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neovim/.config/nvim/lua/utils/duplicates.lua

local functions = require("utils.functions")

local M = {}

local duplicates_n = {}
local duplicates_v = {}
local duplicates_i = {}
local duplicates_s = {}
local duplicates_x = {}

local function check_and_set_duplicates(input, description, check, table)
  if check then
    local found = table[input]

    if found ~= nil then
      if found ~= description then
        print(input .. " already mapped (" .. found .. " so we cannot map (" .. description .. ")")
      end
    end

    table[input] = description
  end
end

M.check_duplicates = function(type, input, description)
  local check_n = false
  local check_v = false
  local check_i = false
  local check_s = false
  local check_x = false

  if functions.is_table(type) then
    if type["n"] then
      check_n = true
    end
    if type["v"] then
      check_v = true
    end
    if type["i"] then
      check_i = true
    end
    if type["s"] then
      check_s = true
    end
    if type["x"] then
      check_x = true
    end
  else
    if type == "n" then
      check_n = true
    end
    if type == "v" then
      check_v = true
    end
    if type == "i" then
      check_i = true
    end
    if type == "s" then
      check_s = true
    end
    if type == "x" then
      check_x = true
    end
  end

  check_and_set_duplicates(input, description, check_n, duplicates_n)
  check_and_set_duplicates(input, description, check_v, duplicates_v)
  check_and_set_duplicates(input, description, check_i, duplicates_i)
  check_and_set_duplicates(input, description, check_s, duplicates_s)
  check_and_set_duplicates(input, description, check_x, duplicates_x)
end

return M