--
-- Neovim dotfiles
--
--

local execute = vim.api.nvim_command
local fn = vim.fn

-- Bootstrap package manager
local install_path = fn.stdpath('data')..'/site/pack/packer/opt/packer.nvim'

if fn.empty(fn.glob(install_path)) > 0 then
  execute('!git clone https://github.com/wbthomason/packer.nvim '..install_path)
end

-- Packer configuration is compiled and only needs to be loaded on changes
vim.cmd "packadd packer.nvim"

require('packer').startup(function()
  use {'wbthomason/packer.nvim', opt = true}

  -- General plugins
  use {'tpope/vim-sensible'}
  use {'tpope/vim-repeat'}
  use {'tpope/vim-rsi'}
  use {'sgur/vim-editorconfig'}
  use {'ShikChen/osc52.vim'}
  use {'einfachtoll/didyoumean'}

  use {'tpope/vim-obsession'}
  use {
    'tpope/vim-eunuch',
    cmd = {
      'Remove',
      'Unlink',
      'Move',
      'Rename',
      'Mkdir',
      'Chmod',
      'Find',
      'Locate',
      'SudoEdit',
      'SudoWrite'
    }
  }

  use {'psliwka/vim-smoothie'}

  -- Spelling/autocorrection
  use {'tpope/vim-abolish'}

  -- Git/VCS
  use {'vim-scripts/gitignore'}
  use {'sjl/splice.vim', opt = true, cmd = {'SpliceInit'}}
  use {'tpope/vim-git'}

  -- Comments
  use {'b3nj5m1n/kommentary'}

  -- Undoing
  use {'sjl/gundo.vim', cmd = {'GundoToggle'}}

  -- Parentheses etc
  use {'tpope/vim-surround'}
  use {'raimondi/delimitMate'}

  -- Moving around within lines
  use {'wellle/targets.vim', event = 'InsertEnter *'}

  -- Peek at lines
  use {
    'nacro90/numb.nvim',
    config = function () require'numb'.setup() end,
  }

  -- Searching
  use {'mhinz/vim-grepper', cmd = {'Grepper'}}

  -- Keymaps TODO: to be removed when #13823 is merged
  use {
    'tjdevries/astronauta.nvim',
    config = function() require'astronauta.keymap' end,
  }

  -- Indent lines
  use {
    'lukas-reineke/indent-blankline.nvim',
    branch = 'lua',
    config = function ()
      vim.g.indent_blankline_buftype_exclude = {'terminal', 'help', 'nofile'}
      vim.g.indent_blankline_show_first_indent_level = false
    end,
  }

  -- Increment/decrement
  use {
    'zegervdv/nrpattern.nvim',
    requires = 'tpope/vim-repeat',
    config = function ()
      local nrpattern = require"nrpattern"
      local defaults = require"nrpattern.default"

      defaults[{"input", "output"}] = {
        priority = 12,
        filetypes = {"verilog", "systemverilog"},
      }
      defaults[{"'1", "'0"}] = {
        priority = 9,
        filetypes = {"verilog", "systemverilog"},
      }

      nrpattern.setup(defaults)
    end,
  }

  -- Tmux
  function test_tmux()
    return os.getenv('TMUX') ~= nil
  end
  use {'tmux-plugins/vim-tmux-focus-events', cond = test_tmux}
  use {
    'numtostr/navigator.nvim',
    config = function()
      require('Navigator').setup { auto_save = 'current', disable_on_zoom = true }

      local nnoremap = vim.keymap.nnoremap
      nnoremap { '<c-h>', require'Navigator'.left, silent = true }
      nnoremap { '<c-j>', require'Navigator'.down, silent = true }
      nnoremap { '<c-k>', require'Navigator'.up, silent = true }
      nnoremap { '<c-l>', require'Navigator'.right, silent = true }
    end,
  }

