mlogclub
467 lines
15 KiB
Go
467 lines
15 KiB
Go
package services
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import (
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"crypto/sha256"
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"encoding/hex"
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"encoding/json"
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"strings"
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"time"
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"agent-desk/internal/ai/workflow/dsl"
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workflowregistry "agent-desk/internal/ai/workflow/registry"
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workflowvalidator "agent-desk/internal/ai/workflow/validator"
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"agent-desk/internal/models"
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"agent-desk/internal/pkg/dto"
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"agent-desk/internal/pkg/dto/request"
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"agent-desk/internal/pkg/enums"
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"agent-desk/internal/pkg/errorsx"
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"agent-desk/internal/pkg/httpx/params"
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"agent-desk/internal/pkg/utils"
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"agent-desk/internal/repositories"
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"github.com/mlogclub/simple/sqls"
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"gorm.io/gorm"
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)
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var AIWorkflowService = newAIWorkflowService()
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func newAIWorkflowService() *aiWorkflowService {
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return &aiWorkflowService{
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registry: workflowregistry.DefaultRegistry(),
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}
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}
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type aiWorkflowService struct {
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registry *workflowregistry.Registry
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}
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type AIWorkflowRunAuditItem struct {
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Run models.AIWorkflowRun
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Workflow *models.AIWorkflow
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Version *models.AIWorkflowVersion
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Agent *models.AIAgent
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}
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func (s *aiWorkflowService) Get(id int64) *models.AIWorkflow {
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if id <= 0 {
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return nil
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}
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return repositories.AIWorkflowRepository.Get(sqls.DB(), id)
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}
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func (s *aiWorkflowService) GetVersion(id int64) *models.AIWorkflowVersion {
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if id <= 0 {
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return nil
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}
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return repositories.AIWorkflowVersionRepository.Get(sqls.DB(), id)
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}
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func (s *aiWorkflowService) FindPageByCnd(cnd *sqls.Cnd) (list []models.AIWorkflow, paging *sqls.Paging) {
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return repositories.AIWorkflowRepository.FindPageByCnd(sqls.DB(), cnd)
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}
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func (s *aiWorkflowService) FindVersionPageByParams(params *params.QueryParams) (list []models.AIWorkflowVersion, paging *sqls.Paging) {
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return repositories.AIWorkflowVersionRepository.FindPageByParams(sqls.DB(), params)
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}
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func (s *aiWorkflowService) FindRunPageByCnd(cnd *sqls.Cnd) (list []models.AIWorkflowRun, paging *sqls.Paging) {
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return repositories.AIWorkflowRunRepository.FindPageByCnd(sqls.DB(), cnd)
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}
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func (s *aiWorkflowService) BuildRunAuditItems(list []models.AIWorkflowRun) []AIWorkflowRunAuditItem {
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ret := make([]AIWorkflowRunAuditItem, 0, len(list))
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if len(list) == 0 {
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return ret
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}
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workflowIDs := make([]int64, 0, len(list))
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versionIDs := make([]int64, 0, len(list))
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agentIDs := make([]int64, 0, len(list))
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for _, item := range list {
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workflowIDs = appendNonZeroInt64(workflowIDs, item.WorkflowID)
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versionIDs = appendNonZeroInt64(versionIDs, item.WorkflowVersionID)
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agentIDs = appendNonZeroInt64(agentIDs, item.AIAgentID)
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}
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var workflows []models.AIWorkflow
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if len(workflowIDs) > 0 {
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workflows = repositories.AIWorkflowRepository.Find(sqls.DB(), sqls.NewCnd().In("id", workflowIDs))
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}
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var versions []models.AIWorkflowVersion
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if len(versionIDs) > 0 {
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versions = repositories.AIWorkflowVersionRepository.Find(sqls.DB(), sqls.NewCnd().In("id", versionIDs))
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}
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var agents []models.AIAgent
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if len(agentIDs) > 0 {
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agents = repositories.AIAgentRepository.Find(sqls.DB(), sqls.NewCnd().In("id", agentIDs))
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}
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workflowByID := make(map[int64]*models.AIWorkflow, len(workflows))
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for i := range workflows {
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item := workflows[i]
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workflowByID[item.ID] = &item
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}
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versionByID := make(map[int64]*models.AIWorkflowVersion, len(versions))
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for i := range versions {
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item := versions[i]
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versionByID[item.ID] = &item
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}
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agentByID := make(map[int64]*models.AIAgent, len(agents))
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for i := range agents {
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item := agents[i]
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agentByID[item.ID] = &item
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}
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for _, run := range list {
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ret = append(ret, AIWorkflowRunAuditItem{
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Run: run,
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Workflow: workflowByID[run.WorkflowID],
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Version: versionByID[run.WorkflowVersionID],
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Agent: agentByID[run.AIAgentID],
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})
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}
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return ret
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}
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func (s *aiWorkflowService) GetRunDetail(id int64) (*models.AIWorkflowRun, []models.AIWorkflowNodeRun) {
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if id <= 0 {
