package control

import (
	"context"
	"sync/atomic"

	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/audit"
	ctl "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control"
	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
)

var _ ctl.ControlServiceServer = (*auditService)(nil)

type auditService struct {
	next    ctl.ControlServiceServer
	log     *logger.Logger
	enabled *atomic.Bool
}

func NewAuditService(next ctl.ControlServiceServer, log *logger.Logger, enabled *atomic.Bool) ctl.ControlServiceServer {
	return &auditService{
		next:    next,
		log:     log,
		enabled: enabled,
	}
}

// AddChainLocalOverride implements control.ControlServiceServer.
func (a *auditService) AddChainLocalOverride(ctx context.Context, req *ctl.AddChainLocalOverrideRequest) (*ctl.AddChainLocalOverrideResponse, error) {
	res, err := a.next.AddChainLocalOverride(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_AddChainLocalOverride_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromChainID(req.GetBody().GetTarget().GetType().String(),
			req.GetBody().GetTarget().GetName(),
			res.GetBody().GetChainId()),
		err == nil)
	return res, err
}

// DetachShards implements control.ControlServiceServer.
func (a *auditService) DetachShards(ctx context.Context, req *ctl.DetachShardsRequest) (*ctl.DetachShardsResponse, error) {
	res, err := a.next.DetachShards(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_DetachShards_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromShardIDs(req.GetBody().GetShard_ID()), err == nil)
	return res, err
}

// Doctor implements control.ControlServiceServer.
func (a *auditService) Doctor(ctx context.Context, req *ctl.DoctorRequest) (*ctl.DoctorResponse, error) {
	res, err := a.next.Doctor(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_Doctor_FullMethodName, req.GetSignature().GetKey(), nil, err == nil)
	return res, err
}

// DropObjects implements control.ControlServiceServer.
func (a *auditService) DropObjects(ctx context.Context, req *ctl.DropObjectsRequest) (*ctl.DropObjectsResponse, error) {
	res, err := a.next.DropObjects(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	var list []string
	for _, v := range req.GetBody().GetAddressList() {
		if len(v) == 0 {
			list = append(list, audit.Empty)
			continue
		}
		var a oid.Address
		if e := a.DecodeString(string(v)); e != nil {
			list = append(list, audit.InvalidValue)
		} else {
			list = append(list, a.EncodeToString())
		}
	}

	audit.LogRequestWithKey(a.log, ctl.ControlService_DropObjects_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromStringSlice(list), err == nil)
	return res, err
}

// EvacuateShard implements control.ControlServiceServer.
func (a *auditService) EvacuateShard(ctx context.Context, req *ctl.EvacuateShardRequest) (*ctl.EvacuateShardResponse, error) {
	res, err := a.next.EvacuateShard(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_EvacuateShard_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromShardIDs(req.GetBody().GetShard_ID()), err == nil)
	return res, err
}

// FlushCache implements control.ControlServiceServer.
func (a *auditService) FlushCache(ctx context.Context, req *ctl.FlushCacheRequest) (*ctl.FlushCacheResponse, error) {
	res, err := a.next.FlushCache(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_FlushCache_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromShardIDs(req.GetBody().GetShard_ID()), err == nil)
	return res, err
}

// GetChainLocalOverride implements control.ControlServiceServer.
func (a *auditService) GetChainLocalOverride(ctx context.Context, req *ctl.GetChainLocalOverrideRequest) (*ctl.GetChainLocalOverrideResponse, error) {
	res, err := a.next.GetChainLocalOverride(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_GetChainLocalOverride_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromChainID(
			req.GetBody().GetTarget().GetType().String(),
			req.GetBody().GetTarget().GetName(),
			req.GetBody().GetChainId()),
		err == nil)
	return res, err
}

// GetShardEvacuationStatus implements control.ControlServiceServer.
func (a *auditService) GetShardEvacuationStatus(ctx context.Context, req *ctl.GetShardEvacuationStatusRequest) (*ctl.GetShardEvacuationStatusResponse, error) {
	res, err := a.next.GetShardEvacuationStatus(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_GetShardEvacuationStatus_FullMethodName, req.GetSignature().GetKey(),
		nil, err == nil)
	return res, err
}

// HealthCheck implements control.ControlServiceServer.
func (a *auditService) HealthCheck(ctx context.Context, req *ctl.HealthCheckRequest) (*ctl.HealthCheckResponse, error) {
	res, err := a.next.HealthCheck(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_HealthCheck_FullMethodName, req.GetSignature().GetKey(),
		nil, err == nil)
	return res, err
}

// ListChainLocalOverrides implements control.ControlServiceServer.
func (a *auditService) ListChainLocalOverrides(ctx context.Context, req *ctl.ListChainLocalOverridesRequest) (*ctl.ListChainLocalOverridesResponse, error) {
	res, err := a.next.ListChainLocalOverrides(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_ListChainLocalOverrides_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromChainID(req.GetBody().GetTarget().GetType().String(),
			req.GetBody().GetTarget().GetName(),
			nil),
		err == nil)
	return res, err
}

