {
    'kyazdani42/nvim-tree.lua',
    requires = 'kyazdani42/nvim-web-devicons',
    config = function()
      require('nvim-tree').setup {}
    end
  }
  use 'bryanmylee/vim-colorscheme-icons'

  use {
    'akinsho/bufferline.nvim',
    config = function()
      require('bufferline').setup {
        options = {
          separator_style = 'slant'
        }
      }
    end
  }
  use {
    'NTBBloodbath/galaxyline.nvim',
    config = function()
      require('galaxyline.themes.minimalist')
    end,
    requires = { 'kyazdani42/nvim-web-devicons', opt = true }
  }
  use {
    'tami5/sqlite.lua',
    config = function()
      if vim.fn.has('win32') then
        -- FIXME need to download the sqlite3.dll from sqlite.org and place in config folder
        vim.g.sqlite_clib_path = vim.fn.stdpath('config') .. '/sqlite3.dll'
      end
    end
  }
  use {
    'nvim-telescope/telescope.nvim',
    requires = { 'nvim-lua/plenary.nvim', 'nvim-telescope/telescope-smart-history.nvim' },
    config = function()
      local tele = require('telescope')
      local actions = require('telescope.actions');
      local actions_generate = require('telescope.actions.generate');

      tele.setup{
        defaults = {
          prompt_prefix = " ",
          selection_caret = " ",
          mappings = {
            i = {
              ["<C-Down>"] = actions.cycle_history_next,
              ["<C-Up>"] = actions.cycle_history_prev,
              ["<C-?>"] = actions_generate.which_key {
                name_width = 22,
                max_height = .05,
                mode_width = 0,
                separator = '',
                column_indent = 1,
                line_padding = 0
              }
            },
            n = {
              ["?"] = actions_generate.which_key {
                name_width = 22,
                max_height = .05,
                mode_width = 0,
                separator = '',
                column_indent = 1,
                line_padding = 0,
              }
            }
          },
          history = {
            path = vim.fn.stdpath('data') .. '/databases/telescope_history.sqlite3',
            limit = 100,
          },
          layout_config = {
            horizontal = {
              width = 0.95,
              height = 0.95,
            },
            vertical = {
              width = 0.95,
              height = 0.95,
            }
          }
        }
      }

      tele.load_extension('smart_history')
    end,
  }
  use {
    'nvim-telescope/telescope-smart-history.nvim',
    requires = { 'tami5/sqlite.lua' },
  }
  use 'habamax/vim-godot'
  use 'skywind3000/asyncrun.vim'
  use 'lervag/wiki.vim'
  use 'valloric/listtoggle'
  use {
    'neovim/nvim-lspconfig',
    config = function()
      require('lspconfig').gdscript.setup{
        capabilities = lsp_client_capabilities
      }
    end,
    requires = { 'hrsh7th/cmp-nvim-lsp' }
  }
  use {
    'hrsh7th/cmp-nvim-lsp',
    config = function()
      lsp_client_capabilities = require('cmp_nvim_lsp').update_capabilities(lsp_client_capabilities)
    end
  }
  use 'hrsh7th/cmp-nvim-lua'
  use 'hrsh7th/cmp-emoji'
  use 'hrsh7th/cmp-path'
  use 'hrsh7th/cmp-buffer'
  use {
    'hrsh7th/nvim-cmp',
    config = function()
      local cmp = require 'cmp'
      cmp.setup({
        mapping = {
          ['<C-d>'] = cmp.mapping.scroll_docs(-4),
          ['<C-f>'] = cmp.mapping.scroll_docs(4),
          ['<C-Space>'] = cmp.mapping.complete(),
          ['<C-e>'] = cmp.mapping.close(),
          ['<CR>'] = cmp.mapping.confirm({ select = true }),
          ['<TAB>'] = cmp.mapping.confirm({ select = true })
        },
        sources = {
          { name = 'nvim_lsp' },
          { name = 'buffer' },
          { name = 'emoji' },
          { name = 'path' },
          { name = 'nvim_lua' },
        },
        experimental = {
          ghost_text = true
        }
      })
    end
  }
  use {
    'nvim-treesitter/nvim-treesitter',
    run = function()
      vim.cmd(':TSUpdate')
    end,
    config = function()
      require 'nvim-treesitter.install'.compilers = { 'cl', 'clang' }
    end
  }
  use {
    'onsails/lspkind-nvim',
    config = function()
      require('lspkind').init{}
    end
  }
  use 'lepture/vim-jinja'
  use {
    'neoclide/coc.nvim',
    branch = 'release'
  }
  use 'editorconfig/editorconfig-vim'
end)