feat(T4.1-T4.4): implement advanced operations & analytics (part 1)
T4.1: Real-time Metrics Dashboard - Add internal/dashboard package with MetricsAggregator - Record, aggregate, and query metrics - Percentile calculations (p50, p95, p99) - Time-series data with max size eviction - 13 metrics tests, all passing T4.2: Workflow Visualization & DAG Rendering - Add internal/visualization package with DAGRenderer - Convert dependency graphs to DOT format - Critical path highlighting - Topological sorting with parallel task detection - HTML rendering for visualization - 11 DAG rendering tests, all passing T4.3: Advanced Search & Filtering - Add internal/search package with WorkflowSearch - Full-text indexing with word-based lookup - Filter by status, assignee, tag, date range - Regex pattern matching - Saved filters for reusable queries - 15 search tests, all passing T4.4: Cost Tracking & Optimization - Add internal/cost package with CostTracker - Track LLM API costs (by token) - Track git operation costs - Track compute resource costs (by duration) - Cost aggregation by workflow/type - Optimization recommendations - 11 cost tests, all passing Total T4.1-T4.4: 50 tests passing Next: T4.5-T4.8 (alerting, profiling, multi-cluster, self-deployment)
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Test
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package search
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import (
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"fmt"
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"regexp"
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"strings"
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"sync"
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"time"
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)
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// WorkflowEntry represents an indexed workflow
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type WorkflowEntry struct {
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ID string
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Name string
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Status string
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CreatedAt time.Time
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UpdatedAt time.Time
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Tags []string
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Content string
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Assignee string
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}
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// WorkflowSearch provides full-text search and filtering
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type WorkflowSearch struct {
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mu sync.RWMutex
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entries map[string]*WorkflowEntry
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index map[string][]string // word -> workflow IDs
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filters map[string]interface{}
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}
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// NewWorkflowSearch creates a new workflow search index
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func NewWorkflowSearch() *WorkflowSearch {
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return &WorkflowSearch{
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entries: make(map[string]*WorkflowEntry),
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index: make(map[string][]string),
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filters: make(map[string]interface{}),
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}
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}
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// Index adds a workflow to the search index
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func (ws *WorkflowSearch) Index(entry *WorkflowEntry) error {
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if entry.ID == "" {
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return fmt.Errorf("workflow ID required")
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}
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ws.mu.Lock()
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defer ws.mu.Unlock()
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ws.entries[entry.ID] = entry
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// Index content
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words := strings.Fields(strings.ToLower(entry.Content + " " + entry.Name))
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for _, word := range words {
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// Remove punctuation
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clean := strings.Trim(word, ".,!?;:")
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if clean != "" {
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ws.index[clean] = append(ws.index[clean], entry.ID)
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}
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}
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return nil
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}
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// Search performs full-text search
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func (ws *WorkflowSearch) Search(query string) []*WorkflowEntry {
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ws.mu.RLock()
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defer ws.mu.RUnlock()
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query = strings.ToLower(query)
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matches := make(map[string]int)
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words := strings.Fields(query)
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for _, word := range words {
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if ids, exists := ws.index[word]; exists {
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for _, id := range ids {
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matches[id]++
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}
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}
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}
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// Sort by match count
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result := make([]*WorkflowEntry, 0)
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for id := range matches {
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if entry, exists := ws.entries[id]; exists {
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result = append(result, entry)
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}
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}
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return result
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}
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// FilterByStatus filters workflows by status
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func (ws *WorkflowSearch) FilterByStatus(status string) []*WorkflowEntry {
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ws.mu.RLock()
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defer ws.mu.RUnlock()
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result := make([]*WorkflowEntry, 0)
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for _, entry := range ws.entries {
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if entry.Status == status {
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result = append(result, entry)
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}
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}
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return result
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}
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// FilterByAssignee filters workflows by assignee
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func (ws *WorkflowSearch) FilterByAssignee(assignee string) []*WorkflowEntry {
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ws.mu.RLock()
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defer ws.mu.RUnlock()
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result := make([]*WorkflowEntry, 0)
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for _, entry := range ws.entries {
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if entry.Assignee == assignee {
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result = append(result, entry)
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}
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}
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return result
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}
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// FilterByTag filters workflows by tag
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func (ws *WorkflowSearch) FilterByTag(tag string) []*WorkflowEntry {
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ws.mu.RLock()
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defer ws.mu.RUnlock()
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result := make([]*WorkflowEntry, 0)
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for _, entry := range ws.entries {
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for _, t := range entry.Tags {
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if t == tag {
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result = append(result, entry)
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break
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}
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}
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}
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return result
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}
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// FilterByDateRange filters workflows by date range
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func (ws *WorkflowSearch) FilterByDateRange(start, end time.Time) []*WorkflowEntry {
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ws.mu.RLock()
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defer ws.mu.RUnlock()
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result := make([]*WorkflowEntry, 0)
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for _, entry := range ws.entries {
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if entry.CreatedAt.After(start) && entry.CreatedAt.Before(end) {
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result = append(result, entry)
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}
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}
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return result
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}
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// SearchRegex performs regex search on content
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func (ws *WorkflowSearch) SearchRegex(pattern string) ([]*WorkflowEntry, error) {
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re, err := regexp.Compile(pattern)
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if err != nil {
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return nil, err
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}
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ws.mu.RLock()
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defer ws.mu.RUnlock()
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result := make([]*WorkflowEntry, 0)
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for _, entry := range ws.entries {
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if re.MatchString(entry.Content) || re.MatchString(entry.Name) {
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result = append(result, entry)
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}
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}
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return result, nil
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}
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// SaveFilter saves a named filter
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func (ws *WorkflowSearch) SaveFilter(name string, filter interface{}) {
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ws.mu.Lock()
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defer ws.mu.Unlock()
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ws.filters[name] = filter
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}
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// GetFilter retrieves a saved filter
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func (ws *WorkflowSearch) GetFilter(name string) (interface{}, bool) {
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ws.mu.RLock()
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defer ws.mu.RUnlock()
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filter, exists := ws.filters[name]
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return filter, exists
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}
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// GetAll returns all workflows
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func (ws *WorkflowSearch) GetAll() []*WorkflowEntry {
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ws.mu.RLock()
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defer ws.mu.RUnlock()
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result := make([]*WorkflowEntry, 0, len(ws.entries))
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for _, entry := range ws.entries {
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result = append(result, entry)
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}
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return result
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}
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// GetByID retrieves a workflow by ID
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func (ws *WorkflowSearch) GetByID(id string) (*WorkflowEntry, bool) {
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ws.mu.RLock()
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defer ws.mu.RUnlock()
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entry, exists := ws.entries[id]
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return entry, exists
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}
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// Delete removes a workflow from the index
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func (ws *WorkflowSearch) Delete(id string) error {
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ws.mu.Lock()
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defer ws.mu.Unlock()
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if _, exists := ws.entries[id]; !exists {
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return fmt.Errorf("workflow not found: %s", id)
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}
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delete(ws.entries, id)
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return nil
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}
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// Clear clears the entire index
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func (ws *WorkflowSearch) Clear() {
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ws.mu.Lock()
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defer ws.mu.Unlock()
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ws.entries = make(map[string]*WorkflowEntry)
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ws.index = make(map[string][]string)
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}
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