BUG: Fix empty person external link IDs

Sources/TMDb/Domain/Models/FacebookLink.swift

@@ -44,6 +44,7 @@ public struct FacebookLink: ExternalLink {
     public init?(facebookID: String?) {
         guard
             let facebookID,
+            !facebookID.isEmpty,
             let url = Self.facebookURL(for: facebookID)
         else {
             return nil

Sources/TMDb/Domain/Models/IMDbLink.swift

@@ -64,6 +64,7 @@ public struct IMDbLink: ExternalLink {
     public init?(imdbNameID: String?) {
         guard
             let imdbNameID,
+            !imdbNameID.isEmpty,
             let url = Self.imdbURL(forName: imdbNameID)
         else {
             return nil

Sources/TMDb/Domain/Models/InstagramLink.swift

@@ -44,6 +44,7 @@ public struct InstagramLink: ExternalLink {
     public init?(instagramID: String?) {
         guard
             let instagramID,
+            !instagramID.isEmpty,
             let url = Self.instagramURL(for: instagramID)
         else {
             return nil

Sources/TMDb/Domain/Models/TikTokLink.swift

@@ -44,6 +44,7 @@ public struct TikTokLink: ExternalLink {
     public init?(tikTokID: String?) {
         guard
             let tikTokID,
+            !tikTokID.isEmpty,
             let url = Self.tikTokURL(for: tikTokID)
         else {
             return nil

Sources/TMDb/Domain/Models/TwitterLink.swift

@@ -44,6 +44,7 @@ public struct TwitterLink: ExternalLink {
     public init?(twitterID: String?) {
         guard
             let twitterID,
+            !twitterID.isEmpty,
             let url = Self.twitterURL(for: twitterID)
         else {
             return nil

Sources/TMDb/Domain/Models/WikiDataLink.swift

@@ -44,6 +44,7 @@ public struct WikiDataLink: ExternalLink {
     public init?(wikiDataID: String?) {
         guard
             let wikiDataID,
+            !wikiDataID.isEmpty,
             let url = Self.wikiDataURL(for: wikiDataID)
         else {
             return nil

Sources/TMDb/Domain/Services/People/TMDbPersonService.swift

@@ -115,8 +115,9 @@ final class TMDbPersonService: PersonService {
         return personList
     }
 
-    func externalLinks(forPerson personID: Person.ID) async throws -> PersonExternalLinksCollection
-    {
+    func externalLinks(
+        forPerson personID: Person.ID
+    ) async throws -> PersonExternalLinksCollection {
         let request = PersonExternalLinksRequest(id: personID)
 
         let linksCollection: PersonExternalLinksCollection

Tests/TMDbTests/Domain/Models/FacebookLinkTests.swift

@@ -32,6 +32,13 @@ struct FacebookLinkTests {
         #expect(facebookLink == nil)
     }
 
+    @Test("Init with Facebook ID when ID is empty string returns nil")
+    func initWithFacebookIDWhenIDIsEmptyStringReturnsNil() {
+        let facebookLink = FacebookLink(facebookID: "")
+
+        #expect(facebookLink == nil)
+    }
+
     @Test("Facebook URL")
     func testURL() throws {
         let facebookID = "BarbieTheMovie"

Tests/TMDbTests/Domain/Models/IMDbLinkTests.swift

@@ -39,6 +39,13 @@ struct IMDbLinkTests {
         #expect(imdbLink == nil)
     }
 
+    @Test("init with IMDB name ID when ID is empty string returns nil")
+    func initWithIMDbNameIDWhenIDIsEmptyStringReturnsNil() {
+        let imdbLink = IMDbLink(imdbNameID: "")
+
+        #expect(imdbLink == nil)
+    }
+
     @Test("URL when using title ID returns show URL")
     func urlWhenUsingTitleIDReturnsShowURL() throws {
         let imdbID = "tt1517268"

Tests/TMDbTests/Domain/Models/InstagramLinkTests.swift

@@ -32,6 +32,13 @@ struct InstagramLinkTests {
         #expect(instagramLink == nil)
     }
 
+    @Test("init with instagramID when ID is empty string returns nil")
+    func initWithInstagramIDWhenIDIsEmptyStringReturnsNil() {
+        let instagramLink = InstagramLink(instagramID: "")
+
+        #expect(instagramLink == nil)
+    }
+
     @Test("URL returns post URL")
     func urlReturnsPostURL() throws {
         let instagramID = "barbiethemovie"

Tests/TMDbTests/Domain/Models/TikTokLinkTests.swift

@@ -32,6 +32,13 @@ struct TikTokLinkTests {
         #expect(tikTokLink == nil)
     }
 
+    @Test("init with TikTok ID when ID is empty string returns nil")
+    func initWithTikTokIDWhenIDIsEmptyStringReturnsNil() {
+        let tikTokLink = TikTokLink(tikTokID: "")
+
+        #expect(tikTokLink == nil)
+    }
+
     @Test("url returns TikTok URL")
     func urlReturnsTikTokURL() throws {
         let tikTokID = "jasonstatham"

Tests/TMDbTests/Domain/Models/TwitterLinkTests.swift

@@ -32,6 +32,13 @@ struct TwitterLinkTests {
         #expect(twitterLint == nil)
     }
 
+    @Test("init with twitterID when ID is empty string returns nil")
+    func initWithTwitterIDWhenIDIsEmptyStringReturnsNil() {
+        let twitterLint = TwitterLink(twitterID: "")
+
+        #expect(twitterLint == nil)
+    }
+
     @Test("url returns Twitter URL")
     func urlReturnsTwitterURL() throws {
         let twitterID = "barbiethemovie"

Tests/TMDbTests/Domain/Models/WikiDataLinkTests.swift

@@ -32,6 +32,13 @@ struct WikiDataLinkTests {
         #expect(wikiDataLink == nil)
     }
 
+    @Test("init with wikiDataID when ID is empty string returns nil")
+    func initWithWikiDataIDWhenIDIsEmptyStringReturnsNil() {
+        let wikiDataLink = WikiDataLink(wikiDataID: "")
+
+        #expect(wikiDataLink == nil)
+    }
+
     @Test("url returns WikiData URL")
     func urlReturnsWikiDataURL() throws {
         let wikiDataID = "Q55436290"