edc_web_components/pages/
new_contract_negotiation_page.rs1use crate::components::ConstraintRenderer;
2use crate::contexts::use_edc_connector_context;
3use crate::models::DatasetExtraFields;
4use base64::prelude::*;
5use edc_connector_client::EdcConnectorApiVersion;
6use edc_connector_client::types::Protocol;
7use edc_connector_client::types::catalog::{Dataset, DatasetRequest};
8use edc_connector_client::types::contract_negotiation::ContractRequest;
9use edc_connector_client::types::policy::{
10 AtomicConstraint, Constraint, LeftOperand, Operator, Permission, Policy, PolicyKind, Target,
11};
12use patternfly_yew::prelude::*;
13use std::fmt::Debug;
14use yew::platform::spawn_local;
15use yew::prelude::*;
16use yew::suspense::use_future_with;
17
18#[derive(Clone, Debug, PartialEq, Properties)]
19pub struct NewContractNegotiationPageProps {
20 pub originator: String,
21 pub provider_id: String,
22 pub dataset_id: String,
23 pub on_contract_negotiation_id: Callback<String>,
24}
25
26#[component]
27pub fn NewContractNegotiationPage(props: &NewContractNegotiationPageProps) -> Html {
28 html!(
29 <Stack gutter=true>
30 <StackItem>
31 <Split gutter=true>
32 <SplitItem fill=true>
33 <Title level={Level::H3} size={Size::XXLarge}>{ "Negotiate a Contract" }</Title>
34 </SplitItem>
35 </Split>
36 </StackItem>
37 <StackItem>
38 <Suspense>
39 <NewContractNegotiationPageInner
40 originator={props.originator.clone()}
41 provider_id={props.provider_id.clone()}
42 dataset_id={props.dataset_id.clone()}
43 on_contract_negotiation_id={props.on_contract_negotiation_id.clone()}
44 />
45 </Suspense>
46 </StackItem>
47 </Stack>
48 )
49}
50
51#[derive(Clone, Debug, PartialEq, Properties)]
52pub struct NewContractNegotiationPageInnerProps {
53 pub originator: String,
54 pub provider_id: String,
55 pub dataset_id: String,
56 pub on_contract_negotiation_id: Callback<String>,
57}
58
59#[component]
60pub fn NewContractNegotiationPageInner(props: &NewContractNegotiationPageInnerProps) -> HtmlResult {
61 let edc_connector_context = use_edc_connector_context();
62
63 let catalog_dataset = use_future_with(
64 (
65 edc_connector_context.clone(),
66 props.originator.clone(),
67 props.provider_id.clone(),
68 props.dataset_id.clone(),
69 ),
70 |parameters| async move {
71 let (edc_connector_context, originator, provider_id, dataset_id) = (*parameters).clone();
72
73 if let Some(edc_connector_client) = edc_connector_context.get_client() {
74 let dataset_request = DatasetRequest::builder()
75 .id(dataset_id.clone())
76 .counter_party_address(originator)
77 .counter_party_id(provider_id)
78 .protocol(Protocol::default())
79 .build();
80
81 edc_connector_client
82 .catalogue(EdcConnectorApiVersion::V4)
83 .dataset(&dataset_request)
84 .await
85 .ok()
86 .map(|catalog_dataset: Dataset<DatasetExtraFields>| {
87 (
88 catalog_dataset.id().to_string(),
89 catalog_dataset.extra.name.clone(),
90 catalog_dataset.offers().to_vec(),
91 )
92 })
93 } else {
94 None
95 }
96 },
97 )?;
98
99 let catalog_dataset = (*catalog_dataset).clone();
100
101 let selected_offer = use_state_eq(|| None);
102 let signing = use_state(|| false);
103
104 let onchange = use_callback(selected_offer.clone(), |policy: Policy, selected_offer| {
105 selected_offer.set(Some(policy))
106 });
107
108 let onclick = use_callback(
109 (
110 edc_connector_context.clone(),
