1+ //! # NFT Blockchain Interactive
2+ //!
3+ //! Interactive NFT system with Filecoin and NEAR blockchain integration.
4+ //! Smart contracts for connecting Nuwe system to Filecoin and NEAR blockchains.
5+
6+ use std:: collections:: HashMap ;
7+
8+ /// Main NFT blockchain interface
9+ pub struct NftBlockchainInteractive {
10+ // Filecoin integration
11+ filecoin_client : Option < FilecoinClient > ,
12+
13+ // NEAR integration
14+ near_client : Option < NearClient > ,
15+
16+ // NFT collections
17+ collections : HashMap < String , NftCollection > ,
18+
19+ // Deployment configuration
20+ deployment_config : DeploymentConfig ,
21+ }
22+
23+ /// Filecoin client for IPFS and storage operations
24+ pub struct FilecoinClient {
25+ api_endpoint : String ,
26+ auth_token : Option < String > ,
27+ }
28+
29+ /// NEAR blockchain client
30+ pub struct NearClient {
31+ network_id : String ,
32+ account_id : Option < String > ,
33+ private_key : Option < String > ,
34+ }
35+
36+ /// NFT collection metadata
37+ pub struct NftCollection {
38+ name : String ,
39+ symbol : String ,
40+ base_uri : String ,
41+ max_supply : Option < u64 > ,
42+ minted_count : u64 ,
43+ }
44+
45+ /// Deployment configuration for testnets
46+ pub struct DeploymentConfig {
47+ filecoin_testnet : bool ,
48+ near_testnet : bool ,
49+ auto_deploy : bool ,
50+ }
51+
52+ impl Default for NftBlockchainInteractive {
53+ fn default ( ) -> Self {
54+ Self {
55+ filecoin_client : None ,
56+ near_client : None ,
57+ collections : HashMap :: new ( ) ,
58+ deployment_config : DeploymentConfig :: default ( ) ,
59+ }
60+ }
61+ }
62+
63+ impl Default for DeploymentConfig {
64+ fn default ( ) -> Self {
65+ Self {
66+ filecoin_testnet : true ,
67+ near_testnet : true ,
68+ auto_deploy : false ,
69+ }
70+ }
71+ }
72+
73+ impl NftBlockchainInteractive {
74+ pub fn new ( ) -> Self {
75+ Self :: default ( )
76+ }
77+
78+ pub fn initialize_filecoin ( & mut self , endpoint : & str , auth_token : Option < & str > ) -> Result < ( ) , Box < dyn std:: error:: Error > > {
79+ self . filecoin_client = Some ( FilecoinClient {
80+ api_endpoint : endpoint. to_string ( ) ,
81+ auth_token : auth_token. map ( |s| s. to_string ( ) ) ,
82+ } ) ;
83+ Ok ( ( ) )
84+ }
85+
86+ pub fn initialize_near ( & mut self , network_id : & str , account_id : Option < & str > , private_key : Option < & str > ) -> Result < ( ) , Box < dyn std:: error:: Error > > {
87+ self . near_client = Some ( NearClient {
88+ network_id : network_id. to_string ( ) ,
89+ account_id : account_id. map ( |s| s. to_string ( ) ) ,
90+ private_key : private_key. map ( |s| s. to_string ( ) ) ,
91+ } ) ;
92+ Ok ( ( ) )
93+ }
94+
95+ pub fn create_collection ( & mut self , name : & str , symbol : & str , base_uri : & str , max_supply : Option < u64 > ) -> Result < ( ) , Box < dyn std:: error:: Error > > {
96+ let collection = NftCollection {
97+ name : name. to_string ( ) ,
98+ symbol : symbol. to_string ( ) ,
99+ base_uri : base_uri. to_string ( ) ,
