backbone_bucket/domain/entity/
processing_job.rs

1use chrono::{DateTime, Utc, Duration};
2use serde::{Deserialize, Serialize};
3use sqlx::FromRow;
4use uuid::Uuid;
5
6use super::ProcessingJobType;
7use super::JobStatus;
8use super::AuditMetadata;
9
10use super::*;
11
12use crate::domain::state_machine::{ProcessingJobStateMachine, ProcessingJobState, StateMachineError};
13
14use thiserror::Error;
15
16/// Domain error for joberror operations
17#[derive(Debug, Clone, Error)]
18pub enum JobError {
19    #[error("{0}")]
20    Message(String),
21
22    #[error("Not found: {0}")]
23    NotFound(String),
24
25    #[error("Validation failed: {0}")]
26    ValidationFailed(String),
27
28    #[error("Conflict: {0}")]
29    Conflict(String),
30}
31
32impl From<String> for JobError {
33    fn from(msg: String) -> Self { Self::Message(msg) }
34}
35
36impl From<&str> for JobError {
37    fn from(msg: &str) -> Self { Self::Message(msg.to_string()) }
38}
39
40
41/// Strongly-typed ID for ProcessingJob
42#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
43#[serde(transparent)]
44pub struct ProcessingJobId(pub Uuid);
45
46impl ProcessingJobId {
47    pub fn new(id: Uuid) -> Self { Self(id) }
48    pub fn generate() -> Self { Self(Uuid::new_v4()) }
49    pub fn into_inner(self) -> Uuid { self.0 }
50}
51
52impl std::fmt::Display for ProcessingJobId {
53    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
54        write!(f, "{}", self.0)
55    }
56}
57
58impl std::str::FromStr for ProcessingJobId {
59    type Err = uuid::Error;
60    fn from_str(s: &str) -> Result<Self, Self::Err> {
61        Ok(Self(Uuid::parse_str(s)?))
62    }
63}
64
65impl From<Uuid> for ProcessingJobId {
66    fn from(id: Uuid) -> Self { Self(id) }
67}
68
69impl From<ProcessingJobId> for Uuid {
70    fn from(id: ProcessingJobId) -> Self { id.0 }
71}
72
73impl AsRef<Uuid> for ProcessingJobId {
74    fn as_ref(&self) -> &Uuid { &self.0 }
75}
76
77impl std::ops::Deref for ProcessingJobId {
78    type Target = Uuid;
79    fn deref(&self) -> &Self::Target { &self.0 }
80}
81
82#[derive(Debug, Clone, Serialize, Deserialize, FromRow)]
83pub struct ProcessingJob {
84    pub id: Uuid,
85    pub file_id: Uuid,
86    pub job_type: ProcessingJobType,
87    pub(crate) status: JobStatus,
88    pub priority: i32,
89    pub input_data: Option<serde_json::Value>,
90    pub result_data: Option<serde_json::Value>,
91    pub error_message: Option<String>,
92    pub started_at: Option<DateTime<Utc>>,
93    pub completed_at: Option<DateTime<Utc>>,
94    pub retry_count: i32,
95    pub max_retries: i32,
96    #[serde(default)]
97    #[sqlx(json)]
98    pub metadata: AuditMetadata,
99}
100
101impl ProcessingJob {
102    /// Create a builder for ProcessingJob
103    pub fn builder() -> ProcessingJobBuilder {
104        <ProcessingJobBuilder as Default>::default()
105    }
106
107    /// Create a new ProcessingJob with required fields
108    pub fn new(file_id: Uuid, job_type: ProcessingJobType, status: JobStatus, priority: i32, retry_count: i32, max_retries: i32) -> Self {
109        Self {
110            id: Uuid::new_v4(),
111            file_id,
112            job_type,
113            status,
114            priority,
115            input_data: None,
116            result_data: None,
117            error_message: None,
118            started_at: None,
119            completed_at: None,
120            retry_count,
121            max_retries,
122            metadata: AuditMetadata::default(),
123        }
124    }
125
126    /// Get the entity's unique identifier
127    pub fn id(&self) -> &Uuid {
128        &self.id
129    }
130
131    /// Get a strongly-typed ID for this entity
132    pub fn typed_id(&self) -> ProcessingJobId {
133        ProcessingJobId(self.id)
134    }
135
136    /// Get when this entity was created
137    pub fn created_at(&self) -> Option<&DateTime<Utc>> {
138        self.metadata.created_at.as_ref()
139    }
140
141    /// Get when this entity was last updated
142    pub fn updated_at(&self) -> Option<&DateTime<Utc>> {
143        self.metadata.updated_at.as_ref()
144    }
145
146    /// Check if this entity is soft deleted
147    pub fn is_deleted(&self) -> bool {
148        self.metadata.deleted_at.is_some()
149    }
150
151    /// Check if this entity is active (not deleted)
152    pub fn is_active(&self) -> bool {
153        self.metadata.deleted_at.is_none()
154    }
155
156    /// Get when this entity was deleted
157    pub fn deleted_at(&self) -> Option<&DateTime<Utc>> {
