domain

type AVCodec uint8

type AVPacket struct {
	Codec         AVCodec
	Data          []byte
	PTSms         uint64
	DTSms         uint64
	KeyFrame      bool
	Discontinuity bool
}

type AudioCodec string

type AudioConfig struct {
	Codec AudioCodec `json:"codec" yaml:"codec"`

	// Bitrate is the audio bitrate in kbps. Typical: 128 (stereo), 192 (high quality).
	Bitrate int `json:"bitrate" yaml:"bitrate"`

	// SampleRate is the output sample rate in Hz. Typical: 44100, 48000.
	SampleRate int `json:"sample_rate" yaml:"sample_rate"`

	// Channels: 1 = mono, 2 = stereo, 6 = 5.1 surround.
	Channels int `json:"channels" yaml:"channels"`

	// Language is the ISO 639-1 code embedded in HLS/DASH metadata, e.g. "en", "vi".
	Language string `json:"language" yaml:"language"`

	// Normalize applies EBU R128 loudness normalization (-23 LUFS).
	// Useful for broadcast compliance.
	Normalize bool `json:"normalize" yaml:"normalize"`
}

type AudioTranscodeConfig struct {
	// Copy copies origin audio without re-encoding.
	Copy bool `json:"copy" yaml:"copy"`

	Codec AudioCodec `json:"codec" yaml:"codec"`

	// Bitrate is the audio bitrate in kbps.
	Bitrate int `json:"bitrate" yaml:"bitrate"`

	// SampleRate is output sample rate in Hz.
	SampleRate int `json:"sample_rate" yaml:"sample_rate"`

	// Channels: 1 = mono, 2 = stereo, 6 = 5.1.
	Channels int `json:"channels" yaml:"channels"`

	// Language is ISO 639-1 code, e.g. "en", "vi".
	Language string `json:"language" yaml:"language"`

	// Normalize applies EBU R128 loudness normalization.
	Normalize bool `json:"normalize" yaml:"normalize"`
}

type DVRGap struct {
	From     time.Time     `json:"from" yaml:"from"`         // wall time gap started
	To       time.Time     `json:"to" yaml:"to"`             // wall time recording resumed
	Duration time.Duration `json:"duration" yaml:"duration"` // To - From
}

type DVRIndex struct {
	StreamCode    StreamCode `json:"stream_code" yaml:"stream_code"`
	StartedAt     time.Time  `json:"started_at" yaml:"started_at"`
	LastSegmentAt time.Time  `json:"last_segment_at,omitempty" yaml:"last_segment_at,omitempty"`

	SegmentCount   int   `json:"segment_count" yaml:"segment_count"`
	TotalSizeBytes int64 `json:"total_size_bytes" yaml:"total_size_bytes"`

	// Gaps is the list of known signal-loss / server-restart interruptions.
	Gaps []DVRGap `json:"gaps,omitempty" yaml:"gaps,omitempty"`
}

type DecoderConfig struct {
	// Name is the FFmpeg decoder name.
	// "" = let FFmpeg choose automatically.
	// Examples: "h264_cuvid", "h264_qsv".
	Name string `json:"name,omitempty" yaml:"name,omitempty"`
}

type Event struct {
	ID         string         `json:"id"` // UUID for idempotent delivery
	Type       EventType      `json:"type"`
	StreamCode StreamCode     `json:"stream_code"`
	OccurredAt time.Time      `json:"occurred_at"`
	Payload    map[string]any `json:"payload,omitempty"` // event-specific fields
}

type EventType string

type GlobalConfig struct {
	Server     *config.ServerConfig     `json:"server,omitempty" yaml:"server,omitempty"`
	Listeners  *config.ListenersConfig  `json:"listeners,omitempty" yaml:"listeners,omitempty"`
	Ingestor   *config.IngestorConfig   `json:"ingestor,omitempty" yaml:"ingestor,omitempty"`
	Buffer     *config.BufferConfig     `json:"buffer,omitempty" yaml:"buffer,omitempty"`
	Transcoder *config.TranscoderConfig `json:"transcoder,omitempty" yaml:"transcoder,omitempty"`
	Publisher  *config.PublisherConfig  `json:"publisher,omitempty" yaml:"publisher,omitempty"`
	Manager    *config.ManagerConfig    `json:"manager,omitempty" yaml:"manager,omitempty"`
	Hooks      *config.HooksConfig      `json:"hooks,omitempty" yaml:"hooks,omitempty"`
	Log        *config.LogConfig        `json:"log,omitempty" yaml:"log,omitempty"`
}

