import assert from 'node:assert/strict';
import { chmod, mkdtemp, rm, writeFile } from 'node:fs/promises';
import os from 'node:os';
import path from 'node:path';
import test from 'node:test';
import { spawnOpenCode } from './opencode-cli.js';
const findEnvKey = (name) => Object.keys(process.env).find((key) => key.toLowerCase() === name.toLowerCase()) || name;
async function createFakeOpenCodeExecutable(binDir) {
    const scriptPath = path.join(binDir, 'opencode.js');
    await writeFile(scriptPath, `
const events = [
  { type: 'text', sessionID: 'open-live-1', text: 'assistant response' },
  { type: 'step_finish', sessionID: 'open-live-1' },
];

for (const event of events) {
  console.log(JSON.stringify(event));
}
`, 'utf8');
    if (process.platform === 'win32') {
        const commandPath = path.join(binDir, 'opencode.cmd');
        await writeFile(commandPath, '@echo off\r\nnode "%~dp0opencode.js" %*\r\n', 'utf8');
        return;
    }
    const commandPath = path.join(binDir, 'opencode');
    await writeFile(commandPath, '#!/bin/sh\nnode "$(dirname "$0")/opencode.js" "$@"\n', 'utf8');
    await chmod(commandPath, 0o755);
}
test('spawnOpenCode emits session_created before normalized live messages for new sessions', async () => {
    const tempRoot = await mkdtemp(path.join(os.tmpdir(), 'opencode-cli-live-'));
    const pathKey = findEnvKey('PATH');
    const pathExtKey = findEnvKey('PATHEXT');
    const previousPath = process.env[pathKey];
    const previousPathExt = process.env[pathExtKey];
    const messages = [];
    const writer = {
        userId: null,
        sessionId: null,
        send(message) {
            messages.push(message);
        },
        setSessionId(sessionId) {
            this.sessionId = sessionId;
        },
    };
    try {
        await createFakeOpenCodeExecutable(tempRoot);
        process.env[pathKey] = `${tempRoot}${path.delimiter}${previousPath || ''}`;
        if (process.platform === 'win32') {
            process.env[pathExtKey] = previousPathExt?.toUpperCase().includes('.CMD')
                ? previousPathExt
                : `.COM;.EXE;.BAT;.CMD${previousPathExt ? `;${previousPathExt}` : ''}`;
        }
        await spawnOpenCode('Hi', { cwd: tempRoot }, writer);
        const sessionCreatedIndex = messages.findIndex((message) => message.kind === 'session_created');
        const assistantDeltaIndex = messages.findIndex((message) => message.kind === 'stream_delta' && message.content === 'assistant response');
        const streamEnd = messages.find((message) => message.kind === 'stream_end');
        const complete = messages.find((message) => message.kind === 'complete');
        assert.notEqual(sessionCreatedIndex, -1);
        assert.notEqual(assistantDeltaIndex, -1);
        assert.ok(sessionCreatedIndex < assistantDeltaIndex);
        assert.equal(messages[sessionCreatedIndex].newSessionId, 'open-live-1');
        assert.equal(writer.sessionId, 'open-live-1');
        assert.equal(streamEnd?.sessionId, 'open-live-1');
        assert.equal(complete?.sessionId, 'open-live-1');
        assert.equal(messages.some((message) => message.kind === 'error'), false);
    }
    finally {
        if (previousPath === undefined) {
            delete process.env[pathKey];
        }
        else {
            process.env[pathKey] = previousPath;
        }
        if (previousPathExt === undefined) {
            delete process.env[pathExtKey];
        }
        else {
            process.env[pathExtKey] = previousPathExt;
        }
        await rm(tempRoot, { recursive: true, force: true });
    }
});
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