package main

import (
	"slices"
	"testing"
)

// CARLOS_SIDECAR_ACCOUNTS reaches Config.SidecarAccounts through
// sidecarAccounts: trimmed, lower-cased, each a sqid. Unset and the empty
// string are nil, which is no gate; any entry that is not a sqid, and any
// other value that names no sqid, is an error serve stops on (TestServeStopsOnABadSidecarAccount runs that through the binary).
func TestSidecarAccountsParsesTheList(t *testing.T) {
	for _, tc := range []struct {
		val     string
		want    []string
		wantErr bool
	}{
		{"", nil, false},
		{"  ", nil, true},  // set, but names no sqid: refused, never "no gate"
		{",", nil, true},   // the same, and the review's case
		{" , ", nil, true}, // ditto
		{"bab", []string{"bab"}, false},
		{" BAB , cdef ,", []string{"bab", "cdef"}, false},
		{"bab,ops", nil, true},  // a name, not a sqid: o is not in the alphabet
		{"bab,ab", nil, true},   // too short
		{"bab,b-b", nil, true},  // not a letter
		{"bab;cdef", nil, true}, // wrong separator reads as one bad entry
		{"x1234567890abcdefg", nil, true},
	} {
		got, err := sidecarAccounts(func(k string) string {
			if k != "CARLOS_SIDECAR_ACCOUNTS" {
				t.Fatalf("read %s", k)
			}
			return tc.val
		})
		if (err != nil) != tc.wantErr {
			t.Errorf("CARLOS_SIDECAR_ACCOUNTS=%q: err %v, want error %v", tc.val, err, tc.wantErr)
			continue
		}
		if !slices.Equal(got, tc.want) {
			t.Errorf("CARLOS_SIDECAR_ACCOUNTS=%q: %v, want %v", tc.val, got, tc.want)
		}
	}
}