// Copyright 2023 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
//go:build plus

package nodes

import (
	"encoding/json"
	"fmt"
	"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
	"github.com/TeaOSLab/EdgeNode/internal/rpc"
)

// 脚本库变更
func (this *Node) execScriptsChangedTask() error {
	err := this.reloadCommonScripts()
	if err != nil {
		return fmt.Errorf("reload common scripts failed: %w", err)
	}
	return nil
}

// UAM策略变更
func (this *Node) execUAMPolicyChangedTask(rpcClient *rpc.RPCClient) error {
	remotelogs.Println("NODE", "updating uam policies ...")
	resp, err := rpcClient.NodeRPC.FindNodeUAMPolicies(rpcClient.Context(), &pb.FindNodeUAMPoliciesRequest{})
	if err != nil {
		return err
	}
	var uamPolicyMap = map[int64]*nodeconfigs.UAMPolicy{}
	for _, policy := range resp.UamPolicies {
		if len(policy.UamPolicyJSON) > 0 {
			var uamPolicy = &nodeconfigs.UAMPolicy{}
			err = json.Unmarshal(policy.UamPolicyJSON, uamPolicy)
			if err != nil {
				remotelogs.Error("NODE", "decode uam policy failed: "+err.Error())
				continue
			}
			err = uamPolicy.Init()
			if err != nil {
				remotelogs.Error("NODE", "initialize uam policy failed: "+err.Error())
				continue
			}
			uamPolicyMap[policy.NodeClusterId] = uamPolicy
		}
	}
	sharedNodeConfig.UpdateUAMPolicies(uamPolicyMap)
	return nil
}

// HTTP CC策略变更
func (this *Node) execHTTPCCPolicyChangedTask(rpcClient *rpc.RPCClient) error {
	remotelogs.Println("NODE", "updating http cc policies ...")
	resp, err := rpcClient.NodeRPC.FindNodeHTTPCCPolicies(rpcClient.Context(), &pb.FindNodeHTTPCCPoliciesRequest{})
	if err != nil {
		return err
	}
	var httpCCPolicyMap = map[int64]*nodeconfigs.HTTPCCPolicy{}
	for _, policy := range resp.HttpCCPolicies {
		if len(policy.HttpCCPolicyJSON) > 0 {
			var httpCCPolicy = nodeconfigs.NewHTTPCCPolicy()
			err = json.Unmarshal(policy.HttpCCPolicyJSON, httpCCPolicy)
			if err != nil {
				remotelogs.Error("NODE", "decode http cc policy failed: "+err.Error())
				continue
			}
			err = httpCCPolicy.Init()
			if err != nil {
				remotelogs.Error("NODE", "initialize http cc policy failed: "+err.Error())
				continue
			}
			httpCCPolicyMap[policy.NodeClusterId] = httpCCPolicy
		}
	}
	sharedNodeConfig.UpdateHTTPCCPolicies(httpCCPolicyMap)
	return nil
}

// HTTP3策略变更
func (this *Node) execHTTP3PolicyChangedTask(rpcClient *rpc.RPCClient) error {
	remotelogs.Println("NODE", "updating http3 policies ...")
	resp, err := rpcClient.NodeRPC.FindNodeHTTP3Policies(rpcClient.Context(), &pb.FindNodeHTTP3PoliciesRequest{})
	if err != nil {
		return err
	}
	var http3PolicyMap = map[int64]*nodeconfigs.HTTP3Policy{}
	for _, policy := range resp.Http3Policies {
		if len(policy.Http3PolicyJSON) > 0 {
			var http3Policy = nodeconfigs.NewHTTP3Policy()
			err = json.Unmarshal(policy.Http3PolicyJSON, http3Policy)
			if err != nil {
				remotelogs.Error("NODE", "decode http3 policy failed: "+err.Error())
				continue
			}
			err = http3Policy.Init()
			if err != nil {
				remotelogs.Error("NODE", "initialize http3 policy failed: "+err.Error())
				continue
			}
			http3PolicyMap[policy.NodeClusterId] = http3Policy
		}
	}

	sharedNodeConfig.UpdateHTTP3Policies(http3PolicyMap)