type HWAccel string

type Hook struct {
	ID     HookID   `json:"id" yaml:"id"`
	Name   string   `json:"name" yaml:"name"`
	Type   HookType `json:"type" yaml:"type"`
	Target string   `json:"target" yaml:"target"` // HTTP URL or Kafka topic
	Secret string   `json:"secret" yaml:"secret"` // HMAC-SHA256 signing secret (HTTP only)

	// EventTypes filters which events trigger delivery. Empty = all events.
	EventTypes []EventType `json:"event_types,omitempty" yaml:"event_types,omitempty"`

	// StreamCodes filters delivery by stream code.
	// Only and Except are mutually exclusive; Only takes precedence when both are set.
	// Omitting the field (nil) means all streams are included.
	StreamCodes *StreamCodeFilter `json:"stream_codes,omitempty" yaml:"stream_codes,omitempty"`

	// Metadata holds user-defined key-value pairs merged into every event payload
	// delivered by this hook. Useful for tagging events with custom context
	// (e.g. environment, tenant ID, region) without modifying the server config.
	Metadata map[string]string `json:"metadata,omitempty" yaml:"metadata,omitempty"`

	Enabled bool `json:"enabled" yaml:"enabled"`

	// MaxRetries is the number of delivery attempts before giving up.
	// 0 means use the server default (3).
	MaxRetries int `json:"max_retries" yaml:"max_retries"`

	// TimeoutSec is the per-attempt delivery timeout in seconds.
	// 0 means use the server default (10s).
	TimeoutSec int `json:"timeout_sec" yaml:"timeout_sec"`
}

type HookID string

type HookType string

type Input struct {
	// URL is the source endpoint. See the package doc for supported formats.
	URL string `json:"url" yaml:"url"`

	// Priority determines failover order. Lower value = higher priority.
	// The Stream Manager always prefers the lowest-priority alive input.
	Priority int `json:"priority" yaml:"priority"`

	// Headers are arbitrary HTTP headers sent with every request for HTTP/HLS inputs.
	// Common uses:
	//   "Authorization": "Bearer <token>"
	//   "Authorization": "Basic <base64(user:pass)>"
	//   "X-Custom-Token": "secret"
	Headers map[string]string `json:"headers,omitempty" yaml:"headers,omitempty"`

	// Params are extra URL query parameters merged into the source URL before
	// connecting. Used for protocols that carry credentials or options in the
	// query string (SRT ?passphrase=, S3 ?access_key= / ?secret_key=, etc.).
	//   "passphrase": "my-srt-passphrase"
	//   "access_key": "AKID..."   (S3)
	//   "secret_key": "wJal..."   (S3)
	Params map[string]string `json:"params,omitempty" yaml:"params,omitempty"`

	// Net controls reconnect and timeout behaviour.
	Net InputNetConfig `json:"net,omitempty" yaml:"net,omitempty"`

	// Alive is a runtime-only field updated by the Stream Manager health checker.
	// Not persisted to storage.
	Alive bool `json:"-" yaml:"-"`
}

type InputNetConfig struct {
	// ConnectTimeoutSec caps each HTTP round-trip (headers + full body) for pull
	// readers that use net/http (e.g. HLS playlist and segment GETs). Zero uses
	// the reader's default (30s for HLS).
	ConnectTimeoutSec int `json:"connect_timeout_sec,omitempty" yaml:"connect_timeout_sec,omitempty"`

	// ReadTimeoutSec is the max silence duration before declaring the input dead.
	ReadTimeoutSec int `json:"read_timeout_sec,omitempty" yaml:"read_timeout_sec,omitempty"`

	// Reconnect enables automatic reconnection when the input drops.
	Reconnect bool `json:"reconnect,omitempty" yaml:"reconnect,omitempty"`

