package web

import (
	"fmt"
	"fuj-management/go/internal/config"
	"fuj-management/go/internal/services/membership"
	"fuj-management/go/internal/web/api"
	"fuj-management/go/internal/web/middleware"
	"log/slog"
	"net/http"
)

// BuildInfo carries the linker-injected build metadata.
type BuildInfo struct {
	Version   string
	Commit    string
	BuildDate string
}

// Run registers routes and starts the HTTP server on addr.
func Run(logger *slog.Logger, addr string, build BuildInfo, sources membership.Sources, cfg config.Config) error {
	h := &api.Handler{
		BuildVersion: build.Version,
		BuildCommit:  build.Commit,
		BuildDate:    build.BuildDate,
		Sources:      sources,
		Config:       cfg,
		Logger:       logger,
	}

	mux := http.NewServeMux()
	mux.HandleFunc("GET /{$}", helloHandler(build))
	mux.HandleFunc("GET /api/version", h.ServeVersion)
	mux.HandleFunc("GET /api/adults", h.ServeAdults)
	mux.HandleFunc("GET /api/juniors", h.ServeJuniors)
	mux.HandleFunc("GET /api/payments", h.ServePayments)

	logger.Info("starting server", "addr", addr)
	return http.ListenAndServe(addr, middleware.RequestTimer(logger, mux))
}

func helloHandler(build BuildInfo) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
		fmt.Fprintf(w, "fuj-go ok\nversion: %s\ncommit:  %s\nbuilt:   %s\n",
			build.Version, build.Commit, build.BuildDate)
	}
}