/**
 * Seed PostgreSQL from the existing @tip/core npm package data.
 * Imports: 159 transceivers, 42 standards, 12 competitors, 11 breakouts.
 */
import { Pool } from "pg";
import { config } from "dotenv";
import { join } from "path";

config();

// Dynamic import of core package (ESM compat)
async function loadCoreData() {
  const corePath = join(__dirname, "..", "packages", "core", "src");

  // We need to use tsx to run this, so we can import .ts files directly
  const { transceivers } = await import(join(corePath, "database"));
  const { standards } = await import(join(corePath, "standards"));
  const { competitors } = await import(join(corePath, "market"));
  const { breakouts } = await import(join(corePath, "breakouts"));

  return { transceivers, standards, competitors, breakouts };
}

const pool = new Pool({
  host: process.env.POSTGRES_HOST || "localhost",
  port: parseInt(process.env.POSTGRES_PORT || "5432"),
  database: process.env.POSTGRES_DB || "transceiver_db",
  user: process.env.POSTGRES_USER || "tip",
  password: process.env.POSTGRES_PASSWORD || "tip_dev_2026",
});

function slugify(text: string): string {
  return text
    .toLowerCase()
    .replace(/[^a-z0-9]+/g, "-")
    .replace(/^-|-$/g, "");
}

async function seedVendors(client: any, competitors: readonly any[]): Promise<Map<string, string>> {
  console.log("\nSeeding vendors...");
  const vendorIdMap = new Map<string, string>();

  // Insert Flexoptix first as primary vendor
  const flexResult = await client.query(
    `INSERT INTO vendors (name, slug, type, headquarters, country, website, shop_url, is_competitor, market_position, specialties, strengths, weaknesses)
     VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)
     ON CONFLICT (name) DO UPDATE SET updated_at = NOW()
     RETURNING id`,
    [
      "FLEXOPTIX",
      "flexoptix",
      "compatible",
      "Mainz, Germany",
      "Germany",
      "https://www.flexoptix.net",
      "https://www.flexoptix.net/en/",
      false,
      "Premium compatible optics with FlexBox programmer, 300+ vendor support",
      ["compatible optics", "FlexBox", "all speeds", "premium quality"],
      ["FlexBox programmer", "300+ vendor support", "lifetime warranty", "German engineering"],
      [],
    ]
  );
  vendorIdMap.set("FLEXOPTIX", flexResult.rows[0].id);
  console.log("  Inserted: FLEXOPTIX (primary)");

  for (const comp of competitors) {
    if (comp.name === "FLEXOPTIX") continue; // Already inserted

    const typeMap: Record<string, string> = {
      OEM: "oem",
      Whitebox: "compatible",
      Manufacturer: "manufacturer",
      Distributor: "distributor",
      Compatible: "compatible",
    };

    const result = await client.query(
      `INSERT INTO vendors (name, slug, type, headquarters, is_competitor, market_position, specialties, strengths, weaknesses)
       VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
       ON CONFLICT (name) DO UPDATE SET updated_at = NOW()
       RETURNING id`,
      [
        comp.name,
        slugify(comp.name),
        typeMap[comp.type] || "oem",
        comp.headquarters,
        true,
        comp.marketPosition,
        [...comp.formFactorsOffered, ...comp.speedTiersOffered],
        comp.strengths,
        comp.weaknesses,
      ]
    );
    vendorIdMap.set(comp.name, result.rows[0].id);
    console.log(`  Inserted: ${comp.name}`);
  }

  console.log(`  Total vendors: ${vendorIdMap.size}`);
  return vendorIdMap;
}

async function seedStandards(client: any, standards: readonly any[]): Promise<Map<string, string>> {
  console.log("\nSeeding standards...");
  const standardIdMap = new Map<string, string>();

  for (const std of standards) {
    const body = std.ieeeReference?.startsWith("IEEE")
      ? "IEEE"
      : std.standard.includes("ZR")
        ? "OIF"
        : std.ieeeReference
          ? "IEEE"
          : "de_facto";

    const result = await client.query(
      `INSERT INTO standards (name, ieee_reference, body, speed, speed_gbps, lanes, lane_rate, modulation, fiber_type, wavelength, max_reach_meters, max_reach_label, connector, fec_required, form_factors, year_ratified, notes)
       VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17)
       ON CONFLICT (name) DO UPDATE SET notes = EXCLUDED.notes
       RETURNING id`,
      [
        std.standard,
        std.ieeeReference || null,
        body,
        std.speed,
        parseFloat(std.speed) || null,
        std.lanes,
        std.laneRate,
        std.modulation,
        std.fiberType,
        std.wavelength,
        std.maxReachMeters,
        std.maxReachLabel,
        std.connector,
        std.fecRequired,
        std.formFactors,
        std.yearRatified,
        std.notes,
      ]
    );
    standardIdMap.set(std.standard, result.rows[0].id);
  }

  console.log(`  Total standards: ${standardIdMap.size}`);
  return standardIdMap;
}

async function seedTransceivers(
  client: any,
  transceivers: readonly any[],
  standardIdMap: Map<string, string>
): Promise<void> {
  console.log("\nSeeding transceivers...");
  let count = 0;

  for (const t of transceivers) {
    const standardId = standardIdMap.get(t.standard) || null;

