94 lines
1.9 KiB
Go
94 lines
1.9 KiB
Go
package handlers
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import (
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"errors"
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"time"
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"github.com/labstack/echo/v4"
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"git.grosinger.net/tgrosinger/saasitone/pkg/form"
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"git.grosinger.net/tgrosinger/saasitone/pkg/page"
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"git.grosinger.net/tgrosinger/saasitone/pkg/services"
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"git.grosinger.net/tgrosinger/saasitone/templ/layouts"
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"git.grosinger.net/tgrosinger/saasitone/templ/pages"
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)
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const (
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routeNameCache = "cache"
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routeNameCacheSubmit = "cache.submit"
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)
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type (
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Cache struct {
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cache *services.CacheClient
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*services.TemplateRenderer
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}
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)
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func init() {
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Register(new(Cache))
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}
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func (h *Cache) Init(c *services.Container) error {
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h.TemplateRenderer = c.TemplateRenderer
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h.cache = c.Cache
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return nil
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}
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func (h *Cache) Routes(g *echo.Group) {
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g.GET("/cache", h.Page).Name = routeNameCache
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g.POST("/cache", h.Submit).Name = routeNameCacheSubmit
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}
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func (h *Cache) Page(ctx echo.Context) error {
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p := page.New(ctx)
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p.Title = "Set a cache entry"
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p.LayoutComponent = layouts.Main
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// Fetch the value from the cache
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value, err := h.cache.
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Get().
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Key("page_cache_example").
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Fetch(ctx.Request().Context())
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var valueStrPtr *string = nil
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// Store the value in the page, so it can be rendered, if found
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switch {
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case err == nil:
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valueStr := value.(string)
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valueStrPtr = &valueStr
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case errors.Is(err, services.ErrCacheMiss):
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default:
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return fail(err, "failed to fetch from cache")
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}
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f := form.Get[pages.CacheForm](ctx)
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component := pages.Cache(p, f, valueStrPtr)
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return h.RenderPageTempl(ctx, p, component)
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}
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func (h *Cache) Submit(ctx echo.Context) error {
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var input pages.CacheForm
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if err := form.Submit(ctx, &input); err != nil {
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return err
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}
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// Set the cache
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err := h.cache.
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Set().
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Key("page_cache_example").
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Data(input.Value).
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Expiration(30 * time.Minute).
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Save(ctx.Request().Context())
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if err != nil {
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return fail(err, "unable to set cache")
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}
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form.Clear(ctx)
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return h.Page(ctx)
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}
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