// Would this server switch Nearle Buddy on?
//
//	APP_ENV=production go run ./scratch/buddyconfig
//
// Reads the configuration exactly as `main.go` does — same files, same order,
// same defaults — and reports whether the assistant would be built. Prints a
// verdict and, when the answer is no, the name of the variable that is missing.
// Never a value: this exists to be run against production configuration.
//
// Connects to nothing. `config.Load` reads and validates; the database, the
// model and the queue are all somebody else's job.
package main

import (
	"fmt"
	"os"

	"nearle/config"
	"nearle/utils"
)

func main() {
	cfg, err := config.Load()
	if err != nil {
		fmt.Println("configuration is not valid:")
		fmt.Println(err)
		os.Exit(1)
	}

	fmt.Printf("APP_ENV            %s\n", cfg.AppEnv)
	fmt.Printf("sessions can issue %t\n", utils.WebTokenConfigured())

	if !cfg.Assistant.Enabled() {
		fmt.Printf("assistant          OFF — %s\n", cfg.Assistant.Why())
		os.Exit(1)
	}

	// The gateway itself, built the way the facade builds it. Enabled() passing
	// and NewChat returning nil would be a disagreement worth catching here
	// rather than at the first question somebody asks.
	chat, err := utils.NewChat(cfg.Assistant)
	if err != nil || chat == nil {
		fmt.Printf("assistant          OFF — gateway not built: %v\n", err)
		os.Exit(1)
	}

	fmt.Printf("assistant          ON  — provider %s, balanced tier %s\n",
		cfg.Assistant.Provider, cfg.Assistant.ModelFor(utils.TierBalanced))
}