set nocompatible " stops wack stuff
set wildmenu " better command line completion
set showmode " show editing mode
set showcmd " show partial commands
set encoding=UTF-8
set title

" spellcheck
set spelllang=en,fr,de,cjk
set spellsuggest=best,9
nnoremap <silent> <F11> :set spell!<cr>
inoremap <silent> <F11> <C-O>:set spell!<cr>

" use case-insensitive search except when using capitals
set ignorecase
set smartcase

set backspace=indent,eol,start " Allow backspacing over autoindent, line breaks and start of insert action
set nostartofline " stop certain things from going to first character in line
set ruler " display cursor position
set confirm " ask to save stuff before failed command
set visualbell " visual indicator instead of beep
set t_vb= " reset terminal code for visual bell

set cmdheight=2 " set command window height to 2 lines
set number " display line numbers
set notimeout ttimeout ttimeoutlen=200 " timeout on keycodes but not mappings

" Indentation Stuff
set shiftwidth=4
set tabstop=4
set autoindent " keep indent of file or smth

" Use <Tab> and <S-Tab> to navigate through pop-up menu
inoremap <expr> <Tab>   pumvisible() ? "\<C-n>" : "\<Tab>"
inoremap <expr> <S-Tab> pumvisible() ? "\<C-p>" : "\<S-Tab>"

nnoremap f <cmd>NERDTreeToggle<cr>
nnoremap t <cmd>ToggleTerm<cr>

set lazyredraw

" auto-indenting
if has('filetype')
  filetype indent plugin on
endif

" syntax highlighting
if has('syntax')
  syntax on
endif

" latex config
let g:tex_flavor  = 'latex'
let g:tex_conceal = ''
"let g:vimtex_fold_manual = 1
"let g:vimtex_latexmk_continuous = 1
"let g:vimtex_compiler_progname = 'nvr'

" Plugins will be downloaded under the specified directory.
call plug#begin(has('nvim') ? stdpath('data') . '/plugged' : '~/.vim/plugged')

" Declare the list of plugins.

" Theme
Plug 'catppuccin/nvim', {'as': 'catppuccin'}

" Statusline plugin
Plug 'feline-nvim/feline.nvim', { 'branch': 'develop' }

" Misc
Plug 'glepnir/dashboard-nvim' " startup dashboard
Plug 'kyazdani42/nvim-web-devicons' " icons!

Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'} " better syntax highlighting
Plug 'lewis6991/spellsitter.nvim' " treesitter for spelling

Plug 'akinsho/toggleterm.nvim' " better terminal support

Plug 'alaviss/nim.nvim' " nim language support
Plug 'HiPhish/guile.vim' " guile language support
Plug 'karolbelina/uxntal.vim' " uxn language support

Plug 'junegunn/fzf', { 'do': { -> fzf#install() } } " searching
Plug 'junegunn/fzf.vim'

Plug 'tpope/vim-commentary' " commenting tool
Plug 'rrethy/vim-hexokinase', { 'do': 'make hexokinase' } " show colours
"Plug 'folke/trouble.nvim'

" git signs
Plug 'nvim-lua/plenary.nvim'
Plug 'lewis6991/gitsigns.nvim'

" LaTeX
"Plug 'lervag/vimtex'
Plug 'Konfekt/FastFold' " speeds or folding or smth
Plug 'matze/vim-tex-fold'

" rust-lsp configuration
Plug 'neovim/nvim-lspconfig'
Plug 'hrsh7th/nvim-cmp' " completion framework
Plug 'hrsh7th/cmp-nvim-lsp' " LSP completion source for nvim-cmp
Plug 'hrsh7th/cmp-vsnip' " snippet completion source for nvim-cmp
Plug 'hrsh7th/cmp-path' " other usefull completion sources
Plug 'hrsh7th/cmp-buffer'
Plug 'simrat39/rust-tools.nvim'
Plug 'hrsh7th/vim-vsnip' " snippet engine
" Plug 'nvim-lua/lsp_extensions.nvim'

