Prints

---

--- Configuration options for print/logging functions.
-- @field enabled Enables or disables all logging.
-- @field info Enables informational messages.
-- @field warn Enables warning messages.
-- @field error Enables error messages.
-- @field success Enables success messages.
-- @field debug Enables debug messages.
local options = {
  enabled = true,
  info = true,
  warn = true,
  error = true,
  success = true,
  debug = true,
}

local prefixes = {
  info = '[^4INFO^7]',
  warn = '[^3WARN^7]',
  error = '[^1ERROR^7]',
  success = '[^2SUCCESS^7]',
  debug = '[^6DEBUG^7]',
}

local template = '^7%s - %s^7'

local function handleException(reason, value)
  if type(value) == 'function' then return tostring(value) end
  return reason
end

local jsonOptions = { sort_keys = true, indent = true, exception = handleException }

local function log(level, fmt, ...)
  if not options.enabled or not options[level] then return end

  local args = { ... }
  if #args == 0 then
    print(template:format(prefixes[level], fmt))
    return
  end

  for i = 1, #args do
    local arg = args[i]
    args[i] = type(arg) == 'table' and json.encode(arg, jsonOptions) or tostring(arg)
  end

  local message = string.format(fmt, table.unpack(args))
  print(template:format(prefixes[level], message))
end

prints = {
  info    = function(fmt, ...) log('info', fmt, ...) end,
  warn    = function(fmt, ...) log('warn', fmt, ...) end,
  error   = function(fmt, ...) log('error', fmt, ...) end,
  success = function(fmt, ...) log('success', fmt, ...) end,
  debug   = function(fmt, ...) log('debug', fmt, ...) end,
}