package handler

import (
	"net/http"

	serverconfig "git.gabrielgio.me/cerrado/pkg/config"
	"git.gabrielgio.me/cerrado/pkg/ext"
	"git.gabrielgio.me/cerrado/pkg/handler/about"
	"git.gabrielgio.me/cerrado/pkg/handler/config"
	"git.gabrielgio.me/cerrado/pkg/handler/git"
	"git.gabrielgio.me/cerrado/pkg/handler/static"
	"git.gabrielgio.me/cerrado/pkg/service"
)

// Mount handler gets the requires service and repository to build the handlers
// This functons wraps the whole handler package and wraps it into one part so
// its sub package don't leak in other places.
func MountHandler(
	gitService *service.GitService,
	configRepo *serverconfig.ConfigurationRepository,
) (http.Handler, error) {
	var (
		gitHandler   = git.NewGitHandler(gitService, configRepo)
		aboutHandler = about.NewAboutHandler(configRepo)
		configHander = config.ConfigFile(configRepo)
	)

	staticHandler, err := static.ServeStaticHandler()
	if err != nil {
		return nil, err
	}

	mux := http.NewServeMux()

	mux.HandleFunc("/static/{file}", m(staticHandler))
	mux.HandleFunc("/{name}/about/{$}", m(gitHandler.About))
	mux.HandleFunc("/{name}", m(gitHandler.Summary))
	mux.HandleFunc("/{name}/refs/{$}", m(gitHandler.Refs))
	mux.HandleFunc("/{name}/tree/{ref}/{rest...}", m(gitHandler.Tree))
	mux.HandleFunc("/{name}/blob/{ref}/{rest...}", m(gitHandler.Blob))
	mux.HandleFunc("/{name}/log/{ref}", m(gitHandler.Log))
	mux.HandleFunc("/config", m(configHander))
	mux.HandleFunc("/about", m(aboutHandler.About))
	mux.HandleFunc("/", m(gitHandler.List))
	return mux, nil
}

func m(next func(w http.ResponseWriter, r *http.Request)) func(w http.ResponseWriter, r *http.Request) {
	return ext.Compress(next)
}