Resolves issue #47, search for dates and date ranges in date fields

.gitignore

@@ -49,6 +49,7 @@ Notes.md
 .env.*
 
 # development and testing files
+.notes
 aws.temp
 bulk/converted*.jsonl
 cves/deltaLog.json

ChangeLog.md

@@ -1,7 +1,12 @@
 # Change Log
 
-### 2.2.0-rc1 (Sprint 1)
+### 2.2.0-rc3 (Sprint 4)
   - exact phrase search using double quotes
+  - date and date range search on date fields, using the following formats (date ranges are inclusive):
+    - YYYY-MM-DD
+    - YYYY-MM-DDTHH:MM:SS(.mmm)(Z) (where the .mmm and Z are optional, defaults to .000Z if missing)
+    - YYYY-MM-DD..YYYY-MM-DD
+    - YYYY-MM-DDTHH:MM:SS(.mmm)(Z)..YYYY-MM-DDTHH:MM:SS.(mmm)(Z)
 
 ### 2.1.0
   - wildcard search using "*" and "?"

index.ts

@@ -26,6 +26,9 @@ export * from "./src/commands/GenericCommand.js";
 export * from "./src/commands/MainCommands.js";
 
 // common
+export * from "./src/common/IsoDate/IsoDate.js";
+export * from "./src/common/IsoDate/IsoDatetime.js";
+export * from "./src/common/IsoDate/IsoDatetimeRange.js";
 export * from "./src/common/IsoDate/IsoDateString.js";
 export * from "./src/common/Json/Json.js";
 export * from "./src/common/comparer/ObjectComparer.js";

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cve-core",
-  "version": "2.2.0-rc1",
+  "version": "2.2.0-rc3",
   "description": "CVE npm package for working with CVEs",
   "type": "module",
   "engines": {

src/adapters/search/OpensearchDatetimeUtils.test.unit.ts

@@ -5,7 +5,10 @@ import { IsoDate, IsoDatetime } from '../../common/IsoDate/IsoDatetime';
 
 describe('OpensearchDatetimeUtils.toSearchDateDslString()', () => {
   const testcases = [
+    { input: '2025-03-01T12:34:56.001Z', expected: '2025-03-01T12:34:56.001Z' },
+    { input: '2025-03-01T12:34:56.001', expected: '2025-03-01T12:34:56.001Z' },
     { input: '2025-03-01T12:34:56Z', expected: '2025-03-01T12:34:56Z' },
+    { input: '2025-03-01T12:34:56', expected: '2025-03-01T12:34:56Z' },
     { input: '2025-03-01', expected: '2025-03-01||/d' },
     { input: '2025-03', expected: '2025-03||/M' },
     { input: '2025', expected: '2025||/y' },

src/common/IsoDate/IsoDate.test.unit.ts

@@ -75,47 +75,87 @@ describe('IsoDate.parse – valid inputs', () => {
   });
 });
 
-describe('IsoDate.parse – invalid inputs', () => {
-  const invalid = [
-    '202501',      // year+month without hyphen
-    '20250101',    // compact full date (properly rejected in this class)
-    '250101',      // two‑digit year
-    '2025-13-01',  // invalid month
-    '2025-02-30',  // invalid day (Feb 30)
-    '2025-04-31',  // invalid day (April 31)
-    '-2025-04-31',  // invalid year
-    '--01-01',     // leading hyphens
-    '-2025-01',    // leading hyphen before year
-    '2025--01',    // double hyphen between year and month
-    '2025-01--01', // double hyphen before day
-    '2025-02-29',  // illegal leap year
-    '2025-01-01T014:00:00:00Z', // datetime does not match in this class
-  ];
 