	// ReconnectDelaySec is the initial delay before the first reconnect attempt.
	ReconnectDelaySec int `json:"reconnect_delay_sec,omitempty" yaml:"reconnect_delay_sec,omitempty"`

	// ReconnectMaxDelaySec caps the exponential backoff delay.
	ReconnectMaxDelaySec int `json:"reconnect_max_delay_sec,omitempty" yaml:"reconnect_max_delay_sec,omitempty"`

	// MaxReconnects is the total number of reconnect attempts (0 = unlimited).
	MaxReconnects int `json:"max_reconnects,omitempty" yaml:"max_reconnects,omitempty"`
}

type OutputProtocols struct {
	// HLS enables Apple HTTP Live Streaming (m3u8 + segments over HTTP).
	// Compatible with browsers, iOS, Android, Smart TVs.
	HLS bool `json:"hls" yaml:"hls"`

	// DASH enables MPEG-DASH packaging over HTTP.
	// Required for Widevine/PlayReady DRM.
	DASH bool `json:"dash" yaml:"dash"`

	// RTSP opens an RTSP listener for pull clients (VLC, broadcast tools).
	RTSP bool `json:"rtsp" yaml:"rtsp"`

	// RTMP opens an RTMP publish endpoint for legacy players/CDNs.
	RTMP bool `json:"rtmp" yaml:"rtmp"`

	// SRT opens an SRT listener port for contribution-quality pull.
	SRT bool `json:"srt" yaml:"srt"`
}

type PushDestination struct {
	// URL is the destination ingest endpoint.
	// Supported schemes:
	//   rtmp://  — plain TCP, default port 1935 (e.g. rtmp://a.rtmp.youtube.com/live2/{key})
	//   rtmps:// — TLS-wrapped RTMP, default port 443 (e.g. rtmps://live-api-s.facebook.com:443/rtmp/{key})
	URL string `json:"url" yaml:"url"`

	// Enabled controls whether this destination is active.
	Enabled bool `json:"enabled" yaml:"enabled"`

	// TimeoutSec is the connection/write timeout in seconds.
	TimeoutSec int `json:"timeout_sec" yaml:"timeout_sec"`

	// RetryTimeoutSec is the delay between retry attempts in seconds.
	RetryTimeoutSec int `json:"retry_timeout_sec" yaml:"retry_timeout_sec"`

	// Limit is the maximum number of retry attempts. 0 = unlimited.
	Limit int `json:"limit" yaml:"limit"`

	// Comment is a human-readable note for this destination.
	Comment string `json:"comment" yaml:"comment"`

	// Status is a runtime-only field updated by the publisher.
	// Not persisted to storage.
	Status PushStatus `json:"status,omitempty" yaml:"-"`
}

type PushStatus string

type Recording struct {
	ID         RecordingID     `json:"id" yaml:"id"`
	StreamCode StreamCode      `json:"stream_code" yaml:"stream_code"`
	StartedAt  time.Time       `json:"started_at" yaml:"started_at"`
	StoppedAt  *time.Time      `json:"stopped_at,omitempty" yaml:"stopped_at,omitempty"`
	Status     RecordingStatus `json:"status" yaml:"status"`

	// SegmentDir is the absolute path to the directory holding TS files,
	// playlist.m3u8, and index.json.
	SegmentDir string `json:"segment_dir" yaml:"segment_dir"`
}

type RecordingID string

type RecordingStatus string

type Stream struct {
	// Code is the unique key chosen by the user ([a-zA-Z0-9_]).
	Code StreamCode `json:"code" yaml:"code"`

	Name        string   `json:"name" yaml:"name"`
	Description string   `json:"description" yaml:"description"`
	Tags        []string `json:"tags" yaml:"tags"`

	// StreamKey is used to authenticate RTMP/SRT push ingest.
	StreamKey string `json:"stream_key" yaml:"stream_key"`

	// Status is the runtime lifecycle state.
	// It is never persisted — always computed from the coordinator's in-memory
	// state and overlaid by the API layer before returning responses to clients.
	Status StreamStatus `json:"-" yaml:"-"`

	// Disabled when true excludes the stream from server bootstrap and rejects pipeline Start.
	Disabled bool `json:"disabled" yaml:"disabled"`

