-- Autocmds are automatically loaded on the VeryLazy event
-- Default autocmds that are always set: https://github.com/LazyVim/LazyVim/blob/main/lua/lazyvim/config/autocmds.lua
-- Add any additional autocmds here
vim.api.nvim_create_autocmd("FileType", {
  pattern = { "markdown" },
  callback = function()
    vim.opt_local.textwidth = 80
    vim.opt_local.wrap = true
    vim.opt_local.spell = true
    vim.opt_local.tabstop = 2
    vim.opt_local.softtabstop = 2
    vim.opt_local.shiftwidth = 2
    vim.opt_local.expandtab = true

    -- Add the key mappings only for Markdown files in a zk notebook.
    if require("zk.util").notebook_root(vim.fn.expand("%:p")) ~= nil then
      local function map(...)
        vim.api.nvim_buf_set_keymap(0, ...)
      end
      local opts = { noremap = true, silent = false }

      -- Open the link under the caret.
      map("n", "<CR>", "<Cmd>lua vim.lsp.buf.definition()<CR>", opts)

      -- Create a new note after asking for its title.
      -- This overrides the global `<leader>zn` mapping to create the note in the same directory as the current buffer.
      map("n", "<leader>zn", "<Cmd>ZkNew { dir = vim.fn.expand('%:p:h'), title = vim.fn.input('Title: ') }<CR>", opts)
      -- Create a new note in the same directory as the current buffer, using the current selection for title.
      map("v", "<leader>znt", ":'<,'>ZkNewFromTitleSelection { dir = vim.fn.expand('%:p:h') }<CR>", opts)
      -- Create a new note in the same directory as the current buffer, using the current selection for note content and asking for its title.
      map(
        "v",
        "<leader>znc",
        ":'<,'>ZkNewFromContentSelection { dir = vim.fn.expand('%:p:h'), title = vim.fn.input('Title: ') }<CR>",
        opts
      )

      -- Open notes linking to the current buffer.
      map("n", "<leader>zb", "<Cmd>ZkBacklinks<CR>", opts)
      -- Alternative for backlinks using pure LSP and showing the source context.
      --map('n', '<leader>zb', '<Cmd>lua vim.lsp.buf.references()<CR>', opts)
      -- Open notes linked by the current buffer.
      map("n", "<leader>zl", "<Cmd>ZkLinks<CR>", opts)

      -- Preview a linked note.
      map("n", "K", "<Cmd>lua vim.lsp.buf.hover()<CR>", opts)
      -- Open the code actions for a visual selection.
      map("v", "<leader>za", ":'<,'>lua vim.lsp.buf.range_code_action()<CR>", opts)
    end
  end,
})