1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
pub mod document_to_statevectors;
pub use document_to_statevectors::*;
pub mod document;
pub use document::*;
pub mod statevector;
pub use statevector::*;
pub mod document_to_agents;
pub use document_to_agents::*;
use hdi::prelude::*;
#[derive(Serialize, Deserialize, Clone)]
#[serde(tag = "type")]
#[hdk_entry_defs]
#[unit_enum(UnitEntryTypes)]
pub enum EntryTypes {
    Statevector(Statevector),
    Document(Document),
}
#[derive(Serialize, Deserialize)]
#[hdk_link_types]
pub enum LinkTypes {
    DocumentUpdates,
    AllDocuments,
    DocumentToStatevectors,
    DocumentToAgents,
}
#[hdk_extern]
pub fn genesis_self_check(_data: GenesisSelfCheckData) -> ExternResult<ValidateCallbackResult> {
    Ok(ValidateCallbackResult::Valid)
}
pub fn validate_agent_joining(
    _agent_pub_key: AgentPubKey,
    _membrane_proof: &Option<MembraneProof>,
) -> ExternResult<ValidateCallbackResult> {
    Ok(ValidateCallbackResult::Valid)
}
#[hdk_extern]
pub fn validate(op: Op) -> ExternResult<ValidateCallbackResult> {
    match op.flattened::<EntryTypes, LinkTypes>()? {
        FlatOp::StoreEntry(store_entry) => match store_entry {
            OpEntry::CreateEntry { app_entry, action } => match app_entry {
                EntryTypes::Statevector(statevector) => {
                    validate_create_statevector(EntryCreationAction::Create(action), statevector)
                }
                EntryTypes::Document(document) => {
                    validate_create_document(EntryCreationAction::Create(action), document)
                }
            },
            OpEntry::UpdateEntry {
                app_entry, action, ..
            } => match app_entry {
                EntryTypes::Statevector(statevector) => {
                    validate_create_statevector(EntryCreationAction::Update(action), statevector)
                }
                EntryTypes::Document(document) => {
                    validate_create_document(EntryCreationAction::Update(action), document)
                }
            },
            _ => Ok(ValidateCallbackResult::Valid),
        },
        FlatOp::RegisterUpdate(update_entry) => match update_entry {
            OpUpdate::Entry {
                original_action,
                original_app_entry,
                app_entry,
                action,
            } => match (app_entry, original_app_entry) {
                (EntryTypes::Document(document), EntryTypes::Document(original_document)) => {
                    validate_update_document(action, document, original_action, original_document)
                }
                (
                    EntryTypes::Statevector(statevector),
                    EntryTypes::Statevector(original_statevector),
                ) => validate_update_statevector(
                    action,
                    statevector,
                    original_action,
                    original_statevector,
                ),
                _ => Ok(ValidateCallbackResult::Invalid(
                    "Original and updated entry types must be the same".to_string(),
                )),
            },
            _ => Ok(ValidateCallbackResult::Valid),
        },
        FlatOp::RegisterDelete(delete_entry) => match delete_entry {
            OpDelete::Entry {
                original_action,
                original_app_entry,
                action,
            } => match original_app_entry {
                EntryTypes::Statevector(statevector) => {
                    validate_delete_statevector(action, original_action, statevector)
                }
                EntryTypes::Document(document) => {
                    validate_delete_document(action, original_action, document)
                }
            },
            _ => Ok(ValidateCallbackResult::Valid),
        },
        FlatOp::RegisterCreateLink {
            link_type,
            base_address,
            target_address,
            tag,
            action,
        } => match link_type {
            LinkTypes::DocumentUpdates => {
                validate_create_link_document_updates(action, base_address, target_address, tag)
            }
            LinkTypes::AllDocuments => {
                validate_create_link_all_documents(action, base_address, target_address, tag)
            }
            LinkTypes::DocumentToStatevectors => validate_create_link_document_to_statevectors(
                action,
                base_address,
                target_address,
                tag,
            ),
            LinkTypes::DocumentToAgents => {
                validate_create_link_document_to_agents(action, base_address, target_address, tag)
            }
        },
        FlatOp::RegisterDeleteLink {
            link_type,
            base_address,
            target_address,
            tag,
            original_action,
            action,
        } => match link_type {
            LinkTypes::DocumentUpdates => validate_delete_link_document_updates(
                action,
                original_action,
                base_address,
                target_address,
                tag,
            ),
            LinkTypes::AllDocuments => validate_delete_link_all_documents(
                action,
                original_action,
                base_address,
                target_address,
                tag,
            ),
            LinkTypes::DocumentToStatevectors => validate_delete_link_document_to_statevectors(
                action,
                original_action,
                base_address,
                target_address,
                tag,
            ),
            LinkTypes::DocumentToAgents => validate_delete_link_document_to_agents(
                action,
                original_action,
                base_address,
                target_address,
                tag,
            ),
        },
        FlatOp::StoreRecord(store_record) => match store_record {
            OpRecord::CreateEntry { app_entry, action } => match app_entry {
                EntryTypes::Statevector(statevector) => {
                    validate_create_statevector(EntryCreationAction::Create(action), statevector)
                }
                EntryTypes::Document(document) => {
                    validate_create_document(EntryCreationAction::Create(action), document)
                }
            },
            OpRecord::UpdateEntry {
                original_action_hash,
                app_entry,
                action,
                ..
