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node_modules/appwrite/src/query.ts

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+type QueryTypesSingle = string | number | boolean;
+export type QueryTypesList = string[] | number[] | boolean[];
+export type QueryTypes = QueryTypesSingle | QueryTypesList;
+
+export class Query {
+  static equal = (attribute: string, value: QueryTypes): string =>
+    Query.addQuery(attribute, "equal", value);
+
+  static notEqual = (attribute: string, value: QueryTypes): string =>
+    Query.addQuery(attribute, "notEqual", value);
+
+  static lessThan = (attribute: string, value: QueryTypes): string =>
+    Query.addQuery(attribute, "lessThan", value);
+
+  static lessThanEqual = (attribute: string, value: QueryTypes): string =>
+    Query.addQuery(attribute, "lessThanEqual", value);
+
+  static greaterThan = (attribute: string, value: QueryTypes): string =>
+    Query.addQuery(attribute, "greaterThan", value);
+
+  static greaterThanEqual = (attribute: string, value: QueryTypes): string =>
+    Query.addQuery(attribute, "greaterThanEqual", value);
+
+  static isNull = (attribute: string): string =>
+    `isNull("${attribute}")`;
+
+  static isNotNull = (attribute: string): string =>
+    `isNotNull("${attribute}")`;
+
+  static between = (attribute: string, start: string|number, end: string|number): string =>
+    `between("${attribute}", ${Query.parseValues(start)}, ${Query.parseValues(end)})`;
+
+  static startsWith = (attribute: string, value: string): string =>
+    Query.addQuery(attribute, "startsWith", value);
+
+  static endsWith = (attribute: string, value: string): string =>
+    Query.addQuery(attribute, "endsWith", value);
+
+  static select = (attributes: string[]): string =>
+    `select([${attributes.map((attr: string) => `"${attr}"`).join(",")}])`;
+
+  static search = (attribute: string, value: string): string =>
+    Query.addQuery(attribute, "search", value);
+
+  static orderDesc = (attribute: string): string =>
+    `orderDesc("${attribute}")`;
+
+  static orderAsc = (attribute: string): string =>
+    `orderAsc("${attribute}")`;
+
+  static cursorAfter = (documentId: string): string =>
+    `cursorAfter("${documentId}")`;
+
+  static cursorBefore = (documentId: string): string =>
+    `cursorBefore("${documentId}")`;
+
+  static limit = (limit: number): string =>
+    `limit(${limit})`;
+
+  static offset = (offset: number): string =>
+    `offset(${offset})`;
+
+  private static addQuery = (attribute: string, method: string, value: QueryTypes): string =>
+    value instanceof Array
+      ? `${method}("${attribute}", [${value
+          .map((v: QueryTypesSingle) => Query.parseValues(v))
+          .join(",")}])`
+      : `${method}("${attribute}", [${Query.parseValues(value)}])`;
+
+  private static parseValues = (value: QueryTypes): string =>
+    typeof value === "string" || value instanceof String
+      ? `"${value}"`
+      : `${value}`;
+}