#!/usr/bin/env node
import { existsSync, readFileSync } from "node:fs";
import { join } from "node:path";

const root = process.cwd();
const errors = [];
const localArtifacts = [];
const info = [];
const showLocalArtifacts =
  process.env.PROJECTBRAIN_AUDIT_VERBOSE_LOCAL_ARTIFACTS === "1";

const requireFile = (path, label = path) => {
  if (!existsSync(join(root, path))) errors.push(`Missing ${label}: ${path}`);
};

const requireText = (path, text, label = text) => {
  const fullPath = join(root, path);
  if (!existsSync(fullPath)) {
    errors.push(`Missing file for text check: ${path}`);
    return;
  }
  const content = readFileSync(fullPath, "utf8");
  if (!content.includes(text)) errors.push(`Missing ${label} in ${path}`);
};

const warnIfExists = (path, label = path) => {
  if (existsSync(join(root, path))) localArtifacts.push(`Generated or legacy artifact present: ${label}`);
};

const rootPackage = JSON.parse(readFileSync(join(root, "package.json"), "utf8"));
const backendPackage = JSON.parse(readFileSync(join(root, "backend/package.json"), "utf8"));

const parseWorkspaceAllowBuilds = (workspaceYaml) => {
  const allowed = new Set();
  const allowBuildsIndex = workspaceYaml.indexOf("allowBuilds:");
  if (allowBuildsIndex === -1) return allowed;
  const lines = workspaceYaml.slice(allowBuildsIndex).split("\n").slice(1);
  for (const line of lines) {
    if (/^[^\s#]/.test(line)) break;
    const match = line.match(/^\s*[\'"]?([^\'":]+)[\'"]?\s*:\s*(true|false)\s*(?:#.*)?$/);
    if (match && match[2] === "true") allowed.add(match[1].trim());
  }
  return allowed;
};
const workspaceAllowBuilds = existsSync(join(root, "pnpm-workspace.yaml"))
  ? parseWorkspaceAllowBuilds(readFileSync(join(root, "pnpm-workspace.yaml"), "utf8"))
  : new Set();

if (rootPackage.packageManager !== "pnpm@11.5.2") {
  errors.push("Root package.json must pin packageManager to pnpm@11.5.2 so Docker/Corepack does not float to a different pnpm release.");
}
const requiredPnpmBuiltDeps = ["@prisma/client", "@prisma/engines", "@swc/core", "esbuild", "prisma"];
for (const dependency of requiredPnpmBuiltDeps) {
  if (!workspaceAllowBuilds.has(dependency)) {
    errors.push(`pnpm-workspace.yaml allowBuilds must approve ${dependency} for Docker builds with pnpm 11.`);
  }
}

console.log("ProjectBrain doctor");
console.log("===================");

[
  "README.md",
  ".env.example",
  "backend/.env.example",
  "docs/PROJECTBRAIN_DOCUMENTATION_INDEX.md",
  "docs/FULL_VERSION_ROADMAP.md",
  "docs/VERTICAL_SLICE_CORE_FLOW_PLAN.md",
  "docs/PROJECTBRAIN_STATUS_AND_GATES.md",
  "docs/P2_LOCAL_RUNTIME_VERIFICATION.md",
  "docs/RUNTIME_ROUND_5_BACKEND_HEALTH_AND_SUITE.md",
  "docs/PROJECTBRAIN_RUNTIME_COMMANDS.md",
  "backend/scripts/smoke-p2.mjs",
  "backend/scripts/smoke-fixture-api.mjs",
  "backend/scripts/smoke-real-read-pilot.mjs",
  "backend/scripts/smoke-vertical-slice.mjs",
  "backend/scripts/smoke-runtime-suite.mjs",
  "backend/scripts/docker-entrypoint.sh",
  "scripts/check-database-readiness.mjs",
  "public/site.webmanifest",
  "public/favicon.svg",
  "public/favicon.ico",
].forEach((file) => requireFile(file));