  -- Completion/snippets/LSP
  use {'neovim/nvim-lspconfig'}
  use {
    'hrsh7th/nvim-compe',
    config = function ()
      require'compe'.setup {
        enabled = true;
        autocomplete = true;
        debug = false;
        min_length = 1;
        preselect = 'enable';
        throttle_time = 80;
        source_timeout = 1000;
        incomplete_delay = 400;
        max_abbr_width = 100;
        max_kind_width = 100;
        max_menu_width = 100;
        documentation = true;

        source = {
          path = true;
          buffer = true;
          nvim_lsp = true;
          nvim_lua = true;
          spell = true;
          ultisnips = true;
          -- TODO add vsnip for LSP snippets
        };
      }

      vim.cmd [[ inoremap <silent><expr> <C-y> compe#complete() ]]
      vim.cmd [[ inoremap <silent><expr> <CR>      compe#confirm({ 'keys': "\<Plug>delimitMateCR", 'mode': '' }) ]]
      vim.cmd [[ inoremap <silent><expr> <C-e>     compe#close('<C-e>') ]]
    end
  }
  use {
    {
      'nvim-treesitter/nvim-treesitter',
      config = function ()
        require "nvim-treesitter.highlight"

        require'nvim-treesitter.configs'.setup {
          highlight = {
            enable = false,
          },
          incremental_selection = {
            enable = true,
            keymaps = {
              init_selection = "gnn",
              node_incremental = "grn",
              scope_incremental = "grc",
              node_decremental = "grm",
            }
          },
          refactor = {
            highlight_definitions = { enable = true },
            smart_rename = {
              enable = true,
              keymaps = {
                smart_rename = "gsr",
              },
            },
            navigation = {
              enable = true,
              keymaps = {
                goto_definition = "gnd",
                list_definitions = "gnD",
              },
            },
          },
          textobjects = {
            move = {
              enable = true,
              goto_next_start = {
                ["]]"] = "@block.outer",
              },
              goto_previous_start = {
                ["[["] = "@block.outer",
              },
              goto_next_end = {
                ["]["] = "@block.outer",
              },
              goto_previous_end = {
                ["[]"] = "@block.outer",
              },
            },
          },
          playground = {
            enable = true,
            disable = {},
            updatetime = 25,
            persist_queries = false
          }
        }
      end
    },
    'nvim-treesitter/nvim-treesitter-refactor',
    'nvim-treesitter/nvim-treesitter-textobjects',
    {'nvim-treesitter/playground', opt = true},
  }
  use {'SirVer/ultisnips'}
  use {
    'glepnir/lspsaga.nvim',
    config = function()
      require 'lspsaga'.init_lsp_saga {}
    end,
  }
  use {
    'nvim-telescope/telescope.nvim',
    requires = {
      'nvim-lua/popup.nvim',
      'nvim-lua/plenary.nvim',
    },
  }

  -- Vanity
  use {
    'yamatsum/nvim-web-nonicons',
    requires = 'kyazdani42/nvim-web-devicons',
    config = function() require'nvim-nonicons' end,
  }

  use {
    'glepnir/galaxyline.nvim',
    branch = 'main',
    -- your statusline
    config = function() 
      local gl = require'galaxyline'
      local colors = require('galaxyline.theme').default
      local condition = require('galaxyline.condition')
      local gls = gl.section

      colors.bg = '#2C323C'

      gls.left[1] = {
        RainbowRed = {
          provider = function() return '▊ ' end,
          highlight = {colors.blue,colors.bg}
        },
      }

      gls.left[2] = {
        FileIcon = {
          provider = 'FileIcon',
          condition = condition.buffer_not_empty,
          highlight = {require('galaxyline.provider_fileinfo').get_file_icon_color, colors.bg},
        },
      }

      gls.left[3] = {
        FileName = {
          provider = 'FileName',
          condition = condition.buffer_not_empty,
          highlight = {colors.magenta,colors.bg,'bold'}
        }
      }


      gls.left[4] = {
        DiagnosticError = {
          provider = 'DiagnosticError',
          icon = '  ',
          highlight = {colors.red,colors.bg}
        }
      }

      gls.right[1] = {
        ShowLspClient = {
          provider = 'GetLspClient',
          condition = function ()
            local tbl = {['dashboard'] = true,['']=true}
            if tbl[vim.bo.filetype] then
              return false
            end
            return true
          end,
          icon = require'nvim-nonicons'.get('server') .. ' LSP:',
          highlight = {colors.green,colors.bg,'bold'}
        }
      }

      gls.right[2] = {
        LineInfo = {
          provider = 'LineColumn',
          separator = ' ',
          separator_highlight = {'NONE',colors.bg},
          highlight = {colors.fg,colors.bg},
        },
      }

      gls.right[3] = {
        PerCent = {
          provider = 'LinePercent',
          separator = ' ',
          separator_highlight = {'NONE',colors.bg},
          highlight = {colors.fg,colors.bg,'bold'},
        }
      }
      gls.right[8] = {
        RainbowBlue = {
          provider = function() return ' ▊' end,
          highlight = {colors.blue,colors.bg}
        },
      }

