/**
 * TIA-∞ Resurrection Engine
 * Analyzes lineage data to detect fragments, partial modules,
 * abandoned structures, and missing siblings. Produces a safe,
 * non-destructive proposal list for Guided Builder mode.
 */

import { LineageNode, LineageReport } from "./lineage";

export interface ResurrectionProposal {
  path: string;
  issue: string;
  recommendedAction: string;
}

export interface ResurrectionPlan {
  generatedAt: number;
  proposals: ResurrectionProposal[];
}

function analyzeNode(node: LineageNode, proposals: ResurrectionProposal[]) {
  // Detect empty files
  if (node.anomalies?.includes("empty-file")) {
    proposals.push({
      path: node.path,
      issue: "empty-file",
      recommendedAction: "rebuild-file",
    });
  }

  // Detect empty directories
  if (node.anomalies?.includes("empty-directory")) {
    proposals.push({
      path: node.path,
      issue: "empty-directory",
      recommendedAction: "populate-directory",
    });
  }

  // Detect missing siblings (heuristic)
  if (node.inferredRole === "processing-layer" && !node.children) {
    proposals.push({
      path: node.path,
      issue: "missing-engine-components",
      recommendedAction: "reconstruct-engine-module",
    });
  }

  // Detect suspicious naming drift
  if (node.path.toLowerCase().includes("inde.x")) {
    proposals.push({
      path: node.path,
      issue: "naming-drift",
      recommendedAction: "rename-to-index.ts",
    });
  }

  // Recurse
  if (node.children) {
    node.children.forEach((child) => analyzeNode(child, proposals));
  }
}

export function generateResurrectionPlan(report: LineageReport): ResurrectionPlan {
  const proposals: ResurrectionProposal[] = [];

  analyzeNode(report.root, proposals);

  return {
    generatedAt: Date.now(),
    proposals,
  };
}