{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "routine.schema.json",
  "title": "NPC Routine Schedules",
  "description": "Daily routine schedules — all NPCs in one file per district for cross-NPC validation (D-034).",
  "type": "object",
  "required": ["district", "schedules"],
  "additionalProperties": false,
  "properties": {
    "district": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9-]*$",
      "description": "District slug this routine file belongs to"
    },
    "schedules": {
      "type": "array",
      "items": { "$ref": "#/$defs/npc_schedule" },
      "minItems": 1
    }
  },
  "$defs": {
    "npc_schedule": {
      "type": "object",
      "required": ["npc", "entries"],
      "additionalProperties": false,
      "properties": {
        "npc": {
          "type": "string",
          "pattern": "^npc:[a-z][a-z0-9-]*$",
          "description": "NPC short-form canonical ID"
        },
        "entries": {
          "type": "array",
          "items": { "$ref": "#/$defs/routine_entry" },
          "minItems": 1
        },
        "deviations": {
          "type": "array",
          "items": { "$ref": "#/$defs/deviation" },
          "description": "Conditional schedule overrides (FRIEND arc staging, etc.)"
        }
      }
    },
    "routine_entry": {
      "type": "object",
      "required": ["phase", "location"],
      "additionalProperties": false,
      "properties": {
        "phase": {
          "type": "string",
          "enum": ["morning", "afternoon", "evening", "night"],
          "description": "Day phase for this entry"
        },
        "location": {
          "type": "string",
          "pattern": "^[a-z][a-z0-9-]*$",
          "description": "Location slug"
        },
        "tile": {
          "type": "object",
          "properties": {
            "x": { "type": "integer" },
            "y": { "type": "integer" }
          },
          "required": ["x", "y"],
          "description": "Specific tile coordinates within the location"
        },
        "activity": {
          "type": "string",
          "description": "What the NPC is doing at this location/time"
        }
      }
    },
    "deviation": {
      "type": "object",
      "required": ["trigger", "location"],
      "additionalProperties": false,
      "properties": {
        "trigger": {
          "type": "string",
          "description": "Condition that activates this deviation"
        },
        "phase": {
          "type": "string",
          "enum": ["morning", "afternoon", "evening", "night"]
        },
        "location": {
          "type": "string",
          "pattern": "^[a-z][a-z0-9-]*$"
        },
        "tile": {
          "type": "object",
          "properties": {
            "x": { "type": "integer" },
            "y": { "type": "integer" }
          },
          "required": ["x", "y"]
        },
        "activity": { "type": "string" }
      }
    }
  }
}