      gls.short_line_left[1] = {
        BufferType = {
          provider = 'FileTypeName',
          separator = ' ',
          separator_highlight = {'NONE',colors.bg},
          highlight = {colors.blue,colors.bg,'bold'}
        }
      }

      gls.short_line_left[2] = {
        SFileName = {
          provider =  'SFileName',
          condition = condition.buffer_not_empty,
          highlight = {colors.fg,colors.bg,'bold'}
        }
      }

      gls.short_line_right[1] = {
        BufferIcon = {
          provider= 'BufferIcon',
          highlight = {colors.fg,colors.bg}
        }
      }
    end,
  }

  -- File navigation
  use {'justinmk/vim-dirvish'}

  -- Colorscheme
  use {
    'zegervdv/one-lush',
    requires = 'rktjmp/lush.nvim',
    config = function()
      local lush = require('lush')
      local spec = require('lush_theme.one-lush')
      lush(spec)
    end,
  }

  -- Terminal
  use {
    'akinsho/nvim-toggleterm.lua',
    config = function()
      require'toggleterm'.setup {
        size = 20,
        open_mapping = [[<F12>]],
        shade_filetypes = {},
        shade_terminals = true,
        persist_size = true,
        direction = 'horizontal',
      }
    end,
  }

  -- Filetypes
  use {'Glench/Vim-Jinja2-Syntax'}

end)

-- LSP config

local lsp = require'lspconfig'
local lsputil = require'lspconfig.util'

local on_attach = function(client)
  local nnoremap = vim.keymap.nnoremap
  local inoremap = vim.keymap.inoremap
  nnoremap { '<CR>',   require"lspsaga.diagnostic".show_line_diagnostics, silent = true }
  nnoremap { 'gd',     vim.lsp.buf.declaration, silent = true }
  nnoremap { '<c-]>',  vim.lsp.buf.definition, silent = true }
  nnoremap { 'K',      require'lspsaga.hover'.render_hover_doc, silent = true }
  nnoremap { 'gD',     vim.lsp.buf.implementation, silent = true }
  nnoremap { '1gD',    vim.lsp.buf.type_definition, silent = true }
  nnoremap { 'gr',     vim.lsp.buf.references, silent = true }
  nnoremap { 'tgr',    require'telescope.builtin'.lsp_references, silent = true }
  nnoremap { 'g0',     vim.lsp.buf.document_symbol, silent = true }
  nnoremap { '<c-p>',  vim.lsp.buf.formatting, silent = true }
  nnoremap { 'gp',     require'lspsaga.provider'.preview_definition, silent = true }

  inoremap { '<c-l>',  vim.lsp.buf.signature_help, silent = true}
end


vim.lsp.handlers["textDocument/formatting"] = function(err, _, result, _, bufnr)
  if err ~= nil or result == nil then
    return
  end
  if not vim.api.nvim_buf_get_option(bufnr, "modified") then
    local view = vim.fn.winsaveview()
    vim.lsp.util.apply_text_edits(result, bufnr)
    -- Fix to reload Treesitter
    -- vim.api.nvim_command("edit")
    vim.fn.winrestview(view)
  end
end

vim.lsp.handlers["textDocument/publishDiagnostics"] = function(...)
  vim.lsp.with(vim.lsp.diagnostic.on_publish_diagnostics, {
    underline = true,
    update_in_insert = false
  })(...)
end

lsp.pyright.setup{
  on_attach = on_attach;
}

if (vim.fn.executable('efm-langserver') == 1) then
  require 'efm/python'
  require 'efm/lua'

  -- May not be installed, use pcall to handle errors
  -- pcall(require, 'efm/systemverilog')
  pcall(require, 'efm/flp')

  local language_cfg = require'efm/languages'

  local filetypes = {}
  for lang, _ in pairs(language_cfg) do
    table.insert(filetypes, lang)
  end

  lsp.efm.setup{
    on_attach = on_attach,
    filetypes = filetypes,
    init_options = {documentFormatting = true},
    root_dir = lsputil.root_pattern('.git', '.hg'),
    settings = {
      rootMarkers = {".git/", ".hg/"},
      languages = language_cfg
    },
  }
end

-- Try importing local config
local ok, localconfig = pcall(require, 'localconfig')
if ok then
  localconfig.setup {on_attach=on_attach}
end