-  invalid.forEach((value) => {
-    test(`throws for "${value}"`, () => {
-      expect(() => IsoDate.parse(value)).toThrow(Error);
-    });
-  });
+describe('IsoDate.parse/toString/isMonth/isDate/isYear', () => {
+  const tests: Array<{ value: string; isYear?: boolean; isMonth?: boolean; isDate?: boolean; isDatetime?: boolean; threw?: RegExp; }> = [
+    // valid ISO Date specs
+    { value: `2025`, isYear: true },
+    { value: ` 2025 `, isYear: true },
+    { value: `2025-10`, isMonth: true },
+    { value: `2024-02-29`, isDate: true },
+    // invalid ISO Date specs
+    { value: `25`, threw: /Invalid calendar date format/ },  // year must be after 1000 and before 2500
+    { value: `1899`, threw: /Year out of range/ },  // year must be after 1900 and before 2100
+    { value: `2500`, threw: /Year out of range/ },  // year must be after 1900 and before 2100
+    { value: `1/1/25`, threw: /Invalid calendar date format/ },  // bad format
+    { value: `abc`, threw: /Invalid calendar date format/ },  // bad format
+    { value: `202501`, threw: /Invalid calendar date format/ }, // year+month without hyphen
+    { value: `20250101`, threw: /Invalid calendar date format/ }, // compact full date (properly rejected in this class)
+    { value: `250101`, threw: /Invalid calendar date format/ }, // two‑digit year
+    { value: `-2025-04-31`, threw: /Invalid calendar date format/ },  // leading hyphen
+    { value: `-2025-04`, threw: /Invalid calendar date format/ },  // leading hyphen
+    { value: `01-01`, threw: /Invalid calendar date format/ },
+    { value: `2025--01`, threw: /Invalid calendar date format/ },
+    { value: `2025-01-01T014:00:00:00Z`, threw: /Invalid calendar date format/ },
+    { value: `2025-13-01`, threw: /Month out of range/ },
+    { value: `2025-02-29`, threw: /Day out of range/ }, // not a leap year
+    { value: `2025-02-30`, threw: /Day out of range/ },
+    { value: `2025-04-31`, threw: /Day out of range/ },
+  ];
 
-  invalid.forEach((value) => {
-    test(`"${value}" is not an IsoDate`, () => {
-      expect(isValidIsoDate(value)).toBeFalsy();
+  tests.forEach(({ value, isYear = false, isMonth = false, isDate = false, threw = '' }) => {
+    test(`properly determines if ${value} is a ${isYear ? 'year' : ''}${isMonth ? 'month' : ''}${isDate ? 'date' : ''}${threw ? 'error' : ''}`, () => {
+      if (threw) {
+        expect(() => IsoDate.parse(value)).toThrow(threw);
+      }
+      else {
+        const isoDate = IsoDate.parse(value);
+        if (isYear) {
+          expect(isoDate.isYear()).toBeTruthy();
+          expect(isoDate.isMonth()).toBeFalsy();
+          expect(isoDate.isDate()).toBeFalsy();
+          expect(isoDate.isDatetime()).toBeFalsy();
+        }
+        else if (isMonth) {
+          expect(isoDate.isYear()).toBeFalsy();
+          expect(isoDate.isMonth()).toBeTruthy();
+          expect(isoDate.isDate()).toBeFalsy();
+          expect(isoDate.isDatetime()).toBeFalsy();
+        }
+        else if (isDate) {
+          expect(isoDate.isYear()).toBeFalsy();
+          expect(isoDate.isMonth()).toBeFalsy();
+          expect(isoDate.isDate()).toBeTruthy();
+          expect(isoDate.isDatetime()).toBeFalsy();
+        }
+        expect(isoDate.toString()).toBe(value.trim());
+      }
     });
   });
 });
 
