{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Campus Morning Brief / 校园晨报",
  "type": "object",
  "required": ["date", "profile", "weather", "quote", "general_news", "interest_news", "study_tip", "action_anchor"],
  "properties": {
    "date": {"type": "string", "format": "date"},
    "profile": {
      "type": "object",
      "required": ["display_name", "city", "age_group", "language"],
      "properties": {
        "display_name": {"type": "string"},
        "city": {"type": "string"},
        "age_group": {"enum": ["primary-school", "middle-school", "high-school", "college"]},
        "language": {"type": "string"}
      }
    },
    "weather": {
      "type": "object",
      "required": ["condition", "low_c", "high_c", "outfit", "campus_tip"],
      "properties": {
        "condition": {"type": "string"},
        "low_c": {"type": "number"},
        "high_c": {"type": "number"},
        "rain_probability": {"type": ["number", "null"], "minimum": 0, "maximum": 100},
        "outfit": {"type": "string"},
        "campus_tip": {"type": "string"},
        "source_url": {"type": "string", "format": "uri"}
      }
    },
    "quote": {
      "type": "object",
      "required": ["primary", "english", "author"],
      "properties": {
        "primary": {"type": "string"},
        "english": {"type": "string"},
        "author": {"type": "string"}
      }
    },
    "general_news": {"type": "array", "items": {"$ref": "#/$defs/news"}},
    "interest_news": {"type": "array", "items": {"$ref": "#/$defs/news"}},
    "study_tip": {"type": "string"},
    "action_anchor": {"type": "string"},
    "reminders": {"type": "array", "items": {"type": "string"}}
  },
  "$defs": {
    "news": {
      "type": "object",
      "required": ["title", "summary", "publisher", "published_date", "url"],
      "properties": {
        "title": {"type": "string"},
        "summary": {"type": "string"},
        "publisher": {"type": "string"},
        "published_date": {"type": "string", "format": "date"},
        "url": {"type": "string", "format": "uri"},
        "category": {"type": "string"}
      }
    }
  }
}