{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://open-delivery-spec.dev/schemas/rollback-plan.json",
  "title": "ODS Rollback Plan",
  "description": "Schema for rollback plans in the Open Delivery Spec (v1.0.0).",
  "type": "object",
  "required": [
    "release_id", "repository", "created_by", "created_at",
    "rollback_strategy", "steps", "rollback_indicators",
    "data_rollback", "communication_plan"
  ],
  "properties": {
    "release_id": {
      "type": "string",
      "pattern": "^v\\d+\\.\\d+\\.\\d+(-[a-z0-9]+)*$"
    },
    "repository": {
      "type": "string",
      "pattern": "^[a-zA-Z0-9._-]+/[a-zA-Z0-9._-]+$"
    },
    "created_by": { "type": "string" },
    "created_at": { "type": "string", "format": "date-time" },
    "rollback_strategy": {
      "type": "string",
      "enum": [
        "feature_flag", "git_revert", "previous_deployment",
        "database_restore", "blue_green_switch", "canary_scale_down",
        "traffic_shift", "config_revert", "multi_step"
      ]
    },
    "estimated_rollback_time_minutes": {
      "type": "integer",
      "minimum": 0
    },
    "tested": { "type": "boolean" },
    "last_test_timestamp": { "type": "string", "format": "date-time" },
    "steps": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": ["step", "action", "description", "verification"],
        "properties": {
          "step": { "type": "integer", "minimum": 1 },
          "action": { "type": "string" },
          "description": { "type": "string" },
          "command": { "type": "string" },
          "executor": { "type": "string" },
          "expected_duration_seconds": { "type": "integer" },
          "verification": { "type": "string" }
        }
      }
    },
    "rollback_indicators": {
      "type": "object",
      "required": ["monitoring_dashboard", "alert_channel"],
      "properties": {
        "error_rate_threshold": { "type": "string" },
        "latency_threshold": { "type": "string" },
        "monitoring_dashboard": { "type": "string" },
        "alert_channel": { "type": "string" },
        "auto_rollback": { "type": "boolean", "default": false },
        "auto_rollback_condition": { "type": "string" }
      }
    },
    "data_rollback": {
      "type": "object",
      "required": ["database_migrations", "migration_reversible", "data_loss_risk", "backup_taken"],
      "properties": {
        "database_migrations": { "type": "boolean" },
        "migration_reversible": { "type": "boolean" },
        "reverse_migration": { "type": "string" },
        "data_loss_risk": {
          "type": "string",
          "enum": ["none", "low", "medium", "high", "catastrophic"]
        },
        "backup_taken": { "type": "boolean" },
        "backup_location": { "type": "string" }
      }
    },
    "dependencies": {
      "type": "object",
      "properties": {
        "upstream_services": {
          "type": "array",
          "items": { "type": "string" }
        },
        "downstream_services": {
          "type": "array",
          "items": { "type": "string" }
        },
        "downstream_rollback_required": { "type": "boolean" },
        "downstream_compatibility": { "type": "string" }
      }
    },
    "communication_plan": {
      "type": "object",
      "required": ["notification_template"],
      "properties": {
        "stakeholders": {
          "type": "array",
          "items": { "type": "string" }
        },
        "notification_template": { "type": "string" },
        "post_rollback_actions": {
          "type": "array",
          "items": { "type": "string" }
        }
      }
    }
  }
}