package dyzurbot

import (
	"context"
	"os"
	"path/filepath"
	"testing"
)

// TestLiveFetch exercises the full production path — LoadConfig reads the
// environment/.env, NewService wires the Store + Syncer, and Syncer.Sync hits
// the live Google Sheets API, parses the result, and persists it to the cache
// file via Store.Replace. The resulting JSON is left on disk (CachePath,
// default rota.json) for inspection.
//
// It is skipped unless RUN_LIVE=1, so the normal `go test ./...` run stays
// offline and fast.
//
//	RUN_LIVE=1 go test -run TestLiveFetch -v .
//
// Requires GOOGLE_API_KEY and GOOGLE_SHEETS_ID in the environment/.env.
func TestLiveFetch(t *testing.T) {
	if os.Getenv("RUN_LIVE") != "1" {
		t.Skip("set RUN_LIVE=1 to run the live Google Sheets fetch")
	}

	cfg, err := LoadConfig()
	if err != nil {
		t.Fatalf("LoadConfig: %v", err)
	}
	t.Logf("config: spreadsheet=%s range=%q cache=%s",
		cfg.SpreadsheetID, cfg.SheetRange, cfg.CachePath)

	svc := NewService(cfg)
	if err := svc.Syncer.Sync(context.Background()); err != nil {
		t.Fatalf("sync: %v", err)
	}

	rota, lastSynced := svc.Store.Snapshot()
	t.Logf("synced %d weeks, %d people at %s",
		len(rota.Weeks), len(rota.People), lastSynced.Format("2006-01-02 15:04:05"))

	// Confirm the JSON actually landed on disk and show where.
	written, err := os.ReadFile(cfg.CachePath)
	if err != nil {
		t.Fatalf("read cache %q: %v", cfg.CachePath, err)
	}
	abs, _ := filepath.Abs(cfg.CachePath)
	t.Logf("wrote cache JSON (%d bytes) to %s", len(written), abs)
}