/**
 * JobsBoard Milestone Scaler (5,000+ Real Jobs)
 *
 * Ingests from confirmed, diverse, permitted sources across:
 * - Enterprise Tech & Infrastructure (MongoDB, Elastic, Okta, Cloudflare, Datadog, Stripe, Toast, PagerDuty, Fastly, Asana, Cockroach Labs, Webflow)
 * - Healthcare & Biotech (Komodo Health, Veracyte, Doximity)
 * - Media & Climate Tech (Vox Media, BuzzFeed, Watershed, Mark43, Nava PBC)
 * - High-Growth Startups & AI via Ashby (ElevenLabs, Cohere, Cursor/Anysphere, Vanta, Midjourney, Quora, Notion, Ramp, OpenAI)
 * - Explicit exclusions: Palantir
 */

const { PrismaClient } = require("@prisma/client");
const prisma = new PrismaClient();
const crypto = require("crypto");

const EXCLUDED_IDENTIFIERS = new Set(["palantir", "lever_palantir", "gh_palantir"]);

function normalizeJobUrl(rawUrl) {
  try {
    const parsed = new URL(rawUrl.trim());
    const trackingParams = [
      "utm_source", "utm_medium", "utm_campaign", "utm_term", "utm_content",
      "ref", "source", "gh_src", "lever-source", "ashby_jid", "referrer"
    ];
    for (const p of trackingParams) {
      parsed.searchParams.delete(p);
    }
    let clean = parsed.toString();
    if (clean.endsWith("/") && parsed.pathname !== "/") {
      clean = clean.slice(0, -1);
    }
    return clean;
  } catch {
    return rawUrl.trim();
  }
}

function generateJobUrlHash(url) {
  return crypto.createHash("sha256").update(normalizeJobUrl(url)).digest("hex");
}

function generateContentFingerprint(company, title, location, isRemote) {
  const normComp = (company || "").toLowerCase().replace(/[^a-z0-9]/g, "").trim();
  const normTitle = (title || "")
    .toLowerCase()
    .replace(/\b(senior|sr\.?|junior|jr\.?|lead|staff|principal)\b/g, "")
    .replace(/[^a-z0-9]/g, "")
    .trim();
  const normLoc = (location || "").toLowerCase().replace(/[^a-z0-9]/g, "").trim();
  const remoteFlag = isRemote ? "remote" : "onsite";
  return crypto.createHash("sha256").update(`${normComp}:${normTitle}:${normLoc}:${remoteFlag}`).digest("hex");
}

const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));

async function ingestGreenhouse(boardToken, companyName, limit = 150) {
  if (EXCLUDED_IDENTIFIERS.has(boardToken.toLowerCase())) return null;

  const start = Date.now();
  const url = `https://boards-api.greenhouse.io/v1/boards/${boardToken}/jobs?content=true`;
  const res = await fetch(url, { headers: { "User-Agent": "JobsBoard-Acquisition/1.0" } });
  if (!res.ok) {
    console.log(`[WARN] Greenhouse ${companyName} returned HTTP ${res.status}`);
    return null;
  }

  const data = await res.json();
  const rawJobs = (data.jobs || []).slice(0, limit);
  let created = 0;
  let updated = 0;
  let duplicates = 0;

  for (const item of rawJobs) {
    const title = (item.title || "").trim();
    const rawUrl = item.absolute_url || "";
    if (!title || !rawUrl) continue;

    const jobUrl = normalizeJobUrl(rawUrl);
    const urlHash = generateJobUrlHash(jobUrl);
    const location = item.location?.name || "Remote, USA";
    const isRemote =
      location.toLowerCase().includes("remote") ||
      title.toLowerCase().includes("remote") ||
      location.toLowerCase().includes("anywhere");
    const dept = item.departments?.[0]?.name || "General";
    const cleanDesc = (item.content || "").replace(/<[^>]+>/g, " ").replace(/\s+/g, " ").trim();
    const fingerprint = generateContentFingerprint(companyName, title, location, isRemote);

    const existing = await prisma.job.findUnique({ where: { jobUrlHash: urlHash } });
    if (existing) {
      await prisma.job.update({
        where: { id: existing.id },
        data: {
          lastSeenAt: new Date(),
          missingScanCount: 0,
          lifecycleStatus: "ACTIVE",
          title,
          description: cleanDesc.slice(0, 5000) || `Position at ${companyName}.`,
        },
      });
      updated++;
    } else {
      const fpMatch = await prisma.job.findFirst({ where: { fingerprintHash: fingerprint } });
      if (fpMatch) duplicates++;

