package rocketmq

import (
	"context"
	"errors"

	"git.shuncheng.lu/bigthing/gocommon/pkg/internal/util"
	"git.shuncheng.lu/bigthing/gocommon/pkg/logger"
	"github.com/apache/rocketmq-client-go/v2/consumer"
	"github.com/apache/rocketmq-client-go/v2/primitive"
	"github.com/apache/rocketmq-client-go/v2/producer"
)

// logger config
var (
	infoc            = logger.Infoc
	errorc           = logger.Errorc
	loggerTraceIdKey = logger.TraceIdKey
)

func SetLoggerInfoc(foo func(ctx context.Context, format string, v ...interface{})) {
	infoc = foo
}
func SetLoggerErrorc(foo func(ctx context.Context, format string, v ...interface{})) {
	errorc = foo
}

func SetLoggerTraceIdKey(traceIdKey string) {
	loggerTraceIdKey = traceIdKey
}

var (
	consumerNotStartError = errors.New("rocket-mq consumer is not start")
	consumerStartedError  = errors.New("rocket-mq consumer is started, con not operate")
	producerNotStartError = errors.New("rocket-mq producer is not start, con not operate")
	producerStartedError  = errors.New("rocket-mq producer is started, con not operate")
)

const (
	configPrefix = "rocket_mq"
)

// 方便定制化配置，需要在启动前配置
var (
	producerGlobalConfig = make([]producer.Option, 0)
	consumerGlobalConfig = make([]consumer.Option, 0)
)

func SetProducerConfig(config ...producer.Option) {
	producerGlobalConfig = append(producerGlobalConfig, config...)
}

func SetConsumerConfig(config ...consumer.Option) {
	consumerGlobalConfig = append(consumerGlobalConfig, config...)
}

// 方便定制化使用
func GetRocketMQConfig(_type MQType, configFunc func(section, key string, defaultVal ...string) string) (*Config, error) {
	if configFunc == nil {
		return nil, errors.New("RocketMQ config con not be null")
	}
	config := func(key string, defaultValue ...string) string {
		return configFunc(configPrefix, key, defaultValue...)
	}
	// checked
	if config("host") == "" {
		return nil, errors.New(configPrefix + ".host can not be null")
	}
	if _type == ConsumerMQ {
		// checked
		if config("consumer.group_name") == "" {
			return nil, errors.New(configPrefix + ".consumer.group_name can not be null")
		}
	}
	if _type == ProducerMQ {
		// checked
		if config("producer.group_name") == "" {
			return nil, errors.New(configPrefix + ".producer.group_name can not be null")
		}
	}
	result := Config{
		MQType:            _type,
		LogLevel:          config("log.level", "info"),
		LogFileName:       config("log.filename"),
		Host:              util.SplitIgnoreSpace(config("host"), ","),
		ConsumerGroupName: config("consumer.group_name"),
		ProducerGroupName: config("producer.group_name"),
		TraceEnable:       util.String2Bool(config("trace.enable", "true")),
		SkyWalkingEnable:  util.String2Bool(config("skywalking.enable", "true")),
	}
	result.credentials = primitive.Credentials{
		AccessKey:     config("access_key"),
		SecretKey:     config("secret_key"),
		SecurityToken: config("security_token"),
	}
	result.traceConfig = primitive.TraceConfig{
		Credentials:  result.credentials,
		Access:       primitive.Local,
		NamesrvAddrs: result.Host,
	}
	return &result, nil
}

type MQType uint8

const (
	ConsumerMQ MQType = iota + 1
	ProducerMQ
)

type Config struct {
	MQType MQType

	LogLevel    string // 日志级别，debug|warn|error|info(default: info)
	LogFileName string // 日志位置，切割1day&最长保留时间30day

	Host []string // name-server地址

	ConsumerGroupName string // group-name
	ProducerGroupName string // group-name

	credentials primitive.Credentials // 密码/token相关

	SkyWalkingEnable bool // 是否开启skywalking-trace

	// 示例：https://tyut.oss-accelerate.aliyuncs.com/image/2021/3-11/7d3f0f33097743bd884e1c031cdafc76.png
	// 需要服务端开启trace-enable
	TraceEnable bool                  // 是否开启trace，默认是使用rocket-mq的trace的
	traceConfig primitive.TraceConfig // trace的配置
}

func (c Config) ToConsumerConfig() []consumer.Option {
	defaultOp := append([]consumer.Option{
		consumer.WithGroupName(c.ConsumerGroupName),
		consumer.WithNameServer(c.Host),
		consumer.WithCredentials(c.credentials),
	}, consumerGlobalConfig...)
	if c.TraceEnable {
		defaultOp = append(defaultOp, consumer.WithTrace(&c.traceConfig))
	}
	if c.SkyWalkingEnable {
		defaultOp = append(defaultOp, consumer.WithInterceptor(getSkyWalkingConsumerTraceInterceptor()))
	}
	return defaultOp
}

func (c Config) ToProducerConfig() []producer.Option {
	defaultOp := append([]producer.Option{
		producer.WithGroupName(c.ProducerGroupName),
		producer.WithNameServer(c.Host),
		producer.WithCredentials(c.credentials),
	}, producerGlobalConfig...)
	if c.TraceEnable {
		defaultOp = append(defaultOp, producer.WithTrace(&c.traceConfig))
	}
	if c.SkyWalkingEnable {
		defaultOp = append(defaultOp, producer.WithInterceptor(getSkyWalkingProducerTraceInterceptor()))
	}
	return defaultOp
}