{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://fun.lazying.art/data/schema/fun-media-manifest-v1.schema.json",
  "title": "Fun Lazying Art Media Manifest v1",
  "type": "object",
  "required": ["schema", "version", "id", "kind", "title", "duration", "assets", "textTracks", "timeline"],
  "properties": {
    "schema": {"const": "fun.lazying.media.manifest.v1"},
    "version": {"const": 1},
    "id": {"type": "string"},
    "kind": {"enum": ["song", "localized-song", "mv", "short-film", "video", "youtube-video"]},
    "title": {"type": "string"},
    "artist": {"type": "string"},
    "subtitle": {"type": "string"},
    "description": {"type": "string"},
    "caption": {"type": "string"},
    "duration": {"type": "number", "exclusiveMinimum": 0},
    "canonicalUrl": {"type": "string"},
    "share": {
      "type": "object",
      "properties": {
        "title": {"type": "string"},
        "description": {"type": "string"},
        "url": {"type": "string"},
        "image": {"type": "string"},
        "siteName": {"type": "string"}
      }
    },
    "assets": {
      "type": "object",
      "properties": {
        "cover": {"$ref": "#/$defs/asset"},
        "poster": {"$ref": "#/$defs/asset"},
        "primaryAudio": {"$ref": "#/$defs/asset"},
        "primaryVideo": {"$ref": "#/$defs/asset"},
        "youtube": {"$ref": "#/$defs/externalVideo"},
        "externalVideos": {"type": "array", "items": {"$ref": "#/$defs/externalVideo"}},
        "alternateAudio": {"type": "array", "items": {"$ref": "#/$defs/asset"}},
        "stems": {
          "type": "object",
          "additionalProperties": {"$ref": "#/$defs/asset"}
        },
        "subtitles": {
          "type": "object",
          "additionalProperties": {"$ref": "#/$defs/asset"}
        }
      },
      "additionalProperties": true
    },
    "musical": {
      "type": "object",
      "properties": {
        "key": {"type": "string"},
        "bpm": {"type": "number"},
        "timeSignature": {"type": "string"},
        "chords": {"type": "array", "items": {"$ref": "#/$defs/timedChord"}}
      }
    },
    "textTracks": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["code", "label", "nativeLabel", "path"],
        "properties": {
          "code": {"type": "string"},
          "label": {"type": "string"},
          "nativeLabel": {"type": "string"},
          "script": {"type": "string"},
          "features": {"type": "array", "items": {"type": "string"}},
          "path": {"type": "string"}
        }
      }
    },
    "timeline": {
      "type": "object",
      "required": ["unit", "lines"],
      "properties": {
        "unit": {"const": "seconds"},
        "lines": {"type": "array", "items": {"$ref": "#/$defs/timedLine"}}
      }
    },
    "chapters": {"type": "array"},
    "shots": {"type": "array"},
    "provenance": {"type": "object"},
    "artifacts": {"type": "array", "items": {"$ref": "#/$defs/link"}}
  },
  "$defs": {
    "asset": {
      "type": "object",
      "required": ["src"],
      "properties": {
        "id": {"type": "string"},
        "label": {"type": "string"},
        "src": {"type": "string"},
        "mime": {"type": "string"},
        "role": {"type": "string"},
        "width": {"type": "integer"},
        "height": {"type": "integer"}
      },
      "additionalProperties": true
    },
    "externalVideo": {
      "type": "object",
      "properties": {
        "id": {"type": "string"},
        "label": {"type": "string"},
        "provider": {"enum": ["youtube", "vimeo", "bilibili", "external"]},
        "videoId": {"type": "string"},
        "url": {"type": "string"},
        "embedUrl": {"type": "string"},
        "src": {"type": "string"},
        "role": {"type": "string"}
      },
      "anyOf": [
        {"required": ["videoId"]},
        {"required": ["url"]},
        {"required": ["embedUrl"]},
        {"required": ["src"]}
      ],
      "additionalProperties": true
    },
    "timedChord": {
      "type": "object",
      "required": ["start", "end", "name"],
      "properties": {
        "start": {"type": "number"},
        "end": {"type": "number"},
        "name": {"type": "string"},
        "degree": {"type": "string"}
      }
    },
    "timedLine": {
      "type": "object",
      "required": ["id", "start", "end"],
      "properties": {
        "id": {"type": "string"},
        "start": {"type": "number"},
        "end": {"type": "number"},
        "sourceText": {"type": "string"},
        "words": {"type": "array"}
      }
    },
    "link": {
      "type": "object",
      "required": ["href"],
      "properties": {
        "id": {"type": "string"},
        "label": {"type": "string"},
        "href": {"type": "string"}
      }
    }
  }
}