" File tree
Plug 'preservim/nerdtree'
Plug 'Xuyuanp/nerdtree-git-plugin' " git status icons
"Plug 'ryanoasis/vim-devicons'
Plug 'tiagofumo/vim-nerdtree-syntax-highlight' " syntax highlighting?
Plug 'ryanoasis/vim-devicons'  " icons

" Optional dependencies
Plug 'nvim-lua/popup.nvim'
" Plug 'nvim-telescope/telescope.nvim'

call plug#end()

" Set colour scheme
autocmd vimenter * ++nested colorscheme catppuccin
colorscheme catppuccin

let g:Hexokinase_highlighters = ['sign_column']

" Setup plugins
lua require('feline').setup({components = require('catppuccin.core.integrations.feline'),})
lua require('gitsigns').setup()
lua require('spellsitter').setup()
lua require("toggleterm").setup{}

" Default value is clap
let g:dashboard_default_executive ='fzf'
let g:dashboard_preview_command = 'cat'
let g:dashboard_preview_pipeline = 'lolcat'
let g:dashboard_preview_file = '~/.config/nvim/neovim.cat'
let g:dashboard_preview_file_height = 16
let g:dashboard_preview_file_width = 33

" trouble config
" seems to be broken rn? 
" lua require("trouble").setup()

lua <<EOF
require'nvim-web-devicons'.setup {
 -- your personnal icons can go here (to override)
 -- you can specify color or cterm_color instead of specifying both of them
 -- DevIcon will be appended to `name`
 override = {
  zsh = {
    icon = "",
    color = "#428850",
    cterm_color = "65",
    name = "Zsh"
  }
 };
 -- globally enable default icons (default to false)
 -- will get overriden by `get_icons` option
 default = true;
}
EOF

" Setup treesitter
lua <<EOF
require'nvim-treesitter.configs'.setup {
  -- One of "all", "maintained" (parsers with maintainers), or a list of languages
  ensure_installed = "maintained",

  -- Install languages synchronously (only applied to `ensure_installed`)
  sync_install = true,

  -- List of parsers to ignore installing
  ignore_install = { "javascript", "typescript" },

  highlight = {
    -- `false` will disable the whole extension
    enable = true,

    -- list of language that will be disabled

    -- Setting this to true will run `:h syntax` and tree-sitter at the same time.
    -- Set this to `true` if you depend on 'syntax' being enabled (like for indentation).
    -- Using this option may slow down your editor, and you may see some duplicate highlights.
    -- Instead of true it can also be a list of languages
    additional_vim_regex_highlighting = false,
  },
}
EOF

" Rust LSP setup based on https://sharksforarms.dev/posts/neovim-rust/

" Set completeopt to have a better completion experience
" :help completeopt
" menuone: popup even when there's only one match
" noinsert: Do not insert text until a selection is made
" noselect: Do not select, force user to select one from the menu
set completeopt=menuone,noinsert,noselect

" Avoid showing extra messages when using completion
set shortmess+=c


" Configure LSP through rust-tools.nvim plugin.
" rust-tools will configure and enable certain LSP features for us.
" See https://github.com/simrat39/rust-tools.nvim#configuration
lua <<EOF
local nvim_lsp = require'lspconfig'

local opts = {
    tools = { -- rust-tools options
        autoSetHints = true,
        hover_with_actions = true,
        inlay_hints = {
            show_parameter_hints = false,
            parameter_hints_prefix = "",
            other_hints_prefix = "",
        },
    },

    -- all the opts to send to nvim-lspconfig
    -- these override the defaults set by rust-tools.nvim
    -- see https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md#rust_analyzer
    server = {
        -- on_attach is a callback called when the language server attachs to the buffer
        -- on_attach = on_attach,
        settings = {
            -- to enable rust-analyzer settings visit:
            -- https://github.com/rust-analyzer/rust-analyzer/blob/master/docs/user/generated_config.adoc
            ["rust-analyzer"] = {
                -- enable clippy on save
                checkOnSave = {
                    command = "clippy"
                },
            }
        }
    },
}

require('rust-tools').setup(opts)
-- Use a loop to conveniently call 'setup' on multiple servers and
-- map buffer local keybindings when the language server attaches
local servers = { 'pylsp', 'asm_lsp', 'gdscript' }
for _, lsp in pairs(servers) do
	require('lspconfig')[lsp].setup {
		on_attach = on_attach,
		flags = {
			-- This will be the default in neovim 0.7+
			debounce_text_changes = 150,
		}
	}
end
EOF