      await prisma.job.create({
        data: {
          jobUrlHash: urlHash,
          fingerprintHash: fingerprint,
          title,
          company: companyName,
          location,
          isRemote,
          department: dept,
          experienceLevel: title.toLowerCase().includes("senior") ? "Senior" : "Mid-Level",
          description: cleanDesc.slice(0, 5000) || `Position at ${companyName}.`,
          jobUrl,
          source: "greenhouse",
          sourceId: `gh_${boardToken}`,
          moderationStatus: "APPROVED",
          lifecycleStatus: "ACTIVE",
          firstSeenAt: new Date(),
          lastSeenAt: new Date(),
          missingScanCount: 0,
          datePosted: item.updated_at ? new Date(item.updated_at) : new Date(),
        },
      });
      created++;
    }
  }

  const durationMs = Date.now() - start;
  const dbSource = await prisma.jobSource.upsert({
    where: { provider_identifier: { provider: "greenhouse", identifier: `gh_${boardToken}` } },
    update: {
      lastRunAt: new Date(),
      lastSuccessAt: new Date(),
      jobsDiscoveredLastRun: rawJobs.length,
      jobsCreatedLastRun: created,
      jobsUpdatedLastRun: updated,
      status: "ACTIVE",
      averageDurationMs: durationMs,
    },
    create: {
      name: companyName,
      type: "ATS",
      provider: "greenhouse",
      baseUrl: `https://boards.greenhouse.io/${boardToken}`,
      identifier: `gh_${boardToken}`,
      status: "ACTIVE",
      lastRunAt: new Date(),
      lastSuccessAt: new Date(),
      jobsDiscoveredLastRun: rawJobs.length,
      jobsCreatedLastRun: created,
      jobsUpdatedLastRun: updated,
    },
  });

  await prisma.sourceExecutionLog.create({
    data: {
      sourceId: dbSource.id,
      status: "SUCCESS",
      durationMs,
      discoveredCount: rawJobs.length,
      createdCount: created,
      updatedCount: updated,
      duplicateCount: duplicates,
    },
  });

  console.log(`[PASS Greenhouse] ${companyName}: Discovered=${rawJobs.length}, Created=${created}, Updated=${updated} (${durationMs}ms)`);
  return { companyName, discovered: rawJobs.length, created, updated };
}

async function ingestAshby(boardToken, companyName, limit = 150) {
  if (EXCLUDED_IDENTIFIERS.has(boardToken.toLowerCase())) return null;

  const start = Date.now();
  const url = `https://api.ashbyhq.com/posting-api/job-board/${boardToken}`;
  const res = await fetch(url, { headers: { "User-Agent": "JobsBoard-Acquisition/1.0" } });
  if (!res.ok) {
    console.log(`[WARN] Ashby ${companyName} returned HTTP ${res.status}`);
    return null;
  }

  const data = await res.json();
  const rawJobs = (data.jobs || []).slice(0, limit);
  let created = 0;
  let updated = 0;
  let duplicates = 0;

  for (const item of rawJobs) {
    const title = (item.title || "").trim();
    const rawUrl = item.applyUrl || item.jobUrl || "";
    if (!title || !rawUrl) continue;

    const jobUrl = normalizeJobUrl(rawUrl);
    const urlHash = generateJobUrlHash(jobUrl);
    const location = item.location || "Remote, USA";
    const isRemote = item.isRemote || location.toLowerCase().includes("remote") || title.toLowerCase().includes("remote");
    const dept = item.department || "General";
    const cleanDesc = (item.descriptionPlain || item.descriptionHtml || "")
      .replace(/<[^>]+>/g, " ")
      .replace(/\s+/g, " ")
      .trim();
    const fingerprint = generateContentFingerprint(companyName, title, location, isRemote);

    const existing = await prisma.job.findUnique({ where: { jobUrlHash: urlHash } });
    if (existing) {
      await prisma.job.update({
        where: { id: existing.id },
        data: {
          lastSeenAt: new Date(),
          missingScanCount: 0,
          lifecycleStatus: "ACTIVE",
          title,
          description: cleanDesc.slice(0, 5000) || `Position at ${companyName}.`,
        },
      });
      updated++;
    } else {
      const fpMatch = await prisma.job.findFirst({ where: { fingerprintHash: fingerprint } });
      if (fpMatch) duplicates++;

      await prisma.job.create({
        data: {
          jobUrlHash: urlHash,
          fingerprintHash: fingerprint,
          title,
          company: companyName,
          location,
          isRemote,
          department: dept,
          experienceLevel: title.toLowerCase().includes("senior") ? "Senior" : "Mid-Level",
          description: cleanDesc.slice(0, 5000) || `Position at ${companyName}.`,
          jobUrl,
          source: "ashby",
          sourceId: `ashby_${boardToken}`,
          moderationStatus: "APPROVED",
          lifecycleStatus: "ACTIVE",
          firstSeenAt: new Date(),
          lastSeenAt: new Date(),
          missingScanCount: 0,
          datePosted: item.publishedAt ? new Date(item.publishedAt) : new Date(),
        },
      });
      created++;
    }
  }

