#!/usr/bin/env node

/**
 * Setup Stripe Products and Prices for Koha Donation System
 * Creates the "Tractatus Framework Support" product and all required price tiers
 */

require('dotenv').config();
const stripe = require('stripe')(process.env.STRIPE_SECRET_KEY);
const fs = require('fs');
const path = require('path');

// Multi-currency conversion rates (approximate, for initial setup)
// Stripe will handle actual conversion at checkout time
const CURRENCY_OPTIONS = {
  usd: { unit_amount: 320 },  // ~$3.20 USD
  eur: { unit_amount: 290 },  // ~€2.90 EUR
  gbp: { unit_amount: 250 },  // ~£2.50 GBP
  aud: { unit_amount: 480 },  // ~$4.80 AUD
  cad: { unit_amount: 430 },  // ~$4.30 CAD
  jpy: { unit_amount: 48000 }, // ~¥480 JPY (yen has no decimals)
  chf: { unit_amount: 280 },  // ~CHF 2.80
  sgd: { unit_amount: 430 },  // ~$4.30 SGD
  hkd: { unit_amount: 2500 }  // ~$25 HKD
};

const TIER_CONFIGS = {
  foundation: {
    name: 'Foundation',
    nzd_amount: 500, // $5.00 NZD
    multiplier: 1,
    description: 'Essential support for hosting and infrastructure. Every contribution counts.'
  },
  advocate: {
    name: 'Advocate',
    nzd_amount: 1500, // $15.00 NZD
    multiplier: 3,
    description: 'Support development and research. Help expand the framework\'s capabilities.'
  },
  champion: {
    name: 'Champion',
    nzd_amount: 5000, // $50.00 NZD
    multiplier: 10,
    description: 'Sustained support for community building and advanced features.'
  }
};

async function setupStripeProducts() {
  console.log('\n🚀 Setting up Stripe products and prices for Koha donation system...\n');

  try {
    // Step 1: Create or find the product
    console.log('📦 Step 1: Creating product "Tractatus Framework Support"...');

    // Check if product already exists
    const existingProducts = await stripe.products.search({
      query: 'name:"Tractatus Framework Support"',
    });

    let product;
    if (existingProducts.data.length > 0) {
      product = existingProducts.data[0];
      console.log(`✅ Product already exists: ${product.id}`);
    } else {
      product = await stripe.products.create({
        name: 'Tractatus Framework Support',
        description: 'Koha (reciprocal gift) to support the Tractatus AI Safety Framework - architectural safeguards for AI governance that preserve human agency and pluralistic values.',
        metadata: {
          project: 'tractatus',
          type: 'koha_donation'
        }
      });
      console.log(`✅ Created product: ${product.id}`);
    }

    // Step 2: Create monthly subscription prices for each tier
    console.log('\n💰 Step 2: Creating monthly subscription prices...\n');

    const createdPrices = {};

    for (const [tierKey, tierConfig] of Object.entries(TIER_CONFIGS)) {
      console.log(`   Creating ${tierConfig.name} tier ($${tierConfig.nzd_amount / 100} NZD/month)...`);

      // Calculate currency options for this tier
      const currencyOptions = {};
      for (const [currency, baseAmount] of Object.entries(CURRENCY_OPTIONS)) {
        currencyOptions[currency] = {
          unit_amount: Math.round(baseAmount.unit_amount * tierConfig.multiplier)
        };
      }

      try {
        const price = await stripe.prices.create({
          product: product.id,
          currency: 'nzd',
          unit_amount: tierConfig.nzd_amount,
          recurring: {
            interval: 'month',
            interval_count: 1
          },
          currency_options: currencyOptions,
          nickname: `Koha ${tierConfig.name} - Monthly`,
          metadata: {
            tier: tierKey,
            tier_name: tierConfig.name,
            description: tierConfig.description
          }
        });

        createdPrices[tierKey] = price.id;
        console.log(`   ✅ Created: ${price.id}`);

      } catch (error) {
        console.error(`   ❌ Error creating ${tierConfig.name} price:`, error.message);
      }
    }

    // Step 3: Display results and generate .env updates
    console.log('\n✅ Stripe setup complete!\n');
    console.log('📋 Product and Price IDs:\n');
    console.log(`STRIPE_KOHA_PRODUCT_ID=${product.id}`);
    console.log(`STRIPE_KOHA_5_PRICE_ID=${createdPrices.foundation || 'NOT_CREATED'}`);
    console.log(`STRIPE_KOHA_15_PRICE_ID=${createdPrices.advocate || 'NOT_CREATED'}`);
    console.log(`STRIPE_KOHA_50_PRICE_ID=${createdPrices.champion || 'NOT_CREATED'}`);

    console.log('\n📝 Next steps:');
    console.log('   1. Update .env file with the price IDs above');
    console.log('   2. Create webhook endpoint for: ' + (process.env.FRONTEND_URL || 'http://localhost:9000') + '/api/koha/webhook');
    console.log('   3. Update STRIPE_KOHA_WEBHOOK_SECRET in .env');
    console.log('   4. Test with Stripe test cards\n');

    // Step 4: Save IDs to a JSON file for easy reference
    const idsFilePath = path.join(__dirname, '..', '.stripe-ids.json');
    const idsData = {
      product_id: product.id,
      prices: {
        foundation_5_nzd: createdPrices.foundation,
        advocate_15_nzd: createdPrices.advocate,
        champion_50_nzd: createdPrices.champion
      },
      created_at: new Date().toISOString(),
      mode: 'test'
    };

    fs.writeFileSync(idsFilePath, JSON.stringify(idsData, null, 2));
    console.log(`💾 Saved IDs to ${idsFilePath}\n`);

  } catch (error) {
    console.error('\n❌ Setup failed:', error.message);
    console.error('\nFull error:', error);
    process.exit(1);
  }
}

setupStripeProducts();