package persistence_test

import (
	"context"
	"fmt"
	"time"

	"github.com/go-logr/logr"

	"go.yandata.net/iod/iod/go-trustlog/api/adapter"
	"go.yandata.net/iod/iod/go-trustlog/api/logger"
	"go.yandata.net/iod/iod/go-trustlog/api/model"
	"go.yandata.net/iod/iod/go-trustlog/api/persistence"
)

// Example_dbOnly 演示仅落库策略
func Example_dbOnly() {
	ctx := context.Background()

	// 1. 创建 Logger
	myLogger := logger.NewLogger(logr.Discard())

	// 2. 创建 Pulsar Publisher
	pub, err := adapter.NewPublisher(
		adapter.PublisherConfig{
			URL: "pulsar://localhost:6650",
		},
		myLogger,
	)
	if err != nil {
		panic(err)
	}
	defer pub.Close()

	// 3. 准备 SM2 密钥配置
	privateKeyHex := []byte("私钥D的十六进制字符串")
	publicKeyHex := []byte("04 + x坐标 + y坐标的十六进制字符串")
	envelopeConfig := model.NewSM2EnvelopeConfig(privateKeyHex, publicKeyHex)

	// 4. 创建支持数据库持久化的客户端（仅落库策略）
	client, err := persistence.NewPersistenceClient(ctx, persistence.PersistenceClientConfig{
		Publisher:      pub,
		Logger:         myLogger,
		EnvelopeConfig: envelopeConfig,
		DBConfig: persistence.DefaultDBConfig(
			"postgres",
			"postgres://user:pass@localhost:5432/trustlog?sslmode=disable",
		),
		PersistenceConfig: persistence.DefaultPersistenceConfig(persistence.StrategyDBOnly),
		EnableRetryWorker: false, // 仅落库不需要重试
	})
	if err != nil {
		panic(err)
	}
	defer client.Close()

	// 5. 构造 Operation（包含 IP 信息）
	op, err := model.NewFullOperation(
		model.OpSourceDOIP,
		model.OpTypeCreate,
		"10.1000",
		"my-repo",
		"10.1000/my-repo/doc001",
		"producer-001",
		"admin",
		[]byte(`{"action":"create"}`),
		[]byte(`{"status":"success"}`),
		time.Now(),
	)
	if err != nil {
		panic(err)
	}

	// 设置 IP 信息（仅落库字段，可空）
	clientIP := "192.168.1.100"
	serverIP := "10.0.0.50"
	op.ClientIP = &clientIP
	op.ServerIP = &serverIP

	// 6. 发布操作（仅落库，不存证）
	if err := client.OperationPublish(ctx, op); err != nil {
		panic(err)
	}

	fmt.Printf("Operation saved to database only: %s\n", op.OpID)
}

// Example_dbAndTrustlog 演示既落库又存证策略
func Example_dbAndTrustlog() {
	ctx := context.Background()

	// 1. 创建 Logger
	myLogger := logger.NewLogger(logr.Discard())

	// 2. 创建 Pulsar Publisher
	pub, err := adapter.NewPublisher(
		adapter.PublisherConfig{
			URL: "pulsar://localhost:6650",
		},
		myLogger,
	)
	if err != nil {
		panic(err)
	}
	defer pub.Close()

	// 3. 准备 SM2 密钥配置
	privateKeyHex := []byte("私钥D的十六进制字符串")
	publicKeyHex := []byte("04 + x坐标 + y坐标的十六进制字符串")
	envelopeConfig := model.NewSM2EnvelopeConfig(privateKeyHex, publicKeyHex)