111 catalog_dataset.clone(),
112 selected_offer.clone(),
113 props.originator.clone(),
114 props.provider_id.clone(),
115 signing.setter(),
116 props.on_contract_negotiation_id.clone(),
117 ),
118 |_,
119 (
120 edc_connector_context,
121 catalog_dataset,
122 selected_offer,
123 originator,
124 provider_id,
125 signing_setter,
126 on_contract_negotiation_id,
127 )| {
128 let edc_connector_context = edc_connector_context.clone();
129 if let Some(policy) = (**selected_offer).clone()
130 && let Some(catalog_dataset) = catalog_dataset
131 {
132 let originator = originator.clone();
133 let provider_id = provider_id.clone();
134 let asset_id = catalog_dataset.0.to_string();
135
136 signing_setter.set(true);
137 let signing_setter = signing_setter.clone();
138 let on_contract_negotiation_id = on_contract_negotiation_id.clone();
139
140 spawn_local(async move {
141 if let Some(edc_client) = edc_connector_context.get_client() {
142 let counter_party_address = originator.clone();
144 let counter_party_id = provider_id.clone();
145
146 log::warn!("counter_party_address: {}", counter_party_address);
147 let policy: Policy = policy.clone();
148
149 if let Some(id) = policy.id() {
150 let policy_builder = Policy::builder()
151 .assigner(provider_id)
152 .id(id)
153 .kind(PolicyKind::Offer)
154 .permissions(
155 policy
156 .permissions()
157 .iter()
158 .map(|permission| {
159 Permission::builder()
160 .action(edc_connector_client::types::policy::Action::Simple(
161 "use".to_string(),
162 ))
163 .constraints(
164 permission
165 .constraints()
166 .iter()
167 .map(|constraint| match constraint {
168 Constraint::Atomic(atomic_constraint) => {
169 let left_operand = match &atomic_constraint.left_operand {
170 LeftOperand::Simple(simple) => {
171 LeftOperand::Simple(simple.to_string())
172 }
173 LeftOperand::Id { id } => LeftOperand::Simple(id.to_string()),
174 };
175
176 let operator = match &atomic_constraint.operator {
177 Operator::Simple(simple) => Operator::Simple(simple.to_string()),
178 Operator::Id { id } => Operator::Simple(
179 id.to_string().replace("http://www.w3.org/ns/odrl/2/", ""),
180 ),
181 };
182
183 Constraint::Atomic(AtomicConstraint {
184 left_operand,
185 operator,
186 right_operand: atomic_constraint.right_operand.clone(),
187 })
188 }
189 Constraint::MultiplicityConstraint(multiplicity_constraint) => {
190 Constraint::MultiplicityConstraint(multiplicity_constraint.clone())
191 }
192 })
193 .collect(),
194 )
195 .build()
196 })
197 .collect(),
198 )
199 .prohibitions(policy.prohibitions().to_vec())
200 .obligations(policy.obligations().to_vec())
201 .target(Target::Simple(asset_id));
202
203 let policy_builder =
204 policy_builder.extensible_properties(std::collections::HashMap::<
205 String,
206 serde_json::Value,
207 >::from([(
208 "policy:isan".to_string(),
209 serde_json::Value::String("123456".to_string()),
210 )]));
211
212 let policy = policy_builder.build();
213
214 let new_contract_request = ContractRequest::builder()
215 .protocol(Protocol::new("dataspace-protocol-http:2025-1"))
216 .counter_party_address(&counter_party_address)
217 .counter_party_id(counter_party_id)
218 .policy(policy)
219 .build();
220
221 match edc_client
222 .contract_negotiations(EdcConnectorApiVersion::V4)
223 .initiate(&new_contract_request)
224 .await
225 {
226 Ok(contract_negotiation_id) => {
