function getValidSelectors()

in src/AzureAppConfigurationImpl.ts [820:844]

• 23 lines of code
• 8 McCabe index (conditional complexity)

function getValidSelectors(selectors: SettingSelector[]): SettingSelector[] {
    // below code deduplicates selectors by keyFilter and labelFilter, the latter selector wins
    const uniqueSelectors: SettingSelector[] = [];
    for (const selector of selectors) {
        const existingSelectorIndex = uniqueSelectors.findIndex(s => s.keyFilter === selector.keyFilter && s.labelFilter === selector.labelFilter);
        if (existingSelectorIndex >= 0) {
            uniqueSelectors.splice(existingSelectorIndex, 1);
        }
        uniqueSelectors.push(selector);
    }

    return uniqueSelectors.map(selectorCandidate => {
        const selector = { ...selectorCandidate };
        if (!selector.keyFilter) {
            throw new ArgumentError("Key filter cannot be null or empty.");
        }
        if (!selector.labelFilter) {
            selector.labelFilter = LabelFilter.Null;
        }
        if (selector.labelFilter.includes("*") || selector.labelFilter.includes(",")) {
            throw new ArgumentError("The characters '*' and ',' are not supported in label filters.");
        }
        return selector;
    });
}