158        self.metadata.deleted_at.as_ref()
159    }
160
161    /// Get who created this entity
162    pub fn created_by(&self) -> Option<&Uuid> {
163        self.metadata.created_by.as_ref()
164    }
165
166    /// Get who last updated this entity
167    pub fn updated_by(&self) -> Option<&Uuid> {
168        self.metadata.updated_by.as_ref()
169    }
170
171    /// Get who deleted this entity
172    pub fn deleted_by(&self) -> Option<&Uuid> {
173        self.metadata.deleted_by.as_ref()
174    }
175
176    /// Get the current status
177    pub fn status(&self) -> &JobStatus {
178        &self.status
179    }
180
181
182    // ==========================================================
183    // Fluent Setters (with_* for optional fields)
184    // ==========================================================
185
186    /// Set the input_data field (chainable)
187    pub fn with_input_data(mut self, value: serde_json::Value) -> Self {
188        self.input_data = Some(value);
189        self
190    }
191
192    /// Set the result_data field (chainable)
193    pub fn with_result_data(mut self, value: serde_json::Value) -> Self {
194        self.result_data = Some(value);
195        self
196    }
197
198    /// Set the error_message field (chainable)
199    pub fn with_error_message(mut self, value: String) -> Self {
200        self.error_message = Some(value);
201        self
202    }
203
204    /// Set the started_at field (chainable)
205    pub fn with_started_at(mut self, value: DateTime<Utc>) -> Self {
206        self.started_at = Some(value);
207        self
208    }
209
210    /// Set the completed_at field (chainable)
211    pub fn with_completed_at(mut self, value: DateTime<Utc>) -> Self {
212        self.completed_at = Some(value);
213        self
214    }
215
216    // ==========================================================
217    // State Machine
218    // ==========================================================
219
220    /// Transition to a new state via the status state machine.
221    ///
222    /// Returns `Err` if the transition is not permitted from the current state.
223    /// Use this method instead of assigning `self.status` directly.
224    pub fn transition_to(&mut self, new_state: ProcessingJobState) -> Result<(), StateMachineError> {
225        let current = self.status.to_string().parse::<ProcessingJobState>()?;
226        let mut sm = ProcessingJobStateMachine::from_state(current);
227        sm.transition_to_state(new_state)?;
228        self.status = new_state.to_string().parse::<JobStatus>()
229            .map_err(|e| StateMachineError::InvalidState(e.to_string()))?;
230        Ok(())
231    }
232
233    // ==========================================================
234    // Partial Update
235    // ==========================================================
236
237    /// Apply partial updates from a map of field name to JSON value
238    pub fn apply_patch(&mut self, fields: std::collections::HashMap<String, serde_json::Value>) {
239        for (key, value) in fields {
240            match key.as_str() {
241                "file_id" => {
242                    if let Ok(v) = serde_json::from_value(value) { self.file_id = v; }
243                }
244                "job_type" => {
245                    if let Ok(v) = serde_json::from_value(value) { self.job_type = v; }
246                }
247                "priority" => {
248                    if let Ok(v) = serde_json::from_value(value) { self.priority = v; }
249                }
250                "input_data" => {
251                    if let Ok(v) = serde_json::from_value(value) { self.input_data = v; }
252                }
253                "result_data" => {
254                    if let Ok(v) = serde_json::from_value(value) { self.result_data = v; }
255                }
256                "error_message" => {
257                    if let Ok(v) = serde_json::from_value(value) { self.error_message = v; }
258                }
259                "started_at" => {
260                    if let Ok(v) = serde_json::from_value(value) { self.started_at = v; }
261                }
262                "completed_at" => {
263                    if let Ok(v) = serde_json::from_value(value) { self.completed_at = v; }
264                }
265                "retry_count" => {
266                    if let Ok(v) = serde_json::from_value(value) { self.retry_count = v; }
267                }
268                "max_retries" => {
269                    if let Ok(v) = serde_json::from_value(value) { self.max_retries = v; }