100+ max_supply,
101+ minted_count : 0 ,
102+ } ;
103+
104+ self . collections . insert ( name. to_string ( ) , collection) ;
105+ Ok ( ( ) )
106+ }
107+
108+ pub fn mint_nft ( & mut self , collection_name : & str , token_id : u64 , metadata : & str ) -> Result < ( ) , Box < dyn std:: error:: Error > > {
109+ if let Some ( collection) = self . collections . get_mut ( collection_name) {
110+ if let Some ( max_supply) = collection. max_supply {
111+ if collection. minted_count >= max_supply {
112+ return Err ( "Max supply reached" . into ( ) ) ;
113+ }
114+ }
115+
116+ collection. minted_count += 1 ;
117+
118+ // Store metadata on Filecoin/IPFS if client is available
119+ if let Some ( ref filecoin) = self . filecoin_client {
120+ self . store_metadata_on_filecoin ( metadata) ?;
121+ }
122+
123+ // Mint on NEAR if client is available
124+ if let Some ( ref near) = self . near_client {
125+ self . mint_on_near ( collection_name, token_id, metadata) ?;
126+ }
127+
128+ Ok ( ( ) )
129+ } else {
130+ Err ( "Collection not found" . into ( ) )
131+ }
132+ }
133+
134+ pub fn deploy_to_testnets ( & self ) -> Result < ( ) , Box < dyn std:: error:: Error > > {
135+ if self . deployment_config . filecoin_testnet {
136+ self . deploy_filecoin_contracts ( ) ?;
137+ }
138+
139+ if self . deployment_config . near_testnet {
140+ self . deploy_near_contracts ( ) ?;
141+ }
142+
143+ Ok ( ( ) )
144+ }
145+
146+ pub fn get_collection_info ( & self , name : & str ) -> Option < & NftCollection > {
147+ self . collections . get ( name)
148+ }
149+
150+ pub fn list_collections ( & self ) -> Vec < String > {
151+ self . collections . keys ( ) . cloned ( ) . collect ( )
152+ }
153+
154+ // Private helper methods
155+ fn store_metadata_on_filecoin ( & self , metadata : & str ) -> Result < ( ) , Box < dyn std:: error:: Error > > {
156+ // Placeholder for Filecoin/IPFS storage
157+ println ! ( "Storing metadata on Filecoin: {}" , metadata) ;
158+ Ok ( ( ) )
159+ }
160+
161+ fn mint_on_near ( & self , collection_name : & str , token_id : u64 , metadata : & str ) -> Result < ( ) , Box < dyn std:: error:: Error > > {
162+ // Placeholder for NEAR minting
163+ println ! ( "Minting NFT on NEAR: {} #{}" , collection_name, token_id) ;
164+ Ok ( ( ) )
165+ }
166+
167+ fn deploy_filecoin_contracts ( & self ) -> Result < ( ) , Box < dyn std:: error:: Error > > {
168+ // Placeholder for Filecoin contract deployment
169+ println ! ( "Deploying contracts to Filecoin testnet" ) ;
170+ Ok ( ( ) )
171+ }
172+
173+ fn deploy_near_contracts ( & self ) -> Result < ( ) , Box < dyn std:: error:: Error > > {
174+ // Placeholder for NEAR contract deployment
175+ println ! ( "Deploying contracts to NEAR testnet" ) ;
176+ Ok ( ( ) )
177+ }
178+ }
179+
180+ /// Simple test function to verify the library compiles
181+ pub fn hello_nft_blockchain_interactive ( ) -> & ' static str {
182+ "Hello from NFT Blockchain Interactive! Smart contracts for Filecoin and NEAR."
