fix(core): update

test/test.ts

@@ -1,13 +1,9 @@
 import { expect, tap } from '@pushrocks/tapbundle';
 import * as smartversion from '../ts/index';
 
-let localSmartVersion: smartversion.SmartVersion;
 tap.test('should create a valid SmartVersion', async () => {
-  localSmartVersion = new smartversion.SmartVersion('3.2.1');
+  const localSmartVersion = new smartversion.SmartVersion('3.2.1');
   expect(localSmartVersion).to.be.instanceof(smartversion.SmartVersion);
-});
-
-tap.test('should correctly classify greater and less than', async () => {
   // tslint:disable-next-line:no-unused-expression
   expect(localSmartVersion.greaterThanString('4.0.0')).to.be.false;
   // tslint:disable-next-line:no-unused-expression
@@ -18,4 +14,17 @@ tap.test('should correctly classify greater and less than', async () => {
   expect(localSmartVersion.lessThanString('v3.0.0')).to.be.false;
 });
 
+tap.test('should create a valid SmartVersion', async () => {
+  const localSmartVersion = smartversion.SmartVersion.fromFuzzyString('4');
+  expect(localSmartVersion).to.be.instanceof(smartversion.SmartVersion);
+  console.log(localSmartVersion.versionString);
+});
+
+tap.test('should create a valid SmartVersion', async () => {
+  const localSmartVersion = smartversion.SmartVersion.fromFuzzyString('4.x');
+  const bestMatch = localSmartVersion.getBestMatch(['4.0.1', '4.7.5', '4.3.0']);
+  console.log(bestMatch);
+  expect(bestMatch).to.equal('4.7.5');
+});
+
 tap.start();

ts/index.ts

@@ -1,9 +1,12 @@
 import * as plugins from './smartversion.plugins';
 
-import { SemVer } from 'semver';
-
 export class SmartVersion {
-  public semver: SemVer;
+  public static fromFuzzyString(fuzzyString): SmartVersion {
+    return new SmartVersion(plugins.semver.minVersion(fuzzyString).version, fuzzyString);
+  }
+
+  public originalVersionString: string;
+  public semver: plugins.semver.SemVer;
   public versionString: string;
   public update = {
     patch: () => {
@@ -17,7 +20,8 @@ export class SmartVersion {
     },
   };
 
-  constructor(semVerStringArg: string) {
+  constructor(semVerStringArg: string, originalStringArg?: string) {
+    this.originalVersionString = originalStringArg;
     this.semver = new plugins.semver.SemVer(semVerStringArg);
     this.versionString = this.semver.version;
   }
@@ -55,4 +59,24 @@ export class SmartVersion {
   public lessThanString(versionStringArg) {
     return plugins.semver.lt(this.versionString, versionStringArg);
   }
+
+  /**
+   * tries to get the best match from a range of available versions
+   */
+  public getBestMatch(availableVersions: string[]): string {
+    let bestMatchingVersion: string;
+    for (const versionArg of availableVersions) {
+      if (!plugins.semver.satisfies(versionArg, this.originalVersionString)) {
+        continue;
+      }
+      if(!bestMatchingVersion) {
+        bestMatchingVersion = versionArg;
+      } else {
+        if (plugins.semver.lt(bestMatchingVersion, versionArg)) {
+          bestMatchingVersion = versionArg;
+        }
+      }
+    }
+    return bestMatchingVersion;
+  }
 }