	// 加入端口到防火墙
	sharedListenerManager.reloadFirewalld()

	go func() {
		err = sharedHTTP3Manager.Update(http3PolicyMap)
		if err != nil {
			remotelogs.Error("HTTP3_MANAGER", "update policy map failed: "+err.Error())
		}
	}()

	return nil
}

// 自定义页面策略变更
func (this *Node) execHTTPPagesPolicyChangedTask(rpcClient *rpc.RPCClient) error {
	remotelogs.Println("NODE", "updating http pages policies ...")
	resp, err := rpcClient.NodeRPC.FindNodeHTTPPagesPolicies(rpcClient.Context(), &pb.FindNodeHTTPPagesPoliciesRequest{})
	if err != nil {
		return err
	}
	var httpPagesPolicyMap = map[int64]*nodeconfigs.HTTPPagesPolicy{}
	for _, policy := range resp.HttpPagesPolicies {
		if len(policy.HttpPagesPolicyJSON) > 0 {
			var httpPagesPolicy = nodeconfigs.NewHTTPPagesPolicy()
			err = json.Unmarshal(policy.HttpPagesPolicyJSON, httpPagesPolicy)
			if err != nil {
				remotelogs.Error("NODE", "decode http pages policy failed: "+err.Error())
				continue
			}
			err = httpPagesPolicy.Init()
			if err != nil {
				remotelogs.Error("NODE", "initialize http pages policy failed: "+err.Error())
				continue
			}
			httpPagesPolicyMap[policy.NodeClusterId] = httpPagesPolicy
		}
	}
	sharedNodeConfig.UpdateHTTPPagesPolicies(httpPagesPolicyMap)
	return nil
}

func (this *Node) execPlanChangedTask(rpcClient *rpc.RPCClient) error {
	remotelogs.Println("NODE", "updating plans ...")
	plansResp, err := rpcClient.PlanRPC.FindAllAvailableBasicPlans(rpcClient.Context(), &pb.FindAllAvailableBasicPlansRequest{})
	if err != nil {
		return err
	}
	var planMap = map[int64]*serverconfigs.PlanConfig{}
	for _, plan := range plansResp.Plans {
		// traffic limit
		var trafficLimit = &serverconfigs.TrafficLimitConfig{}
		if len(plan.TrafficLimitJSON) > 0 {
			err = json.Unmarshal(plan.TrafficLimitJSON, trafficLimit)
			if err != nil {
				return fmt.Errorf("decode traffic limit json failed: %w", err)
			}
		}

		// bandwidth limit
		var bandwidthLimitPerNode = &shared.BitSizeCapacity{}
		if len(plan.BandwidthLimitPerNodeJSON) > 0 {
			err = json.Unmarshal(plan.BandwidthLimitPerNodeJSON, bandwidthLimitPerNode)
			if err != nil {
				return fmt.Errorf("decode bandwidth limit per node json failed: %w", err)
			}
		}

		// max upload size
		var maxUploadSize = &shared.SizeCapacity{}
		if len(plan.MaxUploadSizeJSON) > 0 {
			err = json.Unmarshal(plan.MaxUploadSizeJSON, maxUploadSize)
			if err != nil {
				return fmt.Errorf("decode max upload size json failed: %w", err)
			}
		}

		planMap[plan.Id] = &serverconfigs.PlanConfig{
			Id:                    plan.Id,
			Name:                  plan.Name,
			TrafficLimit:          trafficLimit,
			BandwidthLimitPerNode: bandwidthLimitPerNode,
			MaxUploadSize:         maxUploadSize,
		}
	}

	sharedNodeConfig.UpdatePlans(planMap)
	sharedPlanBandwidthLimiter.UpdatePlans(planMap)

	return nil
}