            } => {
                let original_record = must_get_valid_record(original_action_hash)?;
                let original_action = original_record.action().clone();
                let original_action = match original_action {
                    Action::Create(create) => EntryCreationAction::Create(create),
                    Action::Update(update) => EntryCreationAction::Update(update),
                    _ => {
                        return Ok(ValidateCallbackResult::Invalid(
                            "Original action for an update must be a Create or Update action"
                                .to_string(),
                        ));
                    }
                };
                match app_entry {
                    EntryTypes::Statevector(statevector) => {
                        let result = validate_create_statevector(
                            EntryCreationAction::Update(action.clone()),
                            statevector.clone(),
                        )?;
                        if let ValidateCallbackResult::Valid = result {
                            let original_statevector: Option<Statevector> = original_record
                                .entry()
                                .to_app_option()
                                .map_err(|e| wasm_error!(e))?;
                            let original_statevector = match original_statevector {
                                Some(statevector) => statevector,
                                None => {
                                    return Ok(
                                            ValidateCallbackResult::Invalid(
                                                "The updated entry type must be the same as the original entry type"
                                                    .to_string(),
                                            ),
                                        );
                                }
                            };
                            validate_update_statevector(
                                action,
                                statevector,
                                original_action,
                                original_statevector,
                            )
                        } else {
                            Ok(result)
                        }
                    }
                    EntryTypes::Document(document) => {
                        let result = validate_create_document(
                            EntryCreationAction::Update(action.clone()),
                            document.clone(),
                        )?;
                        if let ValidateCallbackResult::Valid = result {
                            let original_document: Option<Document> = original_record
                                .entry()
                                .to_app_option()
                                .map_err(|e| wasm_error!(e))?;
                            let original_document = match original_document {
                                Some(document) => document,
                                None => {
                                    return Ok(
                                            ValidateCallbackResult::Invalid(
                                                "The updated entry type must be the same as the original entry type"
                                                    .to_string(),
                                            ),
                                        );
                                }
                            };
                            validate_update_document(
                                action,
                                document,
                                original_action,
                                original_document,
                            )
                        } else {
                            Ok(result)
                        }
                    }
                }
            }
            OpRecord::DeleteEntry {
                original_action_hash,
                action,
                ..