	// 4. 创建支持数据库持久化的客户端（既落库又存证策略）
	retryConfig := persistence.DefaultRetryWorkerConfig()
	retryConfig.MaxRetryCount = 5
	retryConfig.RetryInterval = 30 * time.Second

	client, err := persistence.NewPersistenceClient(ctx, persistence.PersistenceClientConfig{
		Publisher:      pub,
		Logger:         myLogger,
		EnvelopeConfig: envelopeConfig,
		DBConfig: persistence.DefaultDBConfig(
			"postgres",
			"postgres://user:pass@localhost:5432/trustlog?sslmode=disable",
		),
		PersistenceConfig: persistence.PersistenceConfig{
			Strategy:       persistence.StrategyDBAndTrustlog,
			EnableRetry:    true,
			MaxRetryCount:  5,
			RetryBatchSize: 100,
		},
		RetryWorkerConfig: &retryConfig,
		EnableRetryWorker: true, // 启用重试工作器保证最终一致性
	})
	if err != nil {
		panic(err)
	}
	defer client.Close()

	// 5. 构造 Operation
	op, err := model.NewFullOperation(
		model.OpSourceDOIP,
		model.OpTypeCreate,
		"10.1000",
		"my-repo",
		"10.1000/my-repo/doc002",
		"producer-001",
		"admin",
		[]byte(`{"action":"create"}`),
		[]byte(`{"status":"success"}`),
		time.Now(),
	)
	if err != nil {
		panic(err)
	}

	// 设置 IP 信息（可空）
	clientIP := "192.168.1.100"
	serverIP := "10.0.0.50"
	op.ClientIP = &clientIP
	op.ServerIP = &serverIP

	// 6. 发布操作（既落库又存证，保证最终一致性）
	if err := client.OperationPublish(ctx, op); err != nil {
		panic(err)
	}

	fmt.Printf("Operation saved to database and published to trustlog: %s\n", op.OpID)
	fmt.Println("If publish fails, retry worker will handle it automatically")
}

// Example_trustlogOnly 演示仅存证策略
func Example_trustlogOnly() {
	ctx := context.Background()

	// 1. 创建 Logger
	myLogger := logger.NewLogger(logr.Discard())

	// 2. 创建 Pulsar Publisher
	pub, err := adapter.NewPublisher(
		adapter.PublisherConfig{
			URL: "pulsar://localhost:6650",
		},
		myLogger,
	)
	if err != nil {
		panic(err)
	}
	defer pub.Close()

	// 3. 准备 SM2 密钥配置
	privateKeyHex := []byte("私钥D的十六进制字符串")
	publicKeyHex := []byte("04 + x坐标 + y坐标的十六进制字符串")
	envelopeConfig := model.NewSM2EnvelopeConfig(privateKeyHex, publicKeyHex)

	// 4. 创建支持数据库持久化的客户端（仅存证策略）
	client, err := persistence.NewPersistenceClient(ctx, persistence.PersistenceClientConfig{
		Publisher:      pub,
		Logger:         myLogger,
		EnvelopeConfig: envelopeConfig,
		DBConfig: persistence.DefaultDBConfig(
			"postgres",
			"postgres://user:pass@localhost:5432/trustlog?sslmode=disable",
		),
		PersistenceConfig: persistence.DefaultPersistenceConfig(persistence.StrategyTrustlogOnly),
		EnableRetryWorker: false, // 仅存证不需要重试工作器
	})
	if err != nil {
		panic(err)
	}
	defer client.Close()

	// 5. 构造 Operation
	op, err := model.NewFullOperation(
		model.OpSourceDOIP,
		model.OpTypeCreate,
		"10.1000",
		"my-repo",
		"10.1000/my-repo/doc003",
		"producer-001",
		"admin",
		[]byte(`{"action":"create"}`),
		[]byte(`{"status":"success"}`),
		time.Now(),
	)
	if err != nil {
		panic(err)
	}

	// 6. 发布操作（仅存证，不落库）
	if err := client.OperationPublish(ctx, op); err != nil {
		panic(err)
	}

	fmt.Printf("Operation published to trustlog only: %s\n", op.OpID)
}

// Example_mysqlDatabase 演示使用 MySQL 数据库
func Example_mysqlDatabase() {
	ctx := context.Background()

	// 1. 创建 Logger
	myLogger := logger.NewLogger(logr.Discard())

	// 2. 创建 Pulsar Publisher
	pub, err := adapter.NewPublisher(
		adapter.PublisherConfig{
			URL: "pulsar://localhost:6650",
		},
		myLogger,
	)
	if err != nil {
		panic(err)
	}
	defer pub.Close()

