package nf

import (
	"fmt"
	"net/http"
	"strings"
)

type App struct {
	*RouterGroup
	router *router
	groups []*RouterGroup
}

func (a *App) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
	c := newContext(writer, request)
	for _, group := range a.groups {
		if strings.HasPrefix(request.URL.Path, group.prefix) {
			c.handlers = append(c.handlers, group.middlewares...)
		}
	}

	if err := a.router.handle(c); err != nil {
		writer.WriteHeader(500)
		_, _ = writer.Write([]byte(err.Error()))
	}
}

func (a *App) Get(path string, handlers ...HandlerFunc) {
	verifyHandlers(path, handlers...)
	a.router.addRoute(http.MethodGet, path, handlers...)
}

func (a *App) Post(path string, handlers ...HandlerFunc) {
	verifyHandlers(path, handlers...)
	a.router.addRoute(http.MethodPost, path, handlers...)
}

func (a *App) Delete(path string, handlers ...HandlerFunc) {
	verifyHandlers(path, handlers...)
	a.router.addRoute(http.MethodDelete, path, handlers...)
}

func (a *App) Put(path string, handlers ...HandlerFunc) {
	verifyHandlers(path, handlers...)
	a.router.addRoute(http.MethodPut, path, handlers...)
}

func (a *App) Patch(path string, handlers ...HandlerFunc) {
	verifyHandlers(path, handlers...)
	a.router.addRoute(http.MethodPatch, path, handlers...)
}

func (a *App) Head(path string, handlers ...HandlerFunc) {
	verifyHandlers(path, handlers...)
	a.router.addRoute(http.MethodHead, path, handlers...)
}

func (a *App) Run(address string) error {
	fmt.Println(banner + "nf serve at: " + address + "\n")
	return http.ListenAndServe(address, a)
}