import {
  spawnSync
} from 'node:child_process';
import * as e from './common.mjs';
function command(cmd, args, opts={
}){
  const r=spawnSync(cmd, args, {
    encoding:'utf8',
    ...opts
  });
  if(r.status!==0)e.fail(r.error?.message??`Command failed (${r.status}): ${cmd}`);
  return r.stdout;
}
export function main(){
  const a=e.cli(['output'], {
    zig:'zig',
    optimize:'ReleaseSafe'
  }),
  repo=e.ROOT,
  output=e.path.resolve(a.output);
  e.fs.mkdirSync(output, {
    recursive:true
  });
  const version=command(a.zig, ['version']).trim();
  if(version!=='0.14.1')e.fail('Zig 0.14.1 required; found '+version);
  const zon=e.readText(e.path.join(repo, 'protocol/build.zig.zon')),
  pkg=zon.match(/\.hash\s*=\s*"(protobuf-[^"]+)"/)?.[1];
  if(!pkg)e.fail('Missing protobuf package hash');
  const cache=process.env.ZIG_GLOBAL_CACHE_DIR??e.path.join(e.os.homedir(), '.cache/zig'),
  protobuf=e.path.join(cache, 'p', pkg, 'src/protobuf.zig');
  if(!e.fs.existsSync(protobuf))e.fail('Cached protobuf dependency not found: '+protobuf);
  const scratch=e.fs.mkdtempSync(e.path.join(output, 'gridfight-test-'));
  e.fs.cpSync(e.path.join(repo, 'gameserver/src'), e.path.join(scratch, 'source/src'), {
    recursive:true
  });
  e.fs.cpSync(e.path.join(repo, 'protocol/src'), e.path.join(scratch, 'protocol'), {
    recursive:true
  });
  const runtime=e.path.join(scratch, 'runtime');
  e.fs.mkdirSync(runtime);
  e.fs.symlinkSync(e.path.join(repo, 'resources'), e.path.join(runtime, 'resources'), 'dir');
  const entry=e.path.join(scratch, 'source/src/gridfight_test_root.zig');
  e.fs.writeFileSync(entry, 'const std = @import("std");\ntest "GridFight imports" { std.testing.refAllDecls(@import("services/grid_fight.zig")); }\n');
  const executable=e.path.join(scratch, 'gridfight-tests'),
  args=['test', `-O${a.optimize}`, '--dep', 'protocol', `-Mroot=${entry}`, '--dep', 'protobuf', `-Mprotocol=${e.path.join(scratch,'protocol/root.zig')}`, `-Mprotobuf=${protobuf}`, '--cache-dir', e.path.join(output, 'test-cache'), '--global-cache-dir', e.path.join(output, 'zig-cache'), `-femit-bin=${executable}`, '--test-no-exec'];
  function logged(cmd, args, log, opts){
    const fd=e.fs.openSync(e.path.join(output, log), 'w');
    try{
      command(cmd, args, {
        ...opts,
        stdio:['ignore', fd, fd]
      });
    } finally{
      e.fs.closeSync(fd);
    }
  }
  logged(a.zig, args, 'test-build.log', {
    cwd:scratch
  });
  logged(executable, [], 'tests.log', {
    cwd:runtime,
    env:{
      ...process.env,
      GRIDFIGHT_TEST_RUNTIME:runtime
    }
  });
  const text=e.readText(e.path.join(output, 'tests.log')),
  m=text.match(/All (\d+) tests passed\./);
  if(text.includes('SKIP')||!m)e.fail('Skipped or incomplete suite; inspect tests.log');
  e.atomic_json(e.path.join(output, 'test-result.json'), {
    zig:version,
    tests_passed:Number(m[1]),
    runtime,
    gameplay_verified:false
  }, 2, true);
  process.stdout.write(text);
}
e.runMain(import.meta.url, main);