package timeutil

import (
	"testing"
	"time"
)

func TestLoadLocationAcceptsChicagoAlias(t *testing.T) {
	location, err := LoadLocation("Chicago")
	if err != nil {
		t.Fatalf("LoadLocation() error = %v", err)
	}
	if location.String() != "America/Chicago" {
		t.Fatalf("location = %q, want America/Chicago", location.String())
	}
}

func TestLoadLocationAcceptsWeatherAPITimezones(t *testing.T) {
	tests := []string{"Stl", "CDT", "-5", "+09:30"}
	for _, tt := range tests {
		t.Run(tt, func(t *testing.T) {
			if _, err := LoadLocation(tt); err != nil {
				t.Fatalf("LoadLocation(%q) error = %v", tt, err)
			}
		})
	}
}

func TestParseLocalDate(t *testing.T) {
	location := time.FixedZone("Test", -5*60*60)
	got, err := ParseLocalDate("2026-05-29", location)
	if err != nil {
		t.Fatalf("ParseLocalDate() error = %v", err)
	}
	if got.Format(DateLayout) != "2026-05-29" {
		t.Fatalf("date = %s, want 2026-05-29", got.Format(DateLayout))
	}
	if got.Location() != location {
		t.Fatalf("location = %v, want test location", got.Location())
	}
}