/*!
 * SPDX-License-Identifier: AGPL-3.0-or-later
 * Copyright © 2026 Diego Lima Nogueira de Paula
 *
 * /graph-platform — Platform audit: test pyramid, harness score, performance.
 * No MCP dependency. Operates directly against SqliteStore + FS.
 */

import type { SkillHandlerPort, SkillExecutionContext } from "../../tui/skill-handler-port.js";
import { fmtElapsed } from "../shared/handler-utils.js";
import { createLogger } from "../../core/utils/logger.js";

const _log = createLogger({ layer: "core", source: "graph-platform.ts" });

export class GraphPlatformHandler implements SkillHandlerPort {
  async execute(args: string, ctx: SkillExecutionContext): Promise<string> {
    const { store, dir, onProgress } = ctx;
    const startMs = Date.now();
    const lines: string[] = ["═ /graph-platform ═"];

    // Step 1: Test pyramid analysis
    onProgress({ step: 1, total: 3, label: "Analisando pirâmide de testes...", elapsedMs: Date.now() - startMs, tokensUsed: 0 });
    try {
      const { globSync } = await import("glob");
      const testFiles = globSync("src/**/*.test.{ts,tsx}", { cwd: dir });
      const specFiles = globSync("src/**/*.spec.{ts,tsx}", { cwd: dir });
      const testDirs = new Set(testFiles.map((f) => f.split("/").slice(0, -1).join("/")));
      lines.push(`Testes: ${testFiles.length + specFiles.length} arquivos · ${testDirs.size} módulos cobertos`);
    } catch {
      lines.push("  Análise de testes: glob indisponível");
    }

    // Step 2: Harness score
    onProgress({ step: 2, total: 3, label: "Calculando harness score...", elapsedMs: Date.now() - startMs, tokensUsed: 0 });
    try {
      const { collectSrcFiles } = await import("../../core/harness/collect-src.js");
      const { evaluateProjectQuality } = await import("../../core/harness/project-quality.js");
      const files = collectSrcFiles(dir);
      const quality = evaluateProjectQuality(files);
      lines.push(`Harness Score: testes ${quality.testScore}% · logs ${quality.logScore}%`);
      lines.push(`Gate 95/95: ${quality.gate.passed ? "✓ aprovado" : "⚠ reprovado"}`);
      if (quality.darkModules.length > 0) {
        lines.push(`Módulos sem log: ${quality.darkModules.length}`);
        for (const m of quality.darkModules.slice(0, 5)) {
          lines.push(`  • ${m}`);
        }
      }
    } catch {
      lines.push("  Harness score: indisponível");
    }

    // Step 3: Graph-based audit findings
    onProgress({ step: 3, total: 3, label: "Auditando do grafo...", elapsedMs: Date.now() - startMs, tokensUsed: 0 });
    const doc = store.toGraphDocument();
    const withTests = doc.nodes.filter((n) => n.testFiles && n.testFiles.length > 0);
    const totalTasks = doc.nodes.filter((n) => n.type === "task" || n.type === "subtask").length;
    const testCoverage = totalTasks > 0 ? Math.round((withTests.length / totalTasks) * 100) : 0;
    lines.push(`Tasks com testFiles: ${withTests.length}/${totalTasks} (${testCoverage}%)`);

    lines.push("");
    lines.push("Para cobertura completa: escreva testes unitários, integração e E2E.");
    lines.push("Objetivo: 70%+ cobertura, 95/95 gate, WIP <= 1.");

    lines.push(`═ ${fmtElapsed(Date.now() - startMs)} ═`);
    return lines.join("\n");
  }
}