package ginext

import (
	"github.com/gin-gonic/gin"
	"net/http"
)

var anyMethods = []string{
	http.MethodGet, http.MethodPost, http.MethodPut, http.MethodPatch,
	http.MethodHead, http.MethodOptions, http.MethodDelete, http.MethodConnect,
	http.MethodTrace,
}

type GinRoutesWrapper struct {
	wrapper *GinWrapper
	routes  gin.IRouter
}

type GinRouteBuilder struct {
	routes *GinRoutesWrapper

	methods  []string
	relPath  string
	handlers []gin.HandlerFunc
}

func (w *GinWrapper) Routes() *GinRoutesWrapper {
	return &GinRoutesWrapper{wrapper: w, routes: w.engine}
}

func (w *GinRoutesWrapper) Group(relativePath string) *GinRoutesWrapper {
	return &GinRoutesWrapper{wrapper: w.wrapper, routes: w.routes.Group(relativePath)}
}

func (w *GinRoutesWrapper) GET(relativePath string) *GinRouteBuilder {
	return &GinRouteBuilder{routes: w, methods: []string{http.MethodGet}, relPath: relativePath, handlers: make([]gin.HandlerFunc, 0)}
}

func (w *GinRoutesWrapper) POST(relativePath string) *GinRouteBuilder {
	return &GinRouteBuilder{routes: w, methods: []string{http.MethodPost}, relPath: relativePath, handlers: make([]gin.HandlerFunc, 0)}
}

func (w *GinRoutesWrapper) DELETE(relativePath string) *GinRouteBuilder {
	return &GinRouteBuilder{routes: w, methods: []string{http.MethodDelete}, relPath: relativePath, handlers: make([]gin.HandlerFunc, 0)}
}

func (w *GinRoutesWrapper) PATCH(relativePath string) *GinRouteBuilder {
	return &GinRouteBuilder{routes: w, methods: []string{http.MethodPatch}, relPath: relativePath, handlers: make([]gin.HandlerFunc, 0)}
}

func (w *GinRoutesWrapper) PUT(relativePath string) *GinRouteBuilder {
	return &GinRouteBuilder{routes: w, methods: []string{http.MethodPut}, relPath: relativePath, handlers: make([]gin.HandlerFunc, 0)}
}

func (w *GinRoutesWrapper) OPTIONS(relativePath string) *GinRouteBuilder {
	return &GinRouteBuilder{routes: w, methods: []string{http.MethodOptions}, relPath: relativePath, handlers: make([]gin.HandlerFunc, 0)}
}

func (w *GinRoutesWrapper) HEAD(relativePath string) *GinRouteBuilder {
	return &GinRouteBuilder{routes: w, methods: []string{http.MethodHead}, relPath: relativePath, handlers: make([]gin.HandlerFunc, 0)}
}

func (w *GinRoutesWrapper) COUNT(relativePath string) *GinRouteBuilder {
	return &GinRouteBuilder{routes: w, methods: []string{"COUNT"}, relPath: relativePath, handlers: make([]gin.HandlerFunc, 0)}
}

func (w *GinRoutesWrapper) Any(relativePath string) *GinRouteBuilder {
	return &GinRouteBuilder{routes: w, methods: anyMethods, relPath: relativePath, handlers: make([]gin.HandlerFunc, 0)}
}

func (w *GinRouteBuilder) Use(middleware ...gin.HandlerFunc) *GinRouteBuilder {
	w.handlers = append(w.handlers, middleware...)
	return w
}

func (w *GinRouteBuilder) Handle(handler WHandlerFunc) {
	w.handlers = append(w.handlers, Wrap(w.routes.wrapper, handler))
	for _, m := range w.methods {
		w.routes.routes.Handle(m, w.relPath, w.handlers...)
	}
}

func (w *GinWrapper) NoRoute(handler WHandlerFunc) {
	w.engine.NoRoute(Wrap(w, handler))
}