package main

import (
	"context"
	"log"
	"net/http"
	"os"
	"path/filepath"

	"maisym.com/hsa/internal/classify"
	"maisym.com/hsa/internal/config"
	"maisym.com/hsa/internal/storage"
	"maisym.com/hsa/internal/web"
)

func main() {
	// Best-effort local dev convenience: load .env if present.
	if err := config.LoadDotEnv(".env"); err != nil {
		log.Fatalf("loading .env: %v", err)
	}

	cfg, err := config.Load()
	if err != nil {
		log.Fatalf("config: %v", err)
	}

	if err := os.MkdirAll(filepath.Dir(cfg.DBPath), 0o700); err != nil {
		log.Fatalf("create db dir: %v", err)
	}
	store, err := storage.Open(cfg.DBPath)
	if err != nil {
		log.Fatalf("open store: %v", err)
	}
	defer store.Close()

	// Load the people/categories catalog and seed it into the DB (insert-if-absent).
	catalog, err := config.LoadCatalog(cfg.ConfigPath)
	if err != nil {
		log.Fatalf("config catalog: %v", err)
	}
	if err := store.Seed(catalog.CategoryNames(), catalog.PersonLabels()); err != nil {
		log.Fatalf("seed catalog: %v", err)
	}

	// Receipt auto-classification is best-effort: only enabled when an API key is set.
	var classifier *classify.Classifier
	if cfg.ClassifyAPIKey != "" {
		classifier = classify.New(cfg.ClassifyAPIKey, cfg.ClassifyModel, catalog.Persons, catalog.Categories)
		log.Printf("receipt classification enabled (model %s)", cfg.ClassifyModel)
	} else {
		log.Printf("receipt classification disabled (CLAUDE_API_KEY not set)")
	}

	srv, err := web.NewServer(context.Background(), cfg, store, classifier)
	if err != nil {
		log.Fatalf("server init: %v", err)
	}

	log.Printf("HSA listening on %s (issuer %s)", cfg.ListenAddr, cfg.IssuerURL)
	if err := http.ListenAndServe(cfg.ListenAddr, srv.Routes()); err != nil {
		log.Fatalf("listen: %v", err)
	}
}