next.config.js

const { execSync } = require('child_process')

// Get git info at build time
const getGitInfo = () => {
  try {
    const commitHash = execSync('git rev-parse --short HEAD').toString().trim()
    const commitDate = execSync('git log -1 --format=%ci').toString().trim()
    const branch = execSync('git rev-parse --abbrev-ref HEAD').toString().trim()
    return { commitHash, commitDate, branch }
  } catch (e) {
    return { commitHash: 'unknown', commitDate: '', branch: 'unknown' }
  }
}

const gitInfo = getGitInfo()

// For deployments requiring a base path (e.g., username.github.io/repo)
// Set BASE_PATH=/yappr when needed, otherwise defaults to root
const basePath = process.env.BASE_PATH || ''

/** @type {import('next').NextConfig} */
const nextConfig = {
  basePath,
  assetPrefix: basePath,
  trailingSlash: true,
  generateBuildId: async () => gitInfo.commitHash,
  env: {
    NEXT_PUBLIC_GIT_COMMIT_HASH: gitInfo.commitHash,
    NEXT_PUBLIC_GIT_COMMIT_DATE: gitInfo.commitDate,
    NEXT_PUBLIC_GIT_BRANCH: gitInfo.branch,
    // Subpath deployments share the origin with the root deployment, so
    // client-side storage keys are namespaced by the base path (lib/storage-scope.ts).
    NEXT_PUBLIC_STORAGE_SCOPE: basePath ? basePath.replace(/^\//, '') : '',
  },
  reactStrictMode: true,
  output: 'export',
  images: {
    unoptimized: true,
    domains: ['images.unsplash.com'],
  },
  webpack: (config, { isServer }) => {
    // Optimize EvoSDK bundle size
    if (!isServer) {
      config.optimization = {
        ...config.optimization,
        splitChunks: {
          chunks: 'all',
          cacheGroups: {
            dashevo: {
              test: /[\\/]node_modules[\\/]@dashevo[\\/]/,
              name: 'evo-sdk',
              priority: 10,
              reuseExistingChunk: true,
            },
          },
        },
      }
    }

    // Handle WASM files (required for @dashevo/evo-sdk)
    config.experiments = {
      ...config.experiments,
      asyncWebAssembly: true,
    }

    return config
  },
  async headers() {
    return [
      {
        source: '/:path*',
        headers: [
          // CSP is set via <meta> tag in app/layout.tsx so it works in static exports.
          // CRITICAL: These headers are required for WASM to work
          // Using 'credentialless' instead of 'require-corp' to allow cross-origin images
          { key: 'Cross-Origin-Embedder-Policy', value: 'credentialless' },
          { key: 'Cross-Origin-Opener-Policy', value: 'same-origin' },
        ]
      }
    ]
  }
}

module.exports = nextConfig