-- Imperative configuration that has no typed nixvim option: the colorscheme call and autocmds.

-- gbprod/nord.nvim.
require("nord").setup({
  transparent = true,
})
vim.cmd.colorscheme("nord")

-- Keep floating windows distinct from the current line highlight.
vim.api.nvim_set_hl(0, "NormalFloat", { bg = "#2e3440" })
vim.api.nvim_set_hl(0, "FloatBorder", { fg = "#88c0d0", bg = "#2e3440" })

local open_floating_preview = vim.lsp.util.open_floating_preview
vim.lsp.util.open_floating_preview = function(contents, syntax, opts, ...)
  opts = opts or {}
  opts.border = opts.border or "rounded"
  return open_floating_preview(contents, syntax, opts, ...)
end

-- Format Rust buffers before writing them.
vim.api.nvim_create_autocmd("BufWritePre", {
  pattern = "*.rs",
  callback = function(args)
    vim.lsp.buf.format({
      bufnr = args.buf,
      timeout_ms = 2000,
      filter = function(client)
        return client.name == "rust_analyzer"
      end,
    })
  end,
})

-- Conceal markdown syntax in markdown buffers.
-- conceallevel is window-local, so it is set with opt_local when the filetype
-- is applied to the buffer's window.
vim.api.nvim_create_autocmd("FileType", {
  pattern = "markdown",
  callback = function()
    vim.opt_local.conceallevel = 2
  end,
})

-- Soft-wrap prose buffers without inserting line breaks.
vim.api.nvim_create_autocmd("FileType", {
  pattern = { "gitcommit", "markdown", "text" },
  callback = function()
    vim.opt_local.wrap = true
    vim.opt_local.linebreak = true
    vim.opt_local.breakindent = true
  end,
})

-- Turn line blame off again once the Neogit status buffer is closed.
vim.api.nvim_create_autocmd("BufUnload", {
  callback = function(args)
    if vim.bo[args.buf].filetype == "NeogitStatus" then
      require("gitsigns").toggle_current_line_blame(false)
    end
  end,
})