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return nil, nil
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}
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run := repositories.AIWorkflowRunRepository.Get(sqls.DB(), id)
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if run == nil {
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return nil, nil
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}
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nodes := repositories.AIWorkflowNodeRunRepository.Find(sqls.DB(), sqls.NewCnd().Eq("workflow_run_id", id).Asc("id"))
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return run, nodes
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}
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func appendNonZeroInt64(list []int64, value int64) []int64 {
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if value <= 0 {
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return list
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}
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for _, item := range list {
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if item == value {
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return list
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}
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}
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return append(list, value)
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}
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func (s *aiWorkflowService) GetByAgentID(agentID int64) *models.AIWorkflow {
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if agentID <= 0 {
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return nil
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}
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return repositories.AIWorkflowRepository.Take(sqls.DB(), "agent_id = ? AND status <> ?", agentID, enums.StatusDeleted)
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}
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func (s *aiWorkflowService) GetOrCreateAgentWorkflow(agentID int64, operator *dto.AuthPrincipal) (*models.AIWorkflow, error) {
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if operator == nil {
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return nil, errorsx.UnauthorizedI18n("error.auth.expired")
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}
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if agentID <= 0 {
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return nil, errorsx.InvalidParam("agent id is required")
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}
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if agent := AIAgentService.Get(agentID); agent == nil || agent.Status == enums.StatusDeleted {
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return nil, errorsx.InvalidParamI18n("error.e0002")
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}
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if item := s.GetByAgentID(agentID); item != nil {
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return item, nil
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}
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var item *models.AIWorkflow
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err := sqls.WithTransaction(func(ctx *sqls.TxContext) error {
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if current := repositories.AIWorkflowRepository.Take(ctx.Tx, "agent_id = ? AND status <> ?", agentID, enums.StatusDeleted); current != nil {
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item = current
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return nil
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}
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agent := repositories.AIAgentRepository.Get(ctx.Tx, agentID)
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if agent == nil || agent.Status == enums.StatusDeleted {
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return errorsx.InvalidParamI18n("error.e0002")
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}
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created, err := s.createDefaultAgentWorkflow(ctx.Tx, agent, operator)
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if err != nil {
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return err
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}
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item = created
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return nil
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})
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if err != nil {
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return nil, err
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}
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return item, nil
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}
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func (s *aiWorkflowService) ListNodeSpecs() []workflowregistry.NodeSpec {
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return s.registry.List()
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}
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func (s *aiWorkflowService) ValidateDefinition(def dsl.Definition) workflowvalidator.Result {
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return workflowvalidator.ValidateDefinition(def, s.registry)
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}
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func (s *aiWorkflowService) CreateWorkflow(req request.CreateAIWorkflowRequest, operator *dto.AuthPrincipal) (*models.AIWorkflow, error) {
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return s.SaveAgentWorkflow(req, operator)
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}
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func (s *aiWorkflowService) SaveAgentWorkflow(req request.SaveAIWorkflowRequest, operator *dto.AuthPrincipal) (*models.AIWorkflow, error) {
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if operator == nil {
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return nil, errorsx.UnauthorizedI18n("error.auth.expired")
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}
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agent := AIAgentService.Get(req.AgentID)
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if agent == nil || agent.Status == enums.StatusDeleted {
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return nil, errorsx.InvalidParamI18n("error.e0002")
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}
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name := strings.TrimSpace(req.Name)
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if name == "" {
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name = defaultAgentWorkflowName(agent.Name)
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}
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definition, err := marshalDefinition(req.Definition)
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if err != nil {
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return nil, err
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}
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current := s.GetByAgentID(req.AgentID)
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if current == nil {
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item := &models.AIWorkflow{
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Name: name,
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Description: strings.TrimSpace(req.Description),
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AgentID: req.AgentID,
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Status: enums.StatusOk,
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DraftDefinition: definition,
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AuditFields: utils.BuildAuditFields(operator),
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}
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if err := repositories.AIWorkflowRepository.Create(sqls.DB(), item); err != nil {
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return nil, err
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}
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return item, nil
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}
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if err := repositories.AIWorkflowRepository.Updates(sqls.DB(), current.ID, map[string]interface{}{
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"name": name,
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"description": strings.TrimSpace(req.Description),
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"agent_id": req.AgentID,
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"draft_definition": definition,
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"update_user_id": operator.UserID,
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"update_user_name": operator.Username,
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"updated_at": time.Now(),
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}); err != nil {
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return nil, err