227 log::info!(
228 "Contract negotiation initiated: {}",
229 contract_negotiation_id.id()
230 );
231
232 on_contract_negotiation_id.emit(contract_negotiation_id.id().to_string());
233 }
234 Err(error) => {
235 log::error!("Error initiating contract negotiation: {}", error);
236 }
237 }
238 };
239 }
240
241 signing_setter.set(false);
242 })
243 }
244 },
245 );
246
247 if let Some(catalog_dataset) = catalog_dataset {
248 let provider_id = props.provider_id.clone();
249 let asset_id = catalog_dataset.0.clone();
250 let asset_name = catalog_dataset.1.clone();
251 let policies = catalog_dataset.2;
252 let disabled = *signing;
253
254 let offers = policies
255 .iter()
256 .filter_map(|policy: &Policy| {
257 if let Some(offer_id) = policy.id().and_then(|policy| policy.split(':').next()) {
258 BASE64_STANDARD
259 .decode(offer_id)
260 .ok()
261 .and_then(|offer_id| String::from_utf8(offer_id).ok())
262 .map(|offer_id| (policy, offer_id))
263 } else {
264 None
265 }
266 })
267 .map(|(policy, offer_id): (&Policy, String)| {
268 let onchange = onchange.clone();
269
270 let permissions = policy.permissions().iter().map(|permission| {
271 html! {
272 <ConstraintRenderer
273 action={permission.action().clone()}
274 constraints={permission.constraints().to_vec()}
275 />
276 }
277 });
278
279 let obligations = policy.obligations().iter().map(|obligation| {
280 html! {
281 <ConstraintRenderer
282 action={obligation.action().clone()}
283 constraints={obligation.constraints().to_vec()}
284 />
285 }
286 });
287
288 let prohibitions = policy.prohibitions().iter().map(|prohibition| {
289 html! {
290 <ConstraintRenderer
291 action={prohibition.action().clone()}
292 constraints={prohibition.constraints().to_vec()}
293 />
294 }
295 });
296
297 let policy = policy.clone();
298
299 html!(
300 <Card id="selectable-offer" selectable=true {disabled}>
301 <CardHeader
302 selectable_actions={yew::props!(CardSelectableActionsObjectProperties {
303 action: CardSelectableActionsVariant::SingleSelect {
304 onchange: Some(onchange.reform(move |_| policy.clone())),
305 },
306 base: yew::props!(CardSelectableActionsObjectBase {
307 name: "selectable-offer"
308 })
309 })}
310 >
311 <CardTitle>{ offer_id.to_string() }</CardTitle>
312 </CardHeader>
313 <CardBody>
314 <DescriptionList>
315 <DescriptionGroup term="Permissions">{ for permissions }</DescriptionGroup>
316 <DescriptionGroup term="Obligations">{ for obligations }</DescriptionGroup>
317 <DescriptionGroup term="Prohibitions">{ for prohibitions }</DescriptionGroup>
318 </DescriptionList>
319 </CardBody>
320 </Card>
321 )
322 });
323
324 let disabled = selected_offer.is_none() || *signing;
325
326 Ok(html!(
327 <>
328 <DescriptionList>
329 <DescriptionGroup term="Provider ID">{ provider_id }</DescriptionGroup>
330 <DescriptionGroup term="Asset ID">{ asset_id }</DescriptionGroup>
331 <DescriptionGroup term="Asset Name">{ asset_name }</DescriptionGroup>
332 <DescriptionGroup term="Offer IDs">
333 <Gallery>{ for offers }</Gallery>
334 </DescriptionGroup>
335 </DescriptionList>
336 <Split gutter=true>
337 <SplitItem fill=true />
338 <SplitItem>
339 <Button variant={ButtonVariant::Primary} icon={Icon::Check} {disabled} {onclick}>
340 { "Sign" }
341 </Button>
342 </SplitItem>
343 </Split>
344 </>
345 ))
346 } else {
347 Ok(html!({ "The offer is not available." }))
348 }
349}