#!/usr/bin/env python3
"""
发送解析任务到 Kafka（供 Flink 消费）
"""
import json
import time
import sys
import os

# Kafka 配置
KAFKA_BOOTSTRAP_SERVERS = "10.192.72.13:9092"
KAFKA_TASK_TOPIC = "parse-tasks"  # 任务消息 topic

# 测试文件
TEST_FILES = [
    "/Users/chaizi/Work/Projects/yusys/ai-study/code/four-level-schedule/duomotai/examples/5.docx",
    "/Users/chaizi/Work/Projects/yusys/ai-study/code/four-level-schedule/duomotai/examples/20以内口算.pdf",
]


def send_task_to_kafka(producer, file_path, task_id=None):
    """发送单个任务到 Kafka"""
    import uuid

    if task_id is None:
        task_id = f"task-{uuid.uuid4().hex[:8]}"

    task_message = {
        "taskId": task_id,
        "filePath": file_path,
        "fileName": os.path.basename(file_path),
        "timestamp": int(time.time() * 1000),
        "priority": "normal"
    }

    print(f"发送任务: taskId={task_id}, file={task_message['fileName']}")

    try:
        future = producer.send(KAFKA_TASK_TOPIC, task_message)
        future.get(timeout=10)
        print(f"  ✅ 任务已发送到 Kafka topic: {KAFKA_TASK_TOPIC}")
        return True
    except Exception as e:
        print(f"  ❌ 发送失败: {e}")
        return False


def main():
    print("\n")
    print("╔" + "=" * 58 + "╗")
    print("║" + " " * 10 + "发送解析任务到 Kafka" + " " * 26 + "║")
    print("╚" + "=" * 58 + "╝")
    print()
    print(f"流程: 任务消息 → Kafka ({KAFKA_TASK_TOPIC}) → Flink → parse-service → ...")
    print()

    # 检查文件
    valid_files = []
    for file_path in TEST_FILES:
        if os.path.exists(file_path):
            valid_files.append(file_path)
            print(f"✅ 文件存在: {os.path.basename(file_path)}")
        else:
            print(f"❌ 文件不存在: {file_path}")

    if not valid_files:
        print("\n没有有效的测试文件!")
        return 1

    # 初始化 Kafka Producer
    print("\n初始化 Kafka Producer...")
    try:
        from kafka import KafkaProducer
        producer = KafkaProducer(
            bootstrap_servers=KAFKA_BOOTSTRAP_SERVERS.split(","),
            value_serializer=lambda v: json.dumps(v, ensure_ascii=False).encode("utf-8"),
            retries=3,
            acks="all"
        )
        print(f"✅ Kafka Producer 初始化成功: {KAFKA_BOOTSTRAP_SERVERS}")
    except Exception as e:
        print(f"❌ Kafka Producer 初始化失败: {e}")
        print("   请确保 kafka-python 已安装: pip install kafka-python")
        return 1

    # 发送任务
    print()
    print("=" * 60)
    print(f"发送 {len(valid_files)} 个任务到 Kafka...")
    print("=" * 60)
    print()

    success_count = 0
    for file_path in valid_files:
        if send_task_to_kafka(producer, file_path):
            success_count += 1
        time.sleep(0.5)

    producer.close()

    # 总结
    print()
    print("=" * 60)
    print("发送完成!")
    print("=" * 60)
    print(f"总计: {len(valid_files)}")
    print(f"成功: {success_count}")
    print()
    print("接下来:")
    print(f"  1. 启动 Flink Job 消费 topic: {KAFKA_TASK_TOPIC}")
    print("  2. Flink 会调用 parse-service 解析文件")
    print("  3. 解析结果发送到 embedding-topic")
    print("  4. schedule-embedding-api 消费并索引到 ES")
    print()

    return 0 if success_count == len(valid_files) else 1


if __name__ == "__main__":
    sys.exit(main())