-describe('IsoDate.toString', () => {
-  const tests: Array<{ input: string; expected: string; }> = [
-    { input: '2025-01-01', expected: '2025-01-01' },
-    { input: '2025-01', expected: '2025-01' },
-    { input: '2025', expected: '2025' }
+
+describe('IsoDate.daysInMonth()', () => {
+  const tests: Array<{ year: number; month: number, expected: number; }> = [
+    { year: 2025, month: 1, expected: 31 },
+    { year: 2025, month: 2, expected: 28 },
+    { year: 2025, month: 3, expected: 31 },
+    { year: 2025, month: 4, expected: 30 },
+    { year: 2025, month: 5, expected: 31 },
+    { year: 2025, month: 6, expected: 30 },
+    { year: 2025, month: 7, expected: 31 },
+    { year: 2025, month: 8, expected: 31 },
+    { year: 2025, month: 9, expected: 30 },
+    { year: 2025, month: 10, expected: 31 },
+    { year: 2025, month: 11, expected: 30 },
+    { year: 2025, month: 12, expected: 31 },
+    { year: 2024, month: 2, expected: 29 }, // leap year
   ];
 
-  tests.forEach(({input, expected}) => {
-    test(`properly prints out '${input}' as '${expected}'`, () => {
-      const isoDate = IsoDate.parse(input)
-      expect(isoDate.toString()).toBe(expected)
+  tests.forEach(({ year, month, expected }) => {
+    test(`properly calculates ${year}-${month} to have ${expected} days`, () => {
+      const days = IsoDate.daysInMonth(year, month);
+      expect(days).toBe(expected);
     });
   });
-})
+});

src/common/IsoDate/IsoDate.ts

@@ -34,18 +34,32 @@
  */
 
 export class IsoDate {
-
+
+  /** the string specified by user (may be original or may be modified (e.g., trimmed))
+   *  this is necessary in order for other functions to determine user's intention
+   *  (e.g., when search date ranges, a 2025-02 value in opensearch needs to be specified as
+   *  2025-02||/M see adapters/search/OpensearchDatetimeUtils)
+  */
+  private _parsedValue: string;
+  public get parsedValue(): string {
+    return this._parsedValue;
+  }
+  protected set parsedValue(value: string) {
+    this._parsedValue = value;
+  }
+
   /** Full year (e.g., 2025) */
   public readonly year: number;
   /** Month number 1‑12 (optional) */
   public readonly month?: number;
   /** Day number 1‑31 (optional, requires month) */
   public readonly day?: number;
 
-  protected constructor(year: number, month?: number, day?: number) {
+  protected constructor(parsedValue: string, year: number, month?: number, day?: number) {
     this.year = year;
     if (month !== undefined) this.month = month;
     if (day !== undefined) this.day = day;
+    this.parsedValue = (parsedValue) ?? this.toString();
   }
 
   /**
@@ -64,6 +78,7 @@ export class IsoDate {
       // /^(?<year>\d{4})(?:[-]?(?<month>\d{2})(?:[-]?(?<day>\d{2})?)?)?$/;
       /^(?<year>\d{4})(?:[-](?<month>\d{2})(?:[-](?<day>\d{2})?)?)?$/;
 
+    value = value.trim();
     const match = regex.exec(value);
     if (!match || !match.groups) {
       throw new Error(`Invalid calendar date format: "${value}": must be one of YYYY-MM-DD, YYYY-MM, or YYYY`);
@@ -74,7 +89,7 @@ export class IsoDate {
     const dayStr = match.groups.day;
 
     // Validate year range (reasonable limits)
-    if (year < 1 || year > 2500) {
+    if (year < 1900 || year > 2100) {
       throw new Error(`Year out of range: ${year}`);
     }
 
@@ -97,35 +112,40 @@ export class IsoDate {
             )}: ${dayStr}`
           );
         }
-        return new IsoDate(year, month, day);
+        return new IsoDate(value, year, month, day);
       }
 
       // Month only (no day)
-      return new IsoDate(year, month);
+      return new IsoDate(value, year, month);
     }
 
     // Year only
-    return new IsoDate(year);
+    return new IsoDate(value, year);
   }
 
   /** Return true if the stored year is a leap year. */
   public isLeapYear(): boolean {
     return IsoDate.isLeapYear(this.year);
   }
 
-  /** Return true if the stored year is a leap year. */
+  /** Return true if the stored date is a year. */
   public isYear(): boolean {
-    return this.toString().length === 4;
+    return this.parsedValue.length === 4;
   }
 
