{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "ghostlight.corpus_coverage.schema.json",
  "title": "Ghostlight Corpus Coverage Ledger",
  "type": "object",
  "required": [
    "schema_version",
    "coverage_id",
    "coverage_targets",
    "entries"
  ],
  "properties": {
    "schema_version": {
      "const": "ghostlight.corpus_coverage.v0"
    },
    "coverage_id": {
      "type": "string",
      "minLength": 1
    },
    "coverage_targets": {
      "type": "object",
      "required": [
        "major_powers",
        "minor_powers",
        "movements",
        "pre_elysium_flashpoints",
        "defunct_absorbed_powers",
        "practical_first_broad_target",
        "major_power_requirement",
        "collision_requirement"
      ],
      "properties": {
        "major_powers": { "type": "integer", "minimum": 0 },
        "minor_powers": { "type": "integer", "minimum": 0 },
        "movements": { "type": "integer", "minimum": 0 },
        "pre_elysium_flashpoints": { "type": "integer", "minimum": 0 },
        "defunct_absorbed_powers": { "type": "integer", "minimum": 0 },
        "practical_first_broad_target": {
          "type": "object",
          "required": ["minimum", "maximum"],
          "properties": {
            "minimum": { "type": "integer", "minimum": 0 },
            "maximum": { "type": "integer", "minimum": 0 }
          },
          "additionalProperties": false
        },
        "major_power_requirement": { "type": "string", "minLength": 1 },
        "collision_requirement": { "type": "string", "minLength": 1 }
      },
      "additionalProperties": false
    },
    "entries": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "fixture_id",
          "status",
          "timeline_lane",
          "story_type",
          "primary_subjects",
          "secondary_subjects",
          "collision_axes",
          "tonal_modes",
          "training_targets",
          "training_usability",
          "artifacts",
          "review",
          "economy_hooks",
          "open_lore_gaps",
          "notes"
        ],
        "properties": {
          "fixture_id": { "type": "string", "minLength": 1 },
          "status": {
            "enum": ["planned", "draft", "accepted_as_draft", "accepted", "needs_revision", "rejected", "superseded"]
          },
          "timeline_lane": {
            "enum": ["historical_grounded", "transition_grounded", "future_branch"]
          },
          "canon_status": {
            "enum": ["single_history", "branch_local", "promoted_branch", "template", "draft"]
          },
          "story_type": {
            "enum": [
              "founding_era_story",
              "day_in_the_life_story",
              "flashpoint_story",
              "movement_story",
              "future_branch_story",
              "trade_life_story"
            ]
          },
          "era": { "type": "string" },
          "location": { "type": "string" },
          "flashpoint": { "type": "string" },
          "primary_subjects": { "$ref": "#/$defs/nonemptyStringArray" },
          "secondary_subjects": { "type": "array", "items": { "type": "string", "minLength": 1 } },
          "collision_axes": { "$ref": "#/$defs/nonemptyStringArray" },
          "tonal_modes": { "$ref": "#/$defs/nonemptyStringArray" },
          "training_targets": { "$ref": "#/$defs/nonemptyStringArray" },
          "training_usability": {
            "type": "object",
            "required": ["overall"],
            "additionalProperties": {
              "enum": [
                "training_ready",
                "reference_only",
                "not_training_data"
              ]
            }
          },
          "artifacts": {
            "type": "object",
            "additionalProperties": { "type": "string", "minLength": 1 }
          },
          "review": {
            "type": "object",
            "additionalProperties": {
              "enum": ["not_run", "accepted", "accepted_as_draft", "needs_revision", "rejected", "blocked"]
            }
          },
          "economy_hooks": { "type": "array", "items": { "type": "string", "minLength": 1 } },
          "open_lore_gaps": { "type": "array", "items": { "type": "string", "minLength": 1 } },
          "notes": { "type": "string" }
        },
        "additionalProperties": false
      }
    }
  },
  "additionalProperties": false,
  "$defs": {
    "nonemptyStringArray": {
      "type": "array",
      "minItems": 1,
      "items": { "type": "string", "minLength": 1 }
    }
  }
}