-- Autocompletion
local function gh(repo) return 'https://github.com/' .. repo end
do
  vim.pack.add { gh 'saghen/blink.lib' }
  vim.pack.add { { src = gh 'saghen/blink.cmp', version = vim.version.range '2.*' } }
  vim.pack.add { { src = gh 'saghen/blink.cmp', version = vim.version.range '1.*' } }
  require('blink.cmp').setup {
    keymap = {
      -- 'default' (recommended) for mappings similar to built-in completions
      --   <c-y> to accept ([y]es) the completion.
      --    This will auto-import if your LSP supports it.
      --    This will expand snippets if the LSP sent a snippet.
      -- 'super-tab' for tab to accept
      -- 'enter' for enter to accept
      -- 'none' for no mappings
      --
      -- For an understanding of why the 'default' preset is recommended,
      -- you will need to read `:help ins-completion`
      --
      -- No, but seriously. Please read `:help ins-completion`, it is really good!
      --
      -- All presets have the following mappings:
      -- <tab>/<s-tab>: move to right/left of your snippet expansion
      -- <c-space>: Open menu or open docs if already open
      -- <c-n>/<c-p> or <up>/<down>: Select next/previous item
      -- <c-e>: Hide menu
      -- <c-k>: Toggle signature help
      ['<C-l>'] = { 'select_and_accept', 'fallback' },
      ['<C-space>'] = { 'select_and_accept', 'fallback' },
      ['<C-y>'] = { 'select_and_accept', 'fallback' },
      ['<Up>'] = { 'select_prev', 'fallback' },
      ['<Down>'] = { 'select_next', 'fallback' },
      ['<C-k>'] = { 'select_prev', 'fallback' },
      ['<C-j>'] = { 'select_next', 'fallback' },
      ['<C-p>'] = { 'select_prev', 'fallback' },
      ['<C-n>'] = { 'select_next', 'fallback' },
      ['<tab>'] = false,

      -- See :h blink-cmp-config-keymap for defining your own keymap
      preset = 'super-tab',

      -- For more advanced Luasnip keymaps (e.g. selecting choice nodes, expansion) see:
      --    https://github.com/L3MON4D3/LuaSnip?tab=readme-ov-file#keymaps
    },

    appearance = {
      -- 'mono' (default) for 'Nerd Font Mono' or 'normal' for 'Nerd Font'
      -- Adjusts spacing to ensure icons are aligned
      nerd_font_variant = 'mono',
    },

    completion = {
      -- By default, you may press `<c-space>` to show the documentation.
      -- Optionally, set `auto_show = true` to show the documentation after a delay.
      documentation = { auto_show = true, auto_show_delay_ms = 500 },
    },

    sources = {
      default = { 'lsp', 'path', 'snippets', 'buffer' },
    },

    snippets = { preset = 'luasnip' },

    -- Blink.cmp includes an optional, recommended rust fuzzy matcher,
    -- which automatically downloads a prebuilt binary when enabled.
    --
    -- By default, we use the Lua implementation instead, but you may enable
    -- the rust implementation via `'prefer_rust_with_warning'`
    --
    -- See :h blink-cmp-config-fuzzy for more information
    fuzzy = { implementation = 'lua' },

    -- Shows a signature help window while you type arguments for a function
    signature = { enabled = true },
  }
end