	// Inputs are the available ingest sources ordered by Priority.
	// The Stream Manager monitors health and switches between them on failure.
	Inputs []Input `json:"inputs" yaml:"inputs"`

	// Transcoder controls encoding/decoding settings.
	// nil means no transcoding for this stream.
	Transcoder *TranscoderConfig `json:"transcoder,omitempty" yaml:"transcoder,omitempty"`

	// Protocols defines which delivery protocols are opened for this stream.
	// The server opens a listener/packager for each enabled protocol.
	// Protocol-level config (ports, segment duration, CDN URL) lives in server config.
	Protocols OutputProtocols `json:"protocols" yaml:"protocols"`

	// Push is the list of external destinations the server actively pushes to.
	// Each entry defines one push target (YouTube, Facebook, Twitch, CDN relay, etc.).
	Push []PushDestination `json:"push" yaml:"push"`

	// DVR overrides the global DVR settings for this specific stream.
	// If nil, the global config is used (when DVR is enabled globally).
	DVR *StreamDVRConfig `json:"dvr,omitempty" yaml:"dvr,omitempty"`

	// Watermark is an optional text or image overlay applied before encoding.
	Watermark *WatermarkConfig `json:"watermark,omitempty" yaml:"watermark,omitempty"`

	// Thumbnail controls periodic screenshot generation for preview images.
	Thumbnail *ThumbnailConfig `json:"thumbnail,omitempty" yaml:"thumbnail,omitempty"`
}

type StreamCode string

type StreamCodeFilter struct {
	// Only delivers events only for streams in this list.
	Only []StreamCode `json:"only,omitempty" yaml:"only,omitempty"`
	// Except delivers events for all streams except those in this list.
	Except []StreamCode `json:"except,omitempty" yaml:"except,omitempty"`
}

type StreamDVRConfig struct {
	Enabled bool `json:"enabled" yaml:"enabled"`

	// RetentionSec is the retention window in seconds.
	// 0 = keep forever.
	RetentionSec int `json:"retention_sec" yaml:"retention_sec"`

	// SegmentDuration overrides the global segment length in seconds.
	// 0 = use default (4s).
	SegmentDuration int `json:"segment_duration" yaml:"segment_duration"`

	// StoragePath overrides the default DVR root directory for this stream.
	// "" = use "./dvr/{streamCode}".
	StoragePath string `json:"storage_path" yaml:"storage_path"`

	// MaxSizeGB caps total disk usage. Oldest segments pruned when exceeded.
	// 0 = no limit.
	MaxSizeGB float64 `json:"max_size_gb" yaml:"max_size_gb"`
}

type StreamStatus string

type ThumbnailConfig struct {
	Enabled bool `json:"enabled" yaml:"enabled"`

	// IntervalSec generates one thumbnail every N seconds.
	IntervalSec int `json:"interval_sec" yaml:"interval_sec"`

	// Width and Height of the output thumbnail in pixels.
	// 0 = match source resolution.
	Width  int `json:"width" yaml:"width"`
	Height int `json:"height" yaml:"height"`

	// Quality is the JPEG quality (1–31, lower = better). Default: 5.
	Quality int `json:"quality" yaml:"quality"`

	// OutputDir is relative to the publisher HLS directory.
	// E.g. "thumbnails" → written to {hls_dir}/{stream_code}/thumbnails/thumb.jpg
	OutputDir string `json:"output_dir" yaml:"output_dir"`
}

type TranscoderConfig struct {
	Video   VideoTranscodeConfig   `json:"video" yaml:"video"`
	Audio   AudioTranscodeConfig   `json:"audio" yaml:"audio"`
	Decoder DecoderConfig          `json:"decoder" yaml:"decoder"`
	Global  TranscoderGlobalConfig `json:"global" yaml:"global"`

	// ExtraArgs are raw FFmpeg arguments appended after the generated command.
	// Use with caution — may conflict with generated arguments.
	ExtraArgs []string `json:"extra_args,omitempty" yaml:"extra_args,omitempty"`
}

type TranscoderGlobalConfig struct {
	// HW selects the acceleration backend.
	HW HWAccel `json:"hw" yaml:"hw"`

