/*
DESCRIPTION
  config_test.go provides testing for configuration functionality found in config.go.

AUTHORS
  Saxon A. Nelson-Milton <saxon@ausocean.org>

LICENSE
  Copyright (C) 2019 the Australian Ocean Lab (AusOcean)

  It is free software: you can redistribute it and/or modify them
  under the terms of the GNU General Public License as published by the
  Free Software Foundation, either version 3 of the License, or (at your
  option) any later version.

  It is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  for more details.

  You should have received a copy of the GNU General Public License
  in gpl.txt.  If not, see http://www.gnu.org/licenses.
*/

package config

import (
	"fmt"
	"testing"
)

type dumbLogger struct{}

func (dl *dumbLogger) SetLevel(l int8)                        {}
func (dl *dumbLogger) Log(l int8, m string, p ...interface{}) {}

func TestValidate(t *testing.T) {
	tests := []struct {
		in    Config
		check func(c Config) error
		err   error
	}{
		{
			in: Config{Outputs: []uint8{OutputHTTP}, Logger: &dumbLogger{}},
			check: func(c Config) error {
				if c.Bitrate != 0 {
					return fmt.Errorf("did not get expected bitrate. Got: %v, Want: %v", c.Bitrate, 0)
				}
				if c.Quantization != defaultQuantization {
					return fmt.Errorf("did not get expected quantization. Got: %v, Want: %v", c.Quantization, defaultQuantization)
				}
				return nil
			},
		},
		{
			in: Config{Outputs: []uint8{OutputRTMP}, RTMPURL: "dummURL", Logger: &dumbLogger{}},
			check: func(c Config) error {
				if c.Bitrate != defaultBitrate {
					return fmt.Errorf("did not get expected bitrate. Got: %v, Want: %v", c.Bitrate, defaultBitrate)
				}
				if c.Quantization != 0 {
					return fmt.Errorf("did not get expected quantization. Got: %v, Want: %v", c.Quantization, 0)
				}
				return nil
			},
		},
		{
			in:    Config{Outputs: []uint8{OutputHTTP}, Quantization: 50, Logger: &dumbLogger{}},
			check: func(c Config) error { return nil },
			err:   errInvalidQuantization,
		},
		{
			in: Config{Outputs: []uint8{OutputHTTP}, Quantization: 20, Logger: &dumbLogger{}},
			check: func(c Config) error {
				if c.Bitrate != 0 {
					return fmt.Errorf("did not get expected bitrate. Got: %v, Want: %v", c.Bitrate, 0)
				}
				if c.Quantization != 20 {
					return fmt.Errorf("did not get expected quantization. Got: %v, Want: %v", c.Quantization, 20)
				}
				return nil
			},
		},
	}

	for i, test := range tests {
		err := (&test.in).Validate()
		if err != test.err {
			t.Errorf("did not get expected error for test %d\nGot: %v\nWant: %v\n", i, err, test.err)
		}

		err = test.check(test.in)
		if err != nil {
			t.Errorf("test %d failed with err: %v", i, err)
		}
	}
}