export type IdeationSource =
  | "uncovered_requirement"
  | "repeated_lesson"
  | "low_confidence_decision"
  | "escalation_pattern"
  | "compound_pattern"
  | "partial_requirement"
  | "gap_in_coverage"
  | "improvement_pattern"
  | "architecture_drift"
  | "verification_inversion"
  | "spec_ambiguity"
  | "spec_contradiction"
  | "spec_missing"
  | "external_signal"
  | "cross_project_lesson"
  | "chaos_scenario";

export type IdeationCategory =
  | "security"
  | "quality"
  | "architecture"
  | "coverage"
  | "improvement"
  | "spec"
  | "chaos";

export type IdeationAction =
  | "add_requirement"
  | "update_architecture"
  | "update_roadmap"
  | "fix_documentation"
  | "add_test"
  | "add_security_pattern"
  | "refactor"
  | "new_milestone_phase";

export type IdeationTier = "mechanical" | "backend-enriched" | "cross-project";

export interface Idea {
  id: string;
  source: IdeationSource;
  category: IdeationCategory;
  title: string;
  rationale: string;
  confidence: number;
  relatedReq?: string;
  actions: IdeationAction[];
  tier: IdeationTier;
}

export interface IdeationResult {
  project: string;
  milestone: string;
  ideas: Idea[];
  summary: IdeationSummary;
}

export interface IdeationSummary {
  total: number;
  accepted: number;
  skipped: number;
  by_category: Record<string, number>;
  by_tier: Record<string, number>;
}

export interface IdeationConfig {
  enabled: boolean;
  categories: IdeationCategory[];
  confidence_threshold: number;
  max_ideas: number;
  external_signals: {
    npm_audit: boolean;
    osv_advisories: boolean;
    dependency_staleness: boolean;
  };
  cross_project: {
    enabled: boolean;
    similarity_weight: number;
  };
  chaos: {
    enabled: boolean;
    scenarios: string[];
  };
}

export const DEFAULT_IDEATION_CONFIG: IdeationConfig = {
  enabled: true,
  categories: ["security", "quality", "architecture", "coverage", "improvement"],
  confidence_threshold: 0.6,
  max_ideas: 20,
  external_signals: {
    npm_audit: true,
    osv_advisories: true,
    dependency_staleness: true,
  },
  cross_project: {
    enabled: false,
    similarity_weight: 0.5,
  },
  chaos: {
    enabled: true,
    scenarios: ["backend_unavailable", "requirement_change", "test_coverage_drop"],
  },
};