	// FPS sets output framerate. 0 = source/default.
	FPS int `json:"fps" yaml:"fps"`

	// GOP sets keyframe interval in frames. 0 = encoder default.
	GOP int `json:"gop" yaml:"gop"`

	// DeviceID selects hardware device index.
	DeviceID int `json:"deviceid" yaml:"deviceid"`
}

type VODMount struct {
	Name    VODName `json:"name" yaml:"name"`
	Storage string  `json:"storage" yaml:"storage"`
	Comment string  `json:"comment,omitempty" yaml:"comment,omitempty"`
}

type VODName string

type VideoCodec string

type VideoProfile struct {
	// Width and Height define the output resolution.
	// Set to 0 to keep the source dimensions (Width=0 & Height=0 = no scaling).
	Width  int `json:"width" yaml:"width"`
	Height int `json:"height" yaml:"height"`

	// Bitrate is the target video bitrate in kbps. 0 = encoder auto.
	Bitrate int `json:"bitrate" yaml:"bitrate"`

	// MaxBitrate caps the peak bitrate in kbps (CBR/VBR ceiling). 0 = no cap.
	MaxBitrate int `json:"max_bitrate" yaml:"max_bitrate"`

	// Framerate is the output frame rate (fps). 0 = match source.
	Framerate float64 `json:"framerate" yaml:"framerate"`

	// KeyframeInterval is the GOP size in seconds.
	// Must match or be a multiple of the HLS/DASH segment duration.
	KeyframeInterval int `json:"keyframe_interval" yaml:"keyframe_interval"`

	Codec VideoCodec `json:"codec" yaml:"codec"`

	// Preset controls the encoder speed/quality tradeoff.
	// libx264: "ultrafast" | "superfast" | "veryfast" | "faster" | "fast" | "medium" | "slow" | "veryslow"
	// NVENC:   "p1" (fastest) .. "p7" (highest quality)
	Preset string `json:"preset" yaml:"preset"`

	// Profile controls the H.264/H.265 encoding profile.
	// "baseline" | "main" | "high" (H.264); "main" | "main10" (H.265)
	Profile string `json:"profile" yaml:"profile"`

	// Level controls the H.264/H.265 encoding level.
	// Common: "3.1", "4.0", "4.1", "4.2", "5.0", "5.1"
	Level string `json:"level" yaml:"level"`
}

type VideoTranscodeConfig struct {
	// Copy copies origin video without re-encoding.
	Copy bool `json:"copy" yaml:"copy"`

	// Profiles defines ABR renditions when re-encoding.
	Profiles []VideoProfile `json:"profiles,omitempty" yaml:"profiles,omitempty"`
}

type WatermarkConfig struct {
	Enabled bool          `json:"enabled" yaml:"enabled"`
	Type    WatermarkType `json:"type" yaml:"type"`

	// Text is the string to render. Supports strftime directives for live timestamps.
	// E.g. "LIVE %{localtime:%H:%M:%S}"
	Text string `json:"text" yaml:"text"`

	// FontFile is the path to a .ttf/.otf font file.
	// "" = FFmpeg default font.
	FontFile string `json:"font_file" yaml:"font_file"`

	// FontSize in pixels. Default: 24.
	FontSize int `json:"font_size" yaml:"font_size"`

	// FontColor in FFmpeg color syntax. E.g. "white", "#FFFFFF", "white@0.8".
	FontColor string `json:"font_color" yaml:"font_color"`

	// ImagePath is the path to the watermark image (PNG with alpha recommended).
	ImagePath string `json:"image_path" yaml:"image_path"`

	// Opacity controls transparency: 0.0 = fully transparent, 1.0 = fully opaque.
	Opacity float64 `json:"opacity" yaml:"opacity"`

	// Position is the corner/center anchor for the watermark.
	Position WatermarkPosition `json:"position" yaml:"position"`

	// OffsetX and OffsetY are pixel offsets from the chosen position edge.
	OffsetX int `json:"offset_x" yaml:"offset_x"`
	OffsetY int `json:"offset_y" yaml:"offset_y"`
}

type WatermarkPosition string

type WatermarkType string