defmodule ElxValidation do
  alias ElxValidation.Validate
  @moduledoc """
    > ** Easy and Simple Data validator.**
  - `make` function for start validation

  ### [ElxValidation Github Wiki Page](https://github.com/MajAhd/elx_validation/wiki)

  ## install
  ```
  mix.exs
     {:elx_validation, "~> 0.1.0"}

  mix deps.get
  ```

  ### How To use

  ```
  example_data = %{
    first_name: "Majid"
  }
  rules = [
     %{
        field: "first_name",
        as: "first name",
        validate: ["required", "string", "max:128"].
      },
  ]
  ```

  ***

  - field : The Field name that need to validate
  - as :  its optional and use for response error
  - validate : list of rules and validations

  ``` ElxValidation.make(example_data ,  rules) ```

  if it has error:

  ```
  %{
  errors: [
     name: ["Error Message" , "Error Message"]
  ],
  failed: true
  }
  ```

  Or if it hasn't error :

  ```
  %{
   errors: [],
   failed: false
  }
  ```

  """

  def make(data, rules) do
    validation = Validate.validations(data, rules)
    validation = Enum.filter(validation, & &1)
    %{
      errors: if Enum.count(validation) > 0 do
        validation
      else
        []
      end,
      failed: if Enum.count(validation) > 0 do
        true
      else
        false
      end,
    }
  end
end