require 'nvim-treesitter.configs'.setup {
    ensure_installed = 'all',
    ignore_install = { 'comment', 'help' },
    sync_install = true,
    highlight = {
        enable = true,
        additional_vim_regex_highlighting = { 'cpp', 'org' }
    }
}

require('ts_context_commentstring').setup({
    enable = true,
    enable_autocmd = false                         -- handled by Comment (?)
})
vim.g.skip_ts_context_commentstring_module = true; -- disable backwards compat

require('orgmode').setup {}
require('orgmode').setup_ts_grammar()
require('which-key').register({ ['<Leader>o'] = { name = 'Orgmode' } })

local ffgroup = vim.api.nvim_create_augroup('config_ff', { clear = true })
vim.api.nvim_create_autocmd({ 'FileType' }, {
    group = ffgroup,
    pattern = { 'org' },
    callback = function()
        -- allow to hide stuff, like links
        vim.opt_local.conceallevel = 2
        vim.opt_local.concealcursor = 'nc'
    end
})

vim.api.nvim_create_autocmd({ 'FileType' }, {
    group = ffgroup,
    pattern = { 'gentoo-package-*' },
    command = [[set tabstop=2 shiftwidth=2]]
})

vim.api.nvim_create_autocmd({ 'BufEnter' }, {
    group = ffgroup,
    pattern = { '*.m3u8', '*.m3u' },
    command = [[set textwidth=0]]
})

vim.api.nvim_create_autocmd({ 'BufEnter' }, {
    group = ffgroup,
    pattern = { '*.log' },
    command = [[AnsiEsc]]
})

-- <https://github.com/tree-sitter/tree-sitter-cpp/issues/116>
vim.api.nvim_create_autocmd({ 'FileType' }, {
    group = ffgroup,
    pattern = { 'cpp' },
    command = [[set ft=cpp.doxygen]]
})

vim.api.nvim_create_autocmd({ 'FileType' }, {
    group = ffgroup,
    pattern = { 'mail' },
    command = [[set textwidth=72]]
})

require("todo-comments").setup({
    signs = false,
    highlight = {
        keyword = 'bg',
        after = ''
    }
})

vim.g.vimtex_compiler_latexmk_engines = { _ = '-xelatex' }

require('colorizer').setup({
    filetypes = { '*' },
    user_default_options = {
        mode = 'virtualtext',
        rgb_fn = true,
        hsl_fn = true,
        RRGGBBAA = true,
    }
})

-- workarounds for missing syntax highlighting
require('paint').setup({
    highlights = {
        {
            filter = { filetype = 'cpp.doxygen' },
            pattern = '%s*%*!?%s*(@%w+)',
            hl = 'Constant'
        },
    }
})