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}
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return s.Get(current.ID), nil
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}
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func (s *aiWorkflowService) UpdateWorkflow(req request.UpdateAIWorkflowRequest, operator *dto.AuthPrincipal) error {
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if operator == nil {
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return errorsx.UnauthorizedI18n("error.auth.expired")
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}
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if s.Get(req.ID) == nil {
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return errorsx.InvalidParamI18n("error.e0002")
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}
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name := strings.TrimSpace(req.Name)
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if name == "" {
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return errorsx.InvalidParam("workflow name is required")
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}
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if req.AgentID <= 0 {
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return errorsx.InvalidParam("agent id is required")
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}
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definition, err := marshalDefinition(req.Definition)
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if err != nil {
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return err
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}
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return repositories.AIWorkflowRepository.Updates(sqls.DB(), req.ID, map[string]interface{}{
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"name": name,
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"description": strings.TrimSpace(req.Description),
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"agent_id": req.AgentID,
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"draft_definition": definition,
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"update_user_id": operator.UserID,
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"update_user_name": operator.Username,
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"updated_at": time.Now(),
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})
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}
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func (s *aiWorkflowService) DeleteWorkflow(id int64, operator *dto.AuthPrincipal) error {
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if operator == nil {
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return errorsx.UnauthorizedI18n("error.auth.expired")
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}
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if s.Get(id) == nil {
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return errorsx.InvalidParamI18n("error.e0002")
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}
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return repositories.AIWorkflowRepository.Updates(sqls.DB(), id, map[string]interface{}{
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"status": enums.StatusDeleted,
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"update_user_id": operator.UserID,
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"update_user_name": operator.Username,
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"updated_at": time.Now(),
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})
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}
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func (s *aiWorkflowService) PublishWorkflow(req request.PublishAIWorkflowRequest, operator *dto.AuthPrincipal) (*models.AIWorkflowVersion, error) {
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if req.AgentID > 0 {
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return s.PublishAgentWorkflow(req, operator)
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}
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if operator == nil {
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return nil, errorsx.UnauthorizedI18n("error.auth.expired")
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}
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workflow := s.Get(req.WorkflowID)
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if workflow == nil || workflow.Status == enums.StatusDeleted {
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return nil, errorsx.InvalidParamI18n("error.e0002")
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}
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result := s.ValidateDefinition(req.Definition)
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if !result.Valid {
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return nil, errorsx.InvalidParam("workflow definition is invalid")
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}
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definition, err := marshalDefinition(req.Definition)
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if err != nil {
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return nil, err
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}
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now := time.Now()
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var version *models.AIWorkflowVersion
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err = sqls.WithTransaction(func(ctx *sqls.TxContext) error {
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nextVersion := repositories.AIWorkflowVersionRepository.MaxVersionByWorkflowID(ctx.Tx, req.WorkflowID) + 1
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version = &models.AIWorkflowVersion{
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WorkflowID: req.WorkflowID,
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Version: nextVersion,
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Status: enums.StatusOk,
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Definition: definition,
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DefinitionHash: hashDefinition(definition),
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PublishedAt: &now,
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PublishedByID: operator.UserID,
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PublishedByName: operator.Username,
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AuditFields: utils.BuildAuditFields(operator),
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}
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if err := repositories.AIWorkflowVersionRepository.Create(ctx.Tx, version); err != nil {
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return err
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}
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return repositories.AIWorkflowRepository.Updates(ctx.Tx, req.WorkflowID, map[string]interface{}{
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"draft_definition": definition,
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"published_version_id": version.ID,
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"update_user_id": operator.UserID,
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"update_user_name": operator.Username,
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"updated_at": now,
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})
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})
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if err != nil {
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return nil, err
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}
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return version, nil
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}
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func (s *aiWorkflowService) PublishAgentWorkflow(req request.PublishAIWorkflowRequest, operator *dto.AuthPrincipal) (*models.AIWorkflowVersion, error) {
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if operator == nil {
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return nil, errorsx.UnauthorizedI18n("error.auth.expired")
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}
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workflow, err := s.GetOrCreateAgentWorkflow(req.AgentID, operator)
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if err != nil {
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return nil, err
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}
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req.WorkflowID = workflow.ID
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result := s.ValidateDefinition(req.Definition)
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if !result.Valid {
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return nil, errorsx.InvalidParam("workflow definition is invalid")
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}
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definition, err := marshalDefinition(req.Definition)
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if err != nil {
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return nil, err