	// 3. 准备 SM2 密钥配置
	privateKeyHex := []byte("私钥D的十六进制字符串")
	publicKeyHex := []byte("04 + x坐标 + y坐标的十六进制字符串")
	envelopeConfig := model.NewSM2EnvelopeConfig(privateKeyHex, publicKeyHex)

	// 4. 创建支持 MySQL 数据库的客户端
	client, err := persistence.NewPersistenceClient(ctx, persistence.PersistenceClientConfig{
		Publisher:      pub,
		Logger:         myLogger,
		EnvelopeConfig: envelopeConfig,
		DBConfig: persistence.DefaultDBConfig(
			"mysql",
			"user:pass@tcp(localhost:3306)/trustlog?parseTime=true",
		),
		PersistenceConfig: persistence.DefaultPersistenceConfig(persistence.StrategyDBAndTrustlog),
		EnableRetryWorker: true,
	})
	if err != nil {
		panic(err)
	}
	defer client.Close()

	// 5. 构造并发布 Operation
	op, err := model.NewFullOperation(
		model.OpSourceDOIP,
		model.OpTypeCreate,
		"10.1000",
		"my-repo",
		"10.1000/my-repo/doc004",
		"producer-001",
		"admin",
		[]byte(`{"action":"create"}`),
		[]byte(`{"status":"success"}`),
		time.Now(),
	)
	if err != nil {
		panic(err)
	}

	// 设置 IP 信息（可空）
	clientIP := "192.168.1.100"
	serverIP := "10.0.0.50"
	op.ClientIP = &clientIP
	op.ServerIP = &serverIP

	if err := client.OperationPublish(ctx, op); err != nil {
		panic(err)
	}

	fmt.Printf("Operation saved to MySQL and published: %s\n", op.OpID)
}

// Example_sqliteDatabase 演示使用 SQLite 数据库
func Example_sqliteDatabase() {
	ctx := context.Background()

	// 1. 创建 Logger
	myLogger := logger.NewLogger(logr.Discard())

	// 2. 创建 Pulsar Publisher
	pub, err := adapter.NewPublisher(
		adapter.PublisherConfig{
			URL: "pulsar://localhost:6650",
		},
		myLogger,
	)
	if err != nil {
		panic(err)
	}
	defer pub.Close()

	// 3. 准备 SM2 密钥配置
	privateKeyHex := []byte("私钥D的十六进制字符串")
	publicKeyHex := []byte("04 + x坐标 + y坐标的十六进制字符串")
	envelopeConfig := model.NewSM2EnvelopeConfig(privateKeyHex, publicKeyHex)

	// 4. 创建支持 SQLite 数据库的客户端
	client, err := persistence.NewPersistenceClient(ctx, persistence.PersistenceClientConfig{
		Publisher:      pub,
		Logger:         myLogger,
		EnvelopeConfig: envelopeConfig,
		DBConfig: persistence.DefaultDBConfig(
			"sqlite3",
			"./trustlog.db",
		),
		PersistenceConfig: persistence.DefaultPersistenceConfig(persistence.StrategyDBOnly),
		EnableRetryWorker: false,
	})
	if err != nil {
		panic(err)
	}
	defer client.Close()

	// 5. 构造并发布 Operation
	op, err := model.NewFullOperation(
		model.OpSourceDOIP,
		model.OpTypeCreate,
		"10.1000",
		"my-repo",
		"10.1000/my-repo/doc005",
		"producer-001",
		"admin",
		[]byte(`{"action":"create"}`),
		[]byte(`{"status":"success"}`),
		time.Now(),
	)
	if err != nil {
		panic(err)
	}

	// 设置 IP 信息（可空）
	clientIP := "192.168.1.100"
	serverIP := "10.0.0.50"
	op.ClientIP = &clientIP
	op.ServerIP = &serverIP

	if err := client.OperationPublish(ctx, op); err != nil {
		panic(err)
	}

	fmt.Printf("Operation saved to SQLite: %s\n", op.OpID)
}