[
  ["validate:all", "root validation"],
  ["audit:release", "release hygiene audit"],
  ["audit:runtime", "runtime readiness audit"],
  ["audit:database", "database readiness audit"],
  ["smoke:backend:fixtures", "fixture smoke"],
  ["smoke:backend:real-read-pilot", "real-read pilot smoke"],
  ["smoke:backend:vertical-slice", "vertical slice smoke"],
  ["smoke:backend:runtime-suite", "runtime suite smoke"],
  ["smoke:backend:database-suite", "database suite smoke"],
  ["smoke:backend:brainstorms", "Brainstorm CPU smoke"],
  ["smoke:backend:initiatives", "Initiative smoke"],
].forEach(([script, label]) => {
  if (!rootPackage.scripts?.[script]) errors.push(`Missing ${label} script: ${script}`);
});

[
  ["smoke:p2", "P2 database smoke"],
  ["smoke:fixtures", "fixture smoke"],
  ["smoke:real-read-pilot", "real read smoke"],
  ["smoke:vertical-slice", "vertical slice smoke"],
  ["smoke:runtime-suite", "runtime suite smoke"],
  ["smoke:database-suite", "database suite smoke"],
  ["smoke:brainstorms", "Brainstorm CPU smoke"],
  ["smoke:initiatives", "Initiative smoke"],
  ["db:deploy", "Prisma migrate deploy"],
  ["db:status", "Prisma migration status"],
  ["db:validate", "Prisma schema validate"],
].forEach(([script, label]) => {
  if (!backendPackage.scripts?.[script]) errors.push(`Missing backend ${label} script: ${script}`);
});

requireText("index.html", "<title>ProjectBrain</title>", "ProjectBrain title");
requireText("index.html", "ProjectBrain", "ProjectBrain browser metadata");
requireText("src/features/projects/pages/RuntimeReadiness.tsx", "Backend health", "backend health card");
requireText("src/features/projects/pages/RuntimeReadiness.tsx", "Database readiness", "database readiness card");
requireText("src/features/projects/pages/RuntimeReadiness.tsx", "Vertical slice smoke", "vertical slice smoke card");
requireText("src/shared/api/realClient.ts", "getHealth", "real backend health client");
requireText("src/shared/api/realClient.ts", "getSystemReadiness", "real backend system readiness client");
requireText("src/shared/hooks/useProjectData.ts", "useBackendHealthData", "backend health hook");
requireText("src/shared/hooks/useProjectData.ts", "useBackendSystemReadinessData", "backend system readiness hook");
requireText("docs/PROJECTBRAIN_STATUS_AND_GATES.md", "P2", "P2 gate documentation");

[
  "node_modules",
  "backend/node_modules",
  "dist",
  "backend/dist",
  "checkpoints",
  "src/App.css",
  "src/globals.css",
].forEach((path) => warnIfExists(path));

info.push(`Package manager: ${rootPackage.packageManager ?? "not pinned"}`);
info.push(`Approved pnpm workspace allowBuilds: ${Array.from(workspaceAllowBuilds).sort().join(", ") || "none"}`);
info.push(`Frontend package: ${rootPackage.name}@${rootPackage.version}`);
info.push(`Backend package: ${backendPackage.name}@${backendPackage.version}`);
info.push("Recommended local command order:");
info.push("  1. pnpm install");
info.push("  2. pnpm run audit:database");
info.push("  3. pnpm run validate:all");
info.push("  4. pnpm run audit:all");
info.push("  5. docker compose up -d --build");
info.push("  6. pnpm run smoke:backend:system-readiness");
info.push("  7. pnpm run smoke:backend:runtime-suite && pnpm --filter projectbrain-api run smoke:blueprints");
info.push("  8. pnpm run smoke:backend:database-suite");

for (const line of info) console.log(`INFO  ${line}`);
if (showLocalArtifacts) {
  for (const line of localArtifacts) console.log(`INFO  ${line}`);
}
for (const line of errors) console.error(`FAIL  ${line}`);

if (errors.length) {
  console.error(`\nFAIL: ${errors.length} blocking doctor issue(s) found.`);
  process.exit(1);
}

console.log("\nPASS: ProjectBrain doctor found no blocking runtime/release scaffold issues.");