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 = policy_builder.build();
204
205 let new_contract_request = ContractRequest::builder()
206 .protocol(Protocol::new("dataspace-protocol-http:2025-1"))
207 .counter_party_address(&counter_party_address)
208 .counter_party_id(counter_party_id)
209 .policy(policy)
210 .build();
211
212 match edc_client
213 .contract_negotiations(EdcConnectorApiVersion::V4)
214 .initiate(&new_contract_request)
215 .await
216 {
217 Ok(contract_negotiation_id) => {
218 log::info!(
219 "Contract negotiation initiated: {}",
220 contract_negotiation_id.id()
221 );
222
223 on_contract_negotiation_id.emit(contract_negotiation_id.id().to_string());
224 }
225 Err(error) => {
226 log::error!("Error initiating contract negotiation: {}", error);
227 }
228 }
229 };
230 }
231
232 signing_setter.set(false);
233 })
234 }
235 },
236 );
237
238 if let Some(catalog_dataset) = catalog_dataset {
239 let provider_id = props.provider_id.clone();
240 let asset_id = catalog_dataset.0.clone();
241 let asset_name = catalog_dataset.1.clone();
242 let policies = catalog_dataset.2;
243 let disabled = *signing;
244
245 let offers = policies
246 .iter()
247 .filter_map(|policy: &Policy| {
248 if let Some(offer_id) = policy.id().and_then(|policy| policy.split(':').next()) {
249 BASE64_STANDARD
250 .decode(offer_id)
251 .ok()
252 .and_then(|offer_id| String::from_utf8(offer_id).ok())
253 .map(|offer_id| (policy, offer_id))
254 } else {
255 None
256 }
257 })
258 .map(|(policy, offer_id): (&Policy, String)| {
259 let onchange = onchange.clone();
260
261 let permissions = policy.permissions().iter().map(|permission| {
262 html! {
263 <ConstraintRenderer
264 action={permission.action().clone()}
265 constraints={permission.constraints().to_vec()}
266 />
267 }
268 });
269
270 let obligations = policy.obligations().iter().map(|obligation| {
271 html! {
272 <ConstraintRenderer
273 action={obligation.action().clone()}
274 constraints={obligation.constraints().to_vec()}
275 />
276 }
277 });
278
279 let prohibitions = policy.prohibitions().iter().map(|prohibition| {
280 html! {
281 <ConstraintRenderer
282 action={prohibition.action().clone()}
283 constraints={prohibition.constraints().to_vec()}
284 />
285 }
286 });
287
288 let policy = policy.clone();
289
290 html!(
291 <Card id="selectable-offer" selectable=true {disabled}>
292 <CardHeader
293 selectable_actions={yew::props!(CardSelectableActionsObjectProperties {
294 action: CardSelectableActionsVariant::SingleSelect {
295 onchange: Some(onchange.reform(move |_| policy.clone())),
296 },
297 base: yew::props!(CardSelectableActionsObjectBase {
298 name: "selectable-offer"
299 })
300 })}
301 >
302 <CardTitle>{ offer_id.to_string() }</CardTitle>
303 </CardHeader>
304 <CardBody>
305 <DescriptionList>
306 <DescriptionGroup term="Permissions">{ for permissions }</DescriptionGroup>
307 <DescriptionGroup term="Obligations">{ for obligations }</DescriptionGroup>
308 <DescriptionGroup term="Prohibitions">{ for prohibitions }</DescriptionGroup>
309 </DescriptionList>
310 </CardBody>
311 </Card>
312 )
313 });
314
315 let disabled = selected_offer.is_none() || *signing;
316
317 Ok(html!(
318 <>
319 <DescriptionList>
320 <DescriptionGroup term="Provider ID">{ provider_id }</DescriptionGroup>
321 <DescriptionGroup term="Asset ID">{ asset_id }</DescriptionGroup>
322 <DescriptionGroup term="Asset Name">{ asset_name }</DescriptionGroup>
323 <DescriptionGroup term="Offer IDs">
324 <Gallery>{ for offers }</Gallery>
325 </DescriptionGroup>
326 </DescriptionList>
327 <Split gutter=true>
328 <SplitItem fill=true />
329 <SplitItem>
330 <Button variant={ButtonVariant::Primary} icon={Icon::Check} {disabled} {onclick}>
331 { "Sign" }
332 </Button>
333 </SplitItem>
334 </Split>
335 </>
336 ))
337 } else {
338 Ok(html!({ "The offer is not available." }))
339 }
340}