main.go

package main

import (
	"database/sql"
	"fmt"
	"html/template"
	"log"
	"net/http"

	"github.com/infogulch/inject"

	"github.com/davecgh/go-spew/spew"
	_ "modernc.org/sqlite"
)

type server func()
type listenAddr string

func makeServer(addr listenAddr, h http.Handler, log *log.Logger) server {
	return func() {
		log.Print(http.ListenAndServe(string(addr), h))
	}
}

func main() {
	scope, err := inject.New(
		log.Default(),
		func() (*sql.DB, error) { return sql.Open("sqlite", "file::memory:?cache=shared") },
		func() (*template.Template, error) { return template.New("app").Parse(templateString) },
		&requestMetrics{},
		makeTodosRepository,
		[]any{logMiddleware, metricMiddleware},
		middlwares,
		[]any{home, greet},
		[]any{todosList, todosAdd, todosDel},
		handlers,
		listenAddr("0.0.0.0:8080"),
		makeServer,
	)

	if err != nil {
		panic(fmt.Errorf("failed to construct injector: %v", err))
	}

	srv, err := inject.Get[server](scope)
	if err != nil {
		spew.Dump(scope)
		panic(fmt.Errorf("failed to get server: %v", err))
	}

	srv()
}