package model

import "fmt"

type Chunk struct {
	FName  string  `json:"fname"` // just the basename
	Length float64 `json:"length"`
}

type AudioStream struct {
	Index       int     `json:"index"`
	Lang        string  `json:"lang"` // there can be multiple instances of the same language! (Frédi és Béni is one example)
	Title       string  `json:"title"`
	Default     bool    `json:"default"`
	Codec       string  `json:"codec"`
	SampleRate  int     `json:"sample_rate"`
	Bitrate     int     `json:"bitrate"` // !!! <- This is before transcoding (if used!)
	Channels    int     `json:"channels"`
	AudioChunks []Chunk `json:"audio_chunks"`
}

type Resolution struct {
	Width  int `json:"width"`
	Height int `json:"height"`
}

func (r Resolution) String() string {
	return fmt.Sprintf("%dx%d", r.Width, r.Height)
}

type VideoStream struct {
	Resolution      Resolution `json:"resolution"`
	HLSCodecsString string     `json:"hls_codecs_string"` // i.e.: avc1.42E01E
	PeakBitrate     int        `json:"peak_bitrate"`      // for BANDWIDTH - bits per second
	AvgBitrate      int        `json:"avg_bitrate"`       // for AVERAGE-BANDWIDTH - bits per second
	FrameRate       float64    `json:"frame_rate"`
	VideoChunks     []Chunk    `json:"video_chunks"`
}

type MediaMetadata struct {
	FriendlyName   string        `json:"friendly_name"`
	TargetDuration float64       `json:"target_duration"`
	VideoStream    VideoStream   `json:"video_stream"`
	AudioStreams   []AudioStream `json:"audio_streams"`
}