    // Detect WDM type
    let wdmType = null;
    if (t.category === "CWDM" || t.wavelengths?.includes("CWDM")) wdmType = "CWDM";
    if (t.category === "DWDM" || t.wavelengths?.includes("DWDM") || t.standard?.includes("DWDM"))
      wdmType = "DWDM";

    // Detect coherent
    const coherent =
      t.category === "Coherent" ||
      t.standard?.includes("ZR") ||
      t.modulation?.includes("DP-") ||
      false;

    await client.query(
      `INSERT INTO transceivers (
        slug, standard_name, standard_id, ieee_reference, form_factor,
        speed, speed_gbps, lanes, lane_rate, modulation,
        reach_meters, reach_label, fiber_type, wavelengths, connector,
        power_consumption_w, temp_range, category, price_tier, use_case,
        vendor_compat, tags, generation, market_status, year_introduced,
        breakout_capable, breakout_to, wdm_type, coherent
      ) VALUES (
        $1, $2, $3, $4, $5, $6, $7, $8, $9, $10,
        $11, $12, $13, $14, $15, $16, $17, $18, $19, $20,
        $21, $22, $23, $24, $25, $26, $27, $28, $29
      ) ON CONFLICT (slug) DO UPDATE SET updated_at = NOW()`,
      [
        t.id,
        t.standard,
        standardId,
        t.ieeeReference || null,
        t.formFactor,
        t.speed,
        t.speedGbps,
        t.lanes || null,
        t.laneRate || null,
        t.modulation || null,
        t.reachMeters,
        t.reachLabel,
        t.fiberType,
        t.wavelengths,
        t.connector,
        t.powerConsumptionW,
        t.tempRange,
        t.category,
        t.priceTier,
        t.useCase,
        JSON.stringify(t.vendors),
        t.tags,
        t.generation || null,
        t.marketStatus || "Mainstream",
        t.yearIntroduced || null,
        t.breakoutCapable || false,
        t.breakoutTo || null,
        wdmType,
        coherent,
      ]
    );
    count++;
  }

  console.log(`  Total transceivers: ${count}`);
}

async function seedBreakouts(client: any, breakouts: readonly any[]): Promise<void> {
  console.log("\nSeeding breakouts...");

  for (const b of breakouts) {
    await client.query(
      `INSERT INTO breakouts (slug, from_standard, to_standard, form_factor, description, cable_type, max_length, speed_per_lane)
       VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
       ON CONFLICT (slug) DO UPDATE SET from_standard = $2`,
      [b.id, b.from, b.to, b.formFactor, b.description, b.cableType, b.maxLength, b.speedPerLane]
    );
  }

  console.log(`  Total breakouts: ${breakouts.length}`);
}

async function main(): Promise<void> {
  console.log("=== TIP Seed: Importing from @tip/core ===\n");

  const { transceivers, standards, competitors, breakouts } = await loadCoreData();

  console.log(`Source data: ${transceivers.length} transceivers, ${standards.length} standards, ${competitors.length} competitors, ${breakouts.length} breakouts`);

  const client = await pool.connect();
  try {
    await client.query("BEGIN");

    const vendorIdMap = await seedVendors(client, competitors);
    const standardIdMap = await seedStandards(client, standards);
    await seedTransceivers(client, transceivers, standardIdMap);
    await seedBreakouts(client, breakouts);

    await client.query("COMMIT");
    console.log("\n=== Seed completed successfully ===");

    // Print summary
    const counts = await client.query(`
      SELECT
        (SELECT COUNT(*) FROM vendors) as vendors,
        (SELECT COUNT(*) FROM standards) as standards,
        (SELECT COUNT(*) FROM transceivers) as transceivers,
        (SELECT COUNT(*) FROM breakouts) as breakouts
    `);
    console.log("\nDatabase summary:");
    console.log(`  Vendors:      ${counts.rows[0].vendors}`);
    console.log(`  Standards:    ${counts.rows[0].standards}`);
    console.log(`  Transceivers: ${counts.rows[0].transceivers}`);
    console.log(`  Breakouts:    ${counts.rows[0].breakouts}`);
  } catch (err) {
    await client.query("ROLLBACK");
    console.error("\nSeed failed:", err);
    process.exit(1);
  } finally {
    client.release();
    await pool.end();
  }
}

main();