package middleware

import "testing"

func TestParseLoginType(t *testing.T) {
	tests := []struct {
		name   string
		claims map[string]interface{}
		want   string
	}{
		{
			name:   "prefer CtxLoginType when both exist",
			claims: map[string]interface{}{"CtxLoginType": "device", "LoginType": "email"},
			want:   "device",
		},
		{
			name:   "fallback to legacy LoginType",
			claims: map[string]interface{}{"LoginType": "device"},
			want:   "device",
		},
		{
			name:   "ignore non-string values",
			claims: map[string]interface{}{"CtxLoginType": 123, "LoginType": true},
			want:   "",
		},
		{
			name:   "empty values return empty",
			claims: map[string]interface{}{"CtxLoginType": "", "LoginType": ""},
			want:   "",
		},
		{
			name:   "missing values return empty",
			claims: map[string]interface{}{},
			want:   "",
		},
	}

	for _, testCase := range tests {
		t.Run(testCase.name, func(t *testing.T) {
			got := parseLoginType(testCase.claims)
			if got != testCase.want {
				t.Fatalf("parseLoginType() = %q, want %q", got, testCase.want)
			}
		})
	}
}