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}
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now := time.Now()
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var version *models.AIWorkflowVersion
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err = sqls.WithTransaction(func(ctx *sqls.TxContext) error {
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current := repositories.AIWorkflowRepository.Get(ctx.Tx, workflow.ID)
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if current == nil || current.AgentID != req.AgentID || current.Status == enums.StatusDeleted {
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return errorsx.InvalidParamI18n("error.e0002")
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}
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nextVersion := repositories.AIWorkflowVersionRepository.MaxVersionByWorkflowID(ctx.Tx, current.ID) + 1
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version = &models.AIWorkflowVersion{
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WorkflowID: current.ID,
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Version: nextVersion,
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Status: enums.StatusOk,
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Definition: definition,
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DefinitionHash: hashDefinition(definition),
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PublishedAt: &now,
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PublishedByID: operator.UserID,
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PublishedByName: operator.Username,
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AuditFields: utils.BuildAuditFields(operator),
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}
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if err := repositories.AIWorkflowVersionRepository.Create(ctx.Tx, version); err != nil {
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return err
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}
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if err := repositories.AIWorkflowRepository.Updates(ctx.Tx, current.ID, map[string]interface{}{
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"draft_definition": definition,
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"published_version_id": version.ID,
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"update_user_id": operator.UserID,
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"update_user_name": operator.Username,
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"updated_at": now,
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}); err != nil {
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return err
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}
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return repositories.AIAgentRepository.Updates(ctx.Tx, req.AgentID, map[string]any{
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"workflow_version_id": version.ID,
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"update_user_id": operator.UserID,
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"update_user_name": operator.Username,
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"updated_at": now,
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})
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})
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if err != nil {
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return nil, err
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}
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return version, nil
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}
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func (s *aiWorkflowService) createDefaultAgentWorkflow(db *gorm.DB, agent *models.AIAgent, operator *dto.AuthPrincipal) (*models.AIWorkflow, error) {
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definition, err := marshalDefinition(defaultAgentWorkflowDefinition())
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if err != nil {
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return nil, err
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}
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item := &models.AIWorkflow{
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Name: defaultAgentWorkflowName(agent.Name),
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AgentID: agent.ID,
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Status: enums.StatusOk,
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DraftDefinition: definition,
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AuditFields: utils.BuildAuditFields(operator),
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}
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if err := repositories.AIWorkflowRepository.Create(db, item); err != nil {
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return nil, err
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}
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return item, nil
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}
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func defaultAgentWorkflowDefinition() dsl.Definition {
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return dsl.Definition{
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SchemaVersion: 1,
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EntryNodeID: "start_1",
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Nodes: []dsl.Node{
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{ID: "start_1", Type: workflowregistry.NodeTypeStart, Name: "开始", Position: dsl.Position{X: 0, Y: 120}},
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{ID: "retrieve_1", Type: workflowregistry.NodeTypeKnowledgeRetrieve, Name: "知识检索", Position: dsl.Position{X: 260, Y: 120}, Inputs: map[string]dsl.VariableSelector{
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"query": {NodeID: "start_1", Field: "userMessage"},
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}},
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{ID: "reply_1", Type: workflowregistry.NodeTypeLLMReply, Name: "AI 回复", Position: dsl.Position{X: 520, Y: 120}, Inputs: map[string]dsl.VariableSelector{
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"userMessage": {NodeID: "start_1", Field: "userMessage"},
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"knowledgeItems": {NodeID: "retrieve_1", Field: "items"},
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}},
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{ID: "send_1", Type: workflowregistry.NodeTypeSendReply, Name: "发送回复", Position: dsl.Position{X: 780, Y: 120}, Inputs: map[string]dsl.VariableSelector{
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"replyText": {NodeID: "reply_1", Field: "replyText"},
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}},
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{ID: "end_1", Type: workflowregistry.NodeTypeEnd, Name: "结束", Position: dsl.Position{X: 1040, Y: 120}},
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},
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Edges: []dsl.Edge{
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{ID: "edge_start_retrieve", Source: "start_1", Target: "retrieve_1"},
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{ID: "edge_retrieve_reply", Source: "retrieve_1", Target: "reply_1"},
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{ID: "edge_reply_send", Source: "reply_1", Target: "send_1"},
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{ID: "edge_send_end", Source: "send_1", Target: "end_1"},
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},
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}
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}
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func defaultAgentWorkflowName(agentName string) string {
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agentName = strings.TrimSpace(agentName)
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if agentName == "" {
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return "会话流程"
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}
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return agentName + " 会话流程"
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}
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func marshalDefinition(def dsl.Definition) (string, error) {
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buf, err := json.Marshal(def)
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if err != nil {
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return "", errorsx.InvalidParam("invalid workflow definition")
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}
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return string(buf), nil
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}
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func hashDefinition(definition string) string {
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sum := sha256.Sum256([]byte(definition))
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return hex.EncodeToString(sum[:])
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}
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