-  /** Return true if the stored year is a leap year. */
+  /** Return true if the stored date is a month. */
   public isMonth(): boolean {
-    return this.toString().length === 7;
+    return this.parsedValue.length === 7;
   }
 
-  /** Return true if the stored year is a leap year. */
+  /** Return true if the stored date is a date. */
   public isDate(): boolean {
-    return this.toString().length === 10;
+    return this.parsedValue.length === 10;
+  }
+
+  /** Return true if the stored date is IsoDatetime. */
+  public isDatetime(): boolean {
+    return this.parsedValue.length > 10;
   }
 
 

src/common/IsoDate/IsoDatetime.test.unit.ts

@@ -65,6 +65,7 @@ describe('IsoDatetime.parse – valid inputs', () => {
   const valid = [
     { input: '2024-02-29T23:00:00+01:00', expected: '2024-02-29T22:00:00Z' }, // leap year date with offset
     { input: '2025-03-01', expected: '2025-03-01T00:00:00Z' }, // date only
+    { input: '2025-03-01T12:34:56Z', expected: '2025-03-01T12:34:56Z' },  // missing milliseconds
     { input: '2025-03-01T12:34:56.789', expected: '2025-03-01T12:34:56.789Z' },  // missing Z
     // currently does not allow the following even though it is valid in ISO 8601
     // { input: '2025-03', expected: '2024-03' }, // month only
@@ -156,6 +157,54 @@ describe('IsoDatetime.toIsoDate', () => {
   });
 });
 
+
+describe('IsoDatetime.isMonth/isDate/isYear', () => {
+  const tests: Array<{ value: string; isYear?: boolean; isMonth?: boolean; isDate?: boolean; isDatetime?: boolean; threw?: string; }> = [
+    { value: `2025`, isYear: true },
+    { value: `2025-10`, isMonth: true },
+    { value: `2025-10-02`, isDate: true },
+    { value: `2025-10-02T10:11:12Z`, isDatetime: true },
+    { value: `2025-02-29`, threw: "[Error: Day out of range" }, // not a leap year
+  ];
+
+  tests.forEach(({ value, isYear = false, isMonth = false, isDate = false, isDatetime = false, threw = '' }) => {
+    test(`properly determines if ${value} is a ${isYear ? 'year' : ''}${isMonth ? 'month' : ''}${isDate ? 'date' : ''}`, () => {
+      try {
+        const isoDatetime = IsoDatetime.parse(value);
+        if (isYear) {
+          expect(isoDatetime.isYear()).toBeTruthy();
+          expect(isoDatetime.isMonth()).toBeFalsy();
+          expect(isoDatetime.isDate()).toBeFalsy();
+          expect(isoDatetime.isDatetime()).toBeFalsy();
+        }
+        else if (isMonth) {
+          expect(isoDatetime.isYear()).toBeFalsy();
+          expect(isoDatetime.isMonth()).toBeTruthy();
+          expect(isoDatetime.isDate()).toBeFalsy();
+          expect(isoDatetime.isDatetime()).toBeFalsy();
+        }
+        else if (isDate) {
+          expect(isoDatetime.isYear()).toBeFalsy();
+          expect(isoDatetime.isMonth()).toBeFalsy();
+          expect(isoDatetime.isDate()).toBeTruthy();
+          expect(isoDatetime.isDatetime()).toBeFalsy();
+        }
+        else if (isDatetime) {
+          expect(isoDatetime.isYear()).toBeFalsy();
+          expect(isoDatetime.isMonth()).toBeFalsy();
+          expect(isoDatetime.isDate()).toBeFalsy();
+          expect(isoDatetime.isDatetime()).toBeTruthy();
+        }
+      }
+      catch (e: unknown) {
+        if (e instanceof Error) {
+          expect(e.message.startsWith(threw));
+        }
+      }
+    });
+  });
+});
+
 describe('IsoDatetime.getNextDay – day increments and decrements', () => {
   test('regular date: March 4 +1 day => March 5', () => {
     const dt = IsoDatetime.parse('2024-03-04T00:00:00Z');