// ListShards implements control.ControlServiceServer.
func (a *auditService) ListShards(ctx context.Context, req *ctl.ListShardsRequest) (*ctl.ListShardsResponse, error) {
	res, err := a.next.ListShards(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_ListShards_FullMethodName, req.GetSignature().GetKey(),
		nil, err == nil)
	return res, err
}

// ListTargetsLocalOverrides implements control.ControlServiceServer.
func (a *auditService) ListTargetsLocalOverrides(ctx context.Context, req *ctl.ListTargetsLocalOverridesRequest) (*ctl.ListTargetsLocalOverridesResponse, error) {
	res, err := a.next.ListTargetsLocalOverrides(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_ListTargetsLocalOverrides_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromString(req.GetBody().GetChainName()), err == nil)
	return res, err
}

// RemoveChainLocalOverride implements control.ControlServiceServer.
func (a *auditService) RemoveChainLocalOverride(ctx context.Context, req *ctl.RemoveChainLocalOverrideRequest) (*ctl.RemoveChainLocalOverrideResponse, error) {
	res, err := a.next.RemoveChainLocalOverride(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_RemoveChainLocalOverride_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromChainID(req.GetBody().GetTarget().GetType().String(),
			req.GetBody().GetTarget().GetName(),
			req.GetBody().GetChainId()),
		err == nil)
	return res, err
}

// RemoveChainLocalOverridesByTarget implements control.ControlServiceServer.
func (a *auditService) RemoveChainLocalOverridesByTarget(ctx context.Context, req *ctl.RemoveChainLocalOverridesByTargetRequest) (*ctl.RemoveChainLocalOverridesByTargetResponse, error) {
	res, err := a.next.RemoveChainLocalOverridesByTarget(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_RemoveChainLocalOverridesByTarget_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromChainID(req.GetBody().GetTarget().GetType().String(),
			req.GetBody().GetTarget().GetName(),
			nil),
		err == nil)
	return res, err
}

// ResetShardEvacuationStatus implements control.ControlServiceServer.
func (a *auditService) ResetShardEvacuationStatus(ctx context.Context, req *ctl.ResetShardEvacuationStatusRequest) (*ctl.ResetShardEvacuationStatusResponse, error) {
	res, err := a.next.ResetShardEvacuationStatus(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_ResetShardEvacuationStatus_FullMethodName, req.GetSignature().GetKey(),
		nil, err == nil)
	return res, err
}

// SealWriteCache implements control.ControlServiceServer.
func (a *auditService) SealWriteCache(ctx context.Context, req *ctl.SealWriteCacheRequest) (*ctl.SealWriteCacheResponse, error) {
	res, err := a.next.SealWriteCache(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_SealWriteCache_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromShardIDs(req.GetBody().GetShard_ID()), err == nil)
	return res, err
}

// SetNetmapStatus implements control.ControlServiceServer.
func (a *auditService) SetNetmapStatus(ctx context.Context, req *ctl.SetNetmapStatusRequest) (*ctl.SetNetmapStatusResponse, error) {
	res, err := a.next.SetNetmapStatus(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_SetNetmapStatus_FullMethodName, req.GetSignature().GetKey(),
		nil, err == nil)
	return res, err
}

// SetShardMode implements control.ControlServiceServer.
func (a *auditService) SetShardMode(ctx context.Context, req *ctl.SetShardModeRequest) (*ctl.SetShardModeResponse, error) {
	res, err := a.next.SetShardMode(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_SetShardMode_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromShardIDs(req.GetBody().GetShard_ID()), err == nil)
	return res, err
}

// StartShardEvacuation implements control.ControlServiceServer.
func (a *auditService) StartShardEvacuation(ctx context.Context, req *ctl.StartShardEvacuationRequest) (*ctl.StartShardEvacuationResponse, error) {
	res, err := a.next.StartShardEvacuation(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_StartShardEvacuation_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromShardIDs(req.GetBody().GetShard_ID()), err == nil)
	return res, err
}

// StopShardEvacuation implements control.ControlServiceServer.
func (a *auditService) StopShardEvacuation(ctx context.Context, req *ctl.StopShardEvacuationRequest) (*ctl.StopShardEvacuationResponse, error) {
	res, err := a.next.StopShardEvacuation(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_StopShardEvacuation_FullMethodName, req.GetSignature().GetKey(),
		nil, err == nil)
	return res, err
}

// SynchronizeTree implements control.ControlServiceServer.
func (a *auditService) SynchronizeTree(ctx context.Context, req *ctl.SynchronizeTreeRequest) (*ctl.SynchronizeTreeResponse, error) {
	res, err := a.next.SynchronizeTree(ctx, req)
	if !a.enabled.Load() {
		return res, err
	}
	audit.LogRequestWithKey(a.log, ctl.ControlService_SynchronizeTree_FullMethodName, req.GetSignature().GetKey(),
		audit.TargetFromTreeID(req.GetBody().GetContainerId(), req.GetBody().GetTreeId()), err == nil)
	return res, err
}