// Compile the portable documentation examples with real Mbed TLS, no device/network.
const fs = require('node:fs');
const os = require('node:os');
const path = require('node:path');
const crypto = require('node:crypto');
const { execFileSync } = require('node:child_process');
const { vectors } = require('../docs/embedded-signing-reference.cjs');
const compiler = process.env.VL_HOST_CC || 'E:/Qt/Tools/mingw1120_64/bin/gcc.exe';
const tls = process.env.VL_MBEDTLS_DIR || 'E:/Codex/toolchains/esp-idf-v5.5.1/components/mbedtls/mbedtls';
const sources = path.resolve(__dirname, '../docs/device-protocol-c');
const output = fs.mkdtempSync(path.join(os.tmpdir(), 'vl-protocol-test-'));
const vector = vectors();
const key = Buffer.from(vector.testKeyHex, 'hex');
const payload = '{"device_id":"OFFLINE-TEST","server_time_ms":1789459200000}';
const base64 = Buffer.from(payload).toString('base64url');
const hmac = text => crypto.createHmac('sha256', key).update(text).digest('hex');
const sha = text => crypto.createHash('sha256').update(text).digest('hex');
const definitions = { TEST_KEY: vector.testKeyHex, BODY_SHA: vector.bodySha256,
  HTTP_SIGNATURE: vector.signature, EMPTY_SHA: sha(''), ABC_SHA: sha('abc'),
  PAYLOAD_JSON: payload, PAYLOAD_B64: base64, TIME_MAC: hmac('TIME1\n' + base64), CFG_MAC: hmac('CFG1\n' + base64) };
fs.writeFileSync(path.join(output, 'vectors.generated.h'), Object.entries(definitions)
  .map(([name, value]) => `#define ${name} ${JSON.stringify(value)}`).join('\n'));
const exe = path.join(output, 'test-protocol.exe');
const args = ['-std=c99', '-Wall', '-Wextra', '-Werror', '-O2',
  '-DMBEDTLS_CONFIG_FILE="host_mbedtls_config.h"', '-I' + sources, '-I' + output,
  '-I' + path.join(tls, 'include'), '-I' + path.join(tls, 'library'),
  path.join(sources, 'vl_protocol.c'), path.join(sources, 'test_protocol.c'),
  ...['md.c', 'sha256.c', 'base64.c', 'platform.c', 'platform_util.c', 'constant_time.c'].map(file => path.join(tls, 'library', file)),
  '-o', exe];
const env = { ...process.env, PATH: path.dirname(compiler) + path.delimiter + process.env.PATH };
execFileSync(compiler, args, { stdio: 'inherit', windowsHide: true, env });
process.stdout.write(execFileSync(exe, [], { encoding: 'utf8', windowsHide: true, env }));
console.log(JSON.stringify({ output, networkRequests: 0, liveDeviceKeysUsed: false }));