{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Scene Description Training Entry",
  "description": "Schema for lyrics-to-visual-scene description training data entries.",
  "type": "object",
  "required": ["song", "artist", "beat", "timestamp", "lyric_line", "scene"],
  "properties": {
    "song": {
      "type": "string",
      "minLength": 1,
      "description": "Song title"
    },
    "artist": {
      "type": "string",
      "minLength": 1,
      "description": "Artist name"
    },
    "mood_arc": {
      "type": "string",
      "description": "Overall mood progression of the song (optional)"
    },
    "beat": {
      "type": "integer",
      "minimum": 1,
      "description": "Beat number within the song (1-indexed)"
    },
    "timestamp": {
      "type": "string",
      "pattern": "^[0-9]+:[0-5][0-9]$",
      "description": "Timestamp in M:SS or MM:SS format"
    },
    "duration": {
      "type": "string",
      "description": "Duration of the beat (e.g. '30s', '15s')"
    },
    "duration_seconds": {
      "type": "integer",
      "minimum": 1,
      "description": "Duration in seconds (integer alternative)"
    },
    "lyric_line": {
      "type": "string",
      "minLength": 1,
      "description": "The lyric line for this beat"
    },
    "scene": {
      "type": "object",
      "required": ["mood", "colors", "composition", "description"],
      "properties": {
        "mood": {
          "type": "string",
          "minLength": 1,
          "description": "Emotional mood of the scene"
        },
        "colors": {
          "type": "array",
          "items": { "type": "string", "minLength": 1 },
          "minItems": 1,
          "description": "Color palette for the scene"
        },
        "composition": {
          "type": "string",
          "minLength": 1,
          "description": "Shot composition (e.g. 'wide shot', 'close-up', 'low angle')"
        },
        "camera": {
          "type": "string",
          "description": "Camera movement (e.g. 'static', 'slow zoom', 'tracking')"
        },
        "camera_movement": {
          "type": "string",
          "description": "Alternative field name for camera movement"
        },
        "description": {
          "type": "string",
          "minLength": 10,
          "description": "Full scene description text"
        }
      },
      "additionalProperties": true
    }
  },
  "additionalProperties": true
}