  const durationMs = Date.now() - start;
  const dbSource = await prisma.jobSource.upsert({
    where: { provider_identifier: { provider: "ashby", identifier: `ashby_${boardToken}` } },
    update: {
      lastRunAt: new Date(),
      lastSuccessAt: new Date(),
      jobsDiscoveredLastRun: rawJobs.length,
      jobsCreatedLastRun: created,
      jobsUpdatedLastRun: updated,
      status: "ACTIVE",
      averageDurationMs: durationMs,
    },
    create: {
      name: companyName,
      type: "ATS",
      provider: "ashby",
      baseUrl: `https://jobs.ashbyhq.com/${boardToken}`,
      identifier: `ashby_${boardToken}`,
      status: "ACTIVE",
      lastRunAt: new Date(),
      lastSuccessAt: new Date(),
      jobsDiscoveredLastRun: rawJobs.length,
      jobsCreatedLastRun: created,
      jobsUpdatedLastRun: updated,
    },
  });

  await prisma.sourceExecutionLog.create({
    data: {
      sourceId: dbSource.id,
      status: "SUCCESS",
      durationMs,
      discoveredCount: rawJobs.length,
      createdCount: created,
      updatedCount: updated,
      duplicateCount: duplicates,
    },
  });

  console.log(`[PASS Ashby] ${companyName}: Discovered=${rawJobs.length}, Created=${created}, Updated=${updated} (${durationMs}ms)`);
  return { companyName, discovered: rawJobs.length, created, updated };
}

async function main() {
  console.log("=================================================");
  console.log("  SCALING TO MILESTONE: 5,000+ REAL JOBS         ");
  console.log("=================================================\n");

  const startJobCount = await prisma.job.count();
  console.log(`Current Database Job Count: ${startJobCount}\n`);

  const greenhouseSources = [
    { token: "mongodb", name: "MongoDB", limit: 150 },
    { token: "elastic", name: "Elastic", limit: 150 },
    { token: "okta", name: "Okta", limit: 150 },
    { token: "stripe", name: "Stripe", limit: 200 },
    { token: "datadog", name: "Datadog", limit: 200 },
    { token: "cloudflare", name: "Cloudflare", limit: 150 },
    { token: "toast", name: "Toast", limit: 150 },
    { token: "asana", name: "Asana", limit: 100 },
    { token: "robinhood", name: "Robinhood", limit: 100 },
    { token: "fastly", name: "Fastly", limit: 50 },
    { token: "pagerduty", name: "PagerDuty", limit: 50 },
    { token: "cockroachlabs", name: "Cockroach Labs", limit: 30 },
    { token: "komodohealth", name: "Komodo Health", limit: 35 },
    { token: "veracyte", name: "Veracyte", limit: 35 },
    { token: "doximity", name: "Doximity", limit: 20 },
    { token: "voxmedia", name: "Vox Media", limit: 20 },
    { token: "mark43", name: "Mark43", limit: 35 },
    { token: "navapbc", name: "Nava PBC", limit: 20 },
    { token: "watershed", name: "Watershed", limit: 15 },
    { token: "airtable", name: "Airtable", limit: 20 },
    { token: "webflow", name: "Webflow", limit: 30 },
    { token: "blend", name: "Blend", limit: 15 },
  ];

  const ashbySources = [
    { token: "elevenlabs", name: "ElevenLabs", limit: 150 },
    { token: "cohere", name: "Cohere", limit: 150 },
    { token: "cursor", name: "Anysphere (Cursor)", limit: 120 },
    { token: "vanta", name: "Vanta", limit: 100 },
    { token: "notion", name: "Notion", limit: 120 },
    { token: "ramp", name: "Ramp", limit: 120 },
    { token: "openai", name: "OpenAI", limit: 150 },
    { token: "midjourney", name: "Midjourney", limit: 20 },
    { token: "quora", name: "Quora", limit: 10 },
  ];

  for (const s of greenhouseSources) {
    try {
      await ingestGreenhouse(s.token, s.name, s.limit);
      await sleep(150);
    } catch (err) {
      console.error(`[ERR] ${s.name}:`, err.message);
    }
  }

  for (const s of ashbySources) {
    try {
      await ingestAshby(s.token, s.name, s.limit);
      await sleep(150);
    } catch (err) {
      console.error(`[ERR] ${s.name}:`, err.message);
    }
  }

  const endJobCount = await prisma.job.count();
  const netAdded = endJobCount - startJobCount;
  const totalSources = await prisma.jobSource.count();
  const totalLogs = await prisma.sourceExecutionLog.count();

  console.log("\n=================================================");
  console.log("  MILESTONE 1 RESULTS (5,000+ REAL JOBS)         ");
  console.log("=================================================");
  console.log(`  Initial Jobs:              ${startJobCount}`);
  console.log(`  Final Jobs:                ${endJobCount} (+${netAdded} real jobs added)`);
  console.log(`  Active Registered Sources: ${totalSources}`);
  console.log(`  Total Audit Logs:          ${totalLogs}`);
  console.log("=================================================\n");

  await prisma.$disconnect();
}

main().catch(err => {
  console.error("Scaler failed:", err);
  process.exit(1);
});