            } => {
                let original_record = must_get_valid_record(original_action_hash)?;
                let original_action = original_record.action().clone();
                let original_action = match original_action {
                    Action::Create(create) => EntryCreationAction::Create(create),
                    Action::Update(update) => EntryCreationAction::Update(update),
                    _ => {
                        return Ok(ValidateCallbackResult::Invalid(
                            "Original action for a delete must be a Create or Update action"
                                .to_string(),
                        ));
                    }
                };
                let app_entry_type = match original_action.entry_type() {
                    EntryType::App(app_entry_type) => app_entry_type,
                    _ => {
                        return Ok(ValidateCallbackResult::Valid);
                    }
                };
                let entry = match original_record.entry().as_option() {
                    Some(entry) => entry,
                    None => {
                        if original_action.entry_type().visibility().is_public() {
                            return Ok(
                                    ValidateCallbackResult::Invalid(
                                        "Original record for a delete of a public entry must contain an entry"
                                            .to_string(),
                                    ),
                                );
                        } else {
                            return Ok(ValidateCallbackResult::Valid);
                        }
                    }
                };
                let original_app_entry = match EntryTypes::deserialize_from_type(
                    app_entry_type.zome_index,
                    app_entry_type.entry_index,
                    entry,
                )? {
                    Some(app_entry) => app_entry,
                    None => {
                        return Ok(
                                ValidateCallbackResult::Invalid(
                                    "Original app entry must be one of the defined entry types for this zome"
                                        .to_string(),
                                ),
                            );
                    }
                };
                match original_app_entry {
                    EntryTypes::Statevector(original_statevector) => {
                        validate_delete_statevector(action, original_action, original_statevector)
                    }
                    EntryTypes::Document(original_document) => {
                        validate_delete_document(action, original_action, original_document)
                    }
                }
            }
            OpRecord::CreateLink {
                base_address,
                target_address,
                tag,
                link_type,
                action,
            } => match link_type {
                LinkTypes::DocumentUpdates => {
                    validate_create_link_document_updates(action, base_address, target_address, tag)
                }
                LinkTypes::AllDocuments => {
                    validate_create_link_all_documents(action, base_address, target_address, tag)
                }
                LinkTypes::DocumentToStatevectors => validate_create_link_document_to_statevectors(
                    action,
                    base_address,
                    target_address,
                    tag,
                ),
                LinkTypes::DocumentToAgents => validate_create_link_document_to_agents(
                    action,
                    base_address,
                    target_address,
                    tag,
                ),
            },
            OpRecord::DeleteLink {
                original_action_hash,
                base_address,
                action,
            } => {
                let record = must_get_valid_record(original_action_hash)?;
                let create_link = match record.action() {
                    Action::CreateLink(create_link) => create_link.clone(),
                    _ => {
                        return Ok(ValidateCallbackResult::Invalid(
                            "The action that a DeleteLink deletes must be a CreateLink".to_string(),
                        ));
                    }
                };
                let link_type =
                    match LinkTypes::from_type(create_link.zome_index, create_link.link_type)? {
                        Some(lt) => lt,
                        None => {
                            return Ok(ValidateCallbackResult::Valid);
                        }
                    };
                match link_type {
                    LinkTypes::DocumentUpdates => validate_delete_link_document_updates(
                        action,
                        create_link.clone(),
                        base_address,
                        create_link.target_address,
                        create_link.tag,
                    ),
                    LinkTypes::AllDocuments => validate_delete_link_all_documents(
                        action,
                        create_link.clone(),
                        base_address,
                        create_link.target_address,
                        create_link.tag,
                    ),
                    LinkTypes::DocumentToStatevectors => {
                        validate_delete_link_document_to_statevectors(
                            action,
                            create_link.clone(),
                            base_address,
                            create_link.target_address,
                            create_link.tag,
                        )
                    }
                    LinkTypes::DocumentToAgents => validate_delete_link_document_to_agents(
                        action,
                        create_link.clone(),
                        base_address,
                        create_link.target_address,
                        create_link.tag,
                    ),
                }
            }
            OpRecord::CreatePrivateEntry { .. } => Ok(ValidateCallbackResult::Valid),
            OpRecord::UpdatePrivateEntry { .. } => Ok(ValidateCallbackResult::Valid),
            OpRecord::CreateCapClaim { .. } => Ok(ValidateCallbackResult::Valid),
            OpRecord::CreateCapGrant { .. } => Ok(ValidateCallbackResult::Valid),
            OpRecord::UpdateCapClaim { .. } => Ok(ValidateCallbackResult::Valid),
            OpRecord::UpdateCapGrant { .. } => Ok(ValidateCallbackResult::Valid),
            OpRecord::Dna { .. } => Ok(ValidateCallbackResult::Valid),
            OpRecord::OpenChain { .. } => Ok(ValidateCallbackResult::Valid),
            OpRecord::CloseChain { .. } => Ok(ValidateCallbackResult::Valid),
            OpRecord::InitZomesComplete { .. } => Ok(ValidateCallbackResult::Valid),
            _ => Ok(ValidateCallbackResult::Valid),
        },
        FlatOp::RegisterAgentActivity(agent_activity) => match agent_activity {
            OpActivity::CreateAgent { agent, action } => {
                let previous_action = must_get_action(action.prev_action)?;
                match previous_action.action() {
                        Action::AgentValidationPkg(
                            AgentValidationPkg { membrane_proof, .. },
                        ) => validate_agent_joining(agent, membrane_proof),
                        _ => {
                            Ok(
                                ValidateCallbackResult::Invalid(
                                    "The previous action for a `CreateAgent` action must be an `AgentValidationPkg`"
                                        .to_string(),
                                ),
                            )
                        }
                    }
            }
            _ => Ok(ValidateCallbackResult::Valid),
        },
    }
}