" Setup Completion
" See https://github.com/hrsh7th/nvim-cmp#basic-configuration
lua <<EOF
local cmp = require'cmp'
cmp.setup({
  -- Enable LSP snippets
  snippet = {
    expand = function(args)
        vim.fn["vsnip#anonymous"](args.body)
    end,
  },
  mapping = {
    ['<C-p>'] = cmp.mapping.select_prev_item(),
    ['<C-n>'] = cmp.mapping.select_next_item(),
    -- Add tab support
    ['<S-Tab>'] = cmp.mapping.select_prev_item(),
    ['<Tab>'] = cmp.mapping.select_next_item(),
    ['<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({
      behavior = cmp.ConfirmBehavior.Insert,
      select = true,
    })
  },

  -- Installed sources
  sources = {
    { name = 'nvim_lsp' },
    { name = 'vsnip' },
    { name = 'path' },
    { name = 'buffer' },
  },
})
EOF

" Code navigation shortcuts
nnoremap <silent> <c-]> <cmd>lua vim.lsp.buf.definition()<CR>
nnoremap <silent> K     <cmd>lua vim.lsp.buf.hover()<CR>
nnoremap <silent> gD    <cmd>lua vim.lsp.buf.implementation()<CR>
nnoremap <silent> <c-k> <cmd>lua vim.lsp.buf.signature_help()<CR>
nnoremap <silent> 1gD   <cmd>lua vim.lsp.buf.type_definition()<CR>
nnoremap <silent> gr    <cmd>lua vim.lsp.buf.references()<CR>
nnoremap <silent> g0    <cmd>lua vim.lsp.buf.document_symbol()<CR>
nnoremap <silent> gW    <cmd>lua vim.lsp.buf.workspace_symbol()<CR>
nnoremap <silent> gd    <cmd>lua vim.lsp.buf.definition()<CR>
nnoremap <silent> ga    <cmd>lua vim.lsp.buf.code_action()<CR>

" Set updatetime for CursorHold
" 300ms of no cursor movement to trigger CursorHold
set updatetime=300
" Show diagnostic popup on cursor hold
autocmd CursorHold * lua vim.diagnostic.open_float(nil, { focusable = false })

" Goto previous/next diagnostic warning/error
nnoremap <silent> g[ <cmd>lua vim.diagnostic.goto_prev()<CR>
nnoremap <silent> g] <cmd>lua vim.diagnostic.goto_next()<CR>
" have a fixed column for the diagnostics to appear in
" this removes the jitter when warnings/errors flow in
set signcolumn=yes
" Auto-format *.rs (rust) files prior to saving them
autocmd BufWritePre *.rs lua vim.lsp.buf.formatting_sync(nil, 1000)

" Terminal stuff
lua <<EOF
function _G.set_terminal_keymaps()
  local opts = {noremap = true}
  vim.api.nvim_buf_set_keymap(0, 't', '<esc>', [[<C-\><C-n>]], opts)
  vim.api.nvim_buf_set_keymap(0, 't', 'jk', [[<C-\><C-n>]], opts)
  vim.api.nvim_buf_set_keymap(0, 't', '<C-h>', [[<C-\><C-n><C-W>h]], opts)
  vim.api.nvim_buf_set_keymap(0, 't', '<C-j>', [[<C-\><C-n><C-W>j]], opts)
  vim.api.nvim_buf_set_keymap(0, 't', '<C-k>', [[<C-\><C-n><C-W>k]], opts)
  vim.api.nvim_buf_set_keymap(0, 't', '<C-l>', [[<C-\><C-n><C-W>l]], opts)
end

vim.cmd('autocmd! TermOpen term://* lua set_terminal_keymaps()')
EOF