183+ }
184+
185+ #[ cfg( test) ]
186+ mod tests {
187+ use super :: * ;
188+
189+ #[ test]
190+ fn test_hello ( ) {
191+ assert_eq ! ( hello_nft_blockchain_interactive( ) , "Hello from NFT Blockchain Interactive! Smart contracts for Filecoin and NEAR." ) ;
192+ }
193+
194+ #[ test]
195+ fn test_initialization ( ) {
196+ let client = NftBlockchainInteractive :: new ( ) ;
197+ assert ! ( client. filecoin_client. is_none( ) ) ;
198+ assert ! ( client. near_client. is_none( ) ) ;
199+ assert ! ( client. collections. is_empty( ) ) ;
200+ }
201+
202+ #[ test]
203+ fn test_filecoin_initialization ( ) {
204+ let mut client = NftBlockchainInteractive :: new ( ) ;
205+ let result = client. initialize_filecoin ( "https://api.filecoin.com" , Some ( "token" ) ) ;
206+ assert ! ( result. is_ok( ) ) ;
207+ assert ! ( client. filecoin_client. is_some( ) ) ;
208+ }
209+
210+ #[ test]
211+ fn test_near_initialization ( ) {
212+ let mut client = NftBlockchainInteractive :: new ( ) ;
213+ let result = client. initialize_near ( "testnet" , Some ( "account.near" ) , Some ( "private_key" ) ) ;
214+ assert ! ( result. is_ok( ) ) ;
215+ assert ! ( client. near_client. is_some( ) ) ;
216+ }
217+
218+ #[ test]
219+ fn test_create_collection ( ) {
220+ let mut client = NftBlockchainInteractive :: new ( ) ;
221+ let result = client. create_collection ( "Test Collection" , "TEST" , "ipfs://" , Some ( 1000 ) ) ;
222+ assert ! ( result. is_ok( ) ) ;
223+ assert ! ( client. collections. contains_key( "Test Collection" ) ) ;
224+ }
225+
226+ #[ test]
227+ fn test_mint_nft ( ) {
228+ let mut client = NftBlockchainInteractive :: new ( ) ;
229+ client. create_collection ( "Test Collection" , "TEST" , "ipfs://" , Some ( 1000 ) ) . unwrap ( ) ;
230+
231+ let result = client. mint_nft ( "Test Collection" , 1 , "{\" name\" : \" Test NFT\" }" ) ;
232+ assert ! ( result. is_ok( ) ) ;
233+
234+ let collection = client. get_collection_info ( "Test Collection" ) . unwrap ( ) ;
235+ assert_eq ! ( collection. minted_count, 1 ) ;
236+ }
237+
238+ #[ test]
239+ fn test_mint_nft_collection_not_found ( ) {
240+ let mut client = NftBlockchainInteractive :: new ( ) ;
241+ let result = client. mint_nft ( "Nonexistent" , 1 , "{}" ) ;
242+ assert ! ( result. is_err( ) ) ;
243+ }
244+
245+ #[ test]
246+ fn test_mint_nft_max_supply ( ) {
247+ let mut client = NftBlockchainInteractive :: new ( ) ;
248+ client. create_collection ( "Limited" , "LIMIT" , "ipfs://" , Some ( 1 ) ) . unwrap ( ) ;
249+
250+ // First mint should succeed
251+ let result1 = client. mint_nft ( "Limited" , 1 , "{}" ) ;
252+ assert ! ( result1. is_ok( ) ) ;
253+
254+ // Second mint should fail
255+ let result2 = client. mint_nft ( "Limited" , 2 , "{}" ) ;
256+ assert ! ( result2. is_err( ) ) ;
257+ }
258+
259+ #[ test]
260+ fn test_list_collections ( ) {
261+ let mut client = NftBlockchainInteractive :: new ( ) ;
262+ client. create_collection ( "Collection 1" , "C1" , "ipfs://" , None ) . unwrap ( ) ;
263+ client. create_collection ( "Collection 2" , "C2" , "ipfs://" , None ) . unwrap ( ) ;
264+
265+ let collections = client. list_collections ( ) ;
266+ assert_eq ! ( collections. len( ) , 2 ) ;
267+ assert ! ( collections. contains( & "Collection 1" . to_string( ) ) ) ;
268+ assert ! ( collections. contains( & "Collection 2" . to_string( ) ) ) ;
269+ }
270+
271+ #[ test]
272+ fn test_deployment_config ( ) {
273+ let client = NftBlockchainInteractive :: new ( ) ;
274+ assert ! ( client. deployment_config. filecoin_testnet) ;
275+ assert ! ( client. deployment_config. near_testnet) ;
276+ assert ! ( !client. deployment_config. auto_deploy) ;
277+ }
278+ }
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