local so = require 'symbols-outline'
local buf_request = require('symbols-outline.utils.lsp_utils').request

local M = {}

local function get_rename_params(node, winnr)
  local bufnr = vim.api.nvim_win_get_buf(winnr)
  local fn = 'file://' .. vim.api.nvim_buf_get_name(bufnr)

  return {
    textDocument = { uri = fn },
    position = { line = node.line, character = node.character },
    bufnr = bufnr,
  }
end

function M.rename()
  local current_line = vim.api.nvim_win_get_cursor(so.view.winnr)[1]
  local node = so.state.flattened_outline_items[current_line]

  local params = get_rename_params(node, so.state.code_win)

  local new_name = vim.fn.input('New Name: ', node.name)
  if not new_name or new_name == '' or new_name == node.name then
    return
  end

  params.newName = new_name

  buf_request(
    params.bufnr,
    'textDocument/rename',
    params,
    function(_, result, ctx)
      if result ~= nil then
        local client = vim.lsp.get_client_by_id(ctx.client_id)
        vim.lsp.util.apply_workspace_edit(result, client.offset_encoding)
      end
    end
  )
end

return M