73 lines
1.3 KiB
Go
73 lines
1.3 KiB
Go
package core
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import (
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"errors"
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mcontext "github.com/abelith/gomax/context"
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)
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type Middleware func(next HandlerFunc) HandlerFunc
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type Filter func(c *mcontext.Context) bool
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type route struct {
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h UpdateHandler
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filters []func(c *mcontext.Context) bool
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}
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type Router struct {
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routes []route
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mw []Middleware
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}
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func (r *Router) HandleUpdate(c *mcontext.Context) error {
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var current HandlerFunc = r.dispatch
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for i := len(r.mw) - 1; i >= 0; i-- {
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current = r.mw[i](current)
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}
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return current.HandleUpdate(c)
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}
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func (r *Router) Use(mws ...Middleware) {
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r.mw = append(r.mw, mws...)
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}
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func (r *Router) HandleFunc(h HandlerFunc, filters ...func(c *mcontext.Context) bool) {
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r.routes = append(r.routes, route{
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h: h,
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filters: filters,
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})
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}
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func (r *Router) Handle(h UpdateHandler, filters ...func(c *mcontext.Context) bool) {
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r.routes = append(r.routes, route{
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h: h,
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filters: filters,
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})
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}
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func (r *Router) dispatch(c *mcontext.Context) error {
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for _, rt := range r.routes {
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if match(rt.filters, c) {
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err := rt.h.HandleUpdate(c)
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if errors.Is(err, ErrRouteNotFound) {
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continue
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}
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return err
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}
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}
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return ErrRouteNotFound
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}
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func match(filters []func(c *mcontext.Context) bool, c *mcontext.Context) bool {
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for _, filter := range filters {
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if !filter(c) {
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return false
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}
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}
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return true
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}
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