titor
ba927c2b2f
- Support 9 chart types: line, bar, pie, scatter, bubble, donut, mixed, polar, radar - Multi-format output: ANSI, SVG, PNG, Markdown - Go + Fiber + gonum/plot - Docker support - Morandi color palette
86 lines
2.0 KiB
Go
86 lines
2.0 KiB
Go
package service
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import (
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"fmt"
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"github.com/google/uuid"
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"github.com/picoclaw/chart/internal/renderer"
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"github.com/picoclaw/chart/internal/types"
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)
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type ChartService struct {
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svgRenderer *renderer.SVGRenderer
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pngRenderer *renderer.PNGRenderer
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ansiRenderer *renderer.ANSIRenderer
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textRenderer *renderer.TextRenderer
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chartCache map[string]*types.Chart
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}
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func NewChartService() *ChartService {
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return &ChartService{
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svgRenderer: renderer.NewSVGRenderer(),
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pngRenderer: renderer.NewPNGRenderer(),
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ansiRenderer: renderer.NewANSIRenderer(),
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textRenderer: renderer.NewTextRenderer(),
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chartCache: make(map[string]*types.Chart),
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}
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}
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func (s *ChartService) CreateChart(req *types.ChartRequest) (*types.ChartResponse, error) {
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chart := &types.Chart{
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ID: uuid.New().String(),
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Type: req.Type,
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Title: req.Title,
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Data: req.Data,
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}
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svgData, err := s.svgRenderer.Render(chart)
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if err != nil {
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return nil, fmt.Errorf("failed to render SVG: %w", err)
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}
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chart.SVG = svgData
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pngData, err := s.pngRenderer.Render(chart)
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if err != nil {
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return nil, fmt.Errorf("failed to render PNG: %w", err)
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}
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chart.PNG = pngData
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ansiData, err := s.ansiRenderer.Render(chart)
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if err != nil {
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return nil, fmt.Errorf("failed to render ANSI: %w", err)
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}
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textData, err := s.textRenderer.Render(chart)
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if err != nil {
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return nil, fmt.Errorf("failed to render text: %w", err)
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}
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s.chartCache[chart.ID] = chart
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return &types.ChartResponse{
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ChartID: chart.ID,
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Text: string(textData),
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ANSI: string(ansiData),
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SVG: string(chart.SVG),
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PNGURL: fmt.Sprintf("/api/v1/chart/%s.png", chart.ID),
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Markdown: fmt.Sprintf("", chart.Title, chart.ID),
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}, nil
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}
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func (s *ChartService) GetChart(id string) (*types.Chart, error) {
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chart, ok := s.chartCache[id]
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if !ok {
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return nil, fmt.Errorf("chart not found: %s", id)
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}
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return chart, nil
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}
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func (s *ChartService) GetChartPNG(id string) ([]byte, error) {
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chart, err := s.GetChart(id)
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if err != nil {
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return nil, err
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}
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return chart.PNG, nil
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}
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