270                }
271                _ => {} // ignore unknown fields
272            }
273        }
274    }
275
276}
277
278impl super::Entity for ProcessingJob {
279    type Id = Uuid;
280
281    fn entity_id(&self) -> &Self::Id {
282        &self.id
283    }
284
285    fn entity_type() -> &'static str {
286        "ProcessingJob"
287    }
288}
289
290impl backbone_core::PersistentEntity for ProcessingJob {
291    fn entity_id(&self) -> String {
292        self.id.to_string()
293    }
294    fn set_entity_id(&mut self, id: String) {
295        if let Ok(uuid) = uuid::Uuid::parse_str(&id) {
296            self.id = uuid;
297        }
298    }
299    fn created_at(&self) -> Option<chrono::DateTime<chrono::Utc>> {
300        self.metadata.created_at
301    }
302    fn set_created_at(&mut self, ts: chrono::DateTime<chrono::Utc>) {
303        self.metadata.created_at = Some(ts);
304    }
305    fn updated_at(&self) -> Option<chrono::DateTime<chrono::Utc>> {
306        self.metadata.updated_at
307    }
308    fn set_updated_at(&mut self, ts: chrono::DateTime<chrono::Utc>) {
309        self.metadata.updated_at = Some(ts);
310    }
311    fn deleted_at(&self) -> Option<chrono::DateTime<chrono::Utc>> {
312        self.metadata.deleted_at
313    }
314    fn set_deleted_at(&mut self, ts: Option<chrono::DateTime<chrono::Utc>>) {
315        self.metadata.deleted_at = ts;
316    }
317}
318
319impl backbone_orm::EntityRepoMeta for ProcessingJob {
320    fn column_types() -> std::collections::HashMap<String, String> {
321        let mut m = std::collections::HashMap::new();
322        m.insert("id".to_string(), "uuid".to_string());
323        m.insert("file_id".to_string(), "uuid".to_string());
324        m.insert("job_type".to_string(), "processing_job_type".to_string());
325        m.insert("status".to_string(), "job_status".to_string());
326        m.insert("started_at".to_string(), "timestamptz".to_string());
327        m.insert("completed_at".to_string(), "timestamptz".to_string());
328        m
329    }
330    fn search_fields() -> &'static [&'static str] {
331        &[]
332    }
333}
334
335/// Builder for ProcessingJob entity
336///
337/// Provides a fluent API for constructing ProcessingJob instances.
338/// System fields (id, metadata, timestamps) are auto-initialized.
339#[derive(Debug, Clone, Default)]
340pub struct ProcessingJobBuilder {
341    file_id: Option<Uuid>,
342    job_type: Option<ProcessingJobType>,
343    status: Option<JobStatus>,
344    priority: Option<i32>,
345    input_data: Option<serde_json::Value>,
346    result_data: Option<serde_json::Value>,
347    error_message: Option<String>,
348    started_at: Option<DateTime<Utc>>,
349    completed_at: Option<DateTime<Utc>>,
350    retry_count: Option<i32>,
351    max_retries: Option<i32>,
352}
353
354impl ProcessingJobBuilder {
355    /// Set the file_id field (required)
356    pub fn file_id(mut self, value: Uuid) -> Self {
357        self.file_id = Some(value);
358        self
359    }
360
361    /// Set the job_type field (required)
362    pub fn job_type(mut self, value: ProcessingJobType) -> Self {
363        self.job_type = Some(value);
364        self
365    }
366
367    /// Set the status field (default: `JobStatus::default()`)
368    pub fn status(mut self, value: JobStatus) -> Self {
369        self.status = Some(value);
370        self
371    }
372
373    /// Set the priority field (default: `0`)
374    pub fn priority(mut self, value: i32) -> Self {
375        self.priority = Some(value);
376        self
377    }
378
379    /// Set the input_data field (optional)
380    pub fn input_data(mut self, value: serde_json::Value) -> Self {
381        self.input_data = Some(value);
382        self
383    }
384
385    /// Set the result_data field (optional)
386    pub fn result_data(mut self, value: serde_json::Value) -> Self {
387        self.result_data = Some(value);
388        self
389    }
390
391    /// Set the error_message field (optional)
392    pub fn error_message(mut self, value: String) -> Self {
393        self.error_message = Some(value);
394        self
395    }
396
397    /// Set the started_at field (optional)
398    pub fn started_at(mut self, value: DateTime<Utc>) -> Self {
399        self.started_at = Some(value);
400        self
401    }
402
403    /// Set the completed_at field (optional)
404    pub fn completed_at(mut self, value: DateTime<Utc>) -> Self {
405        self.completed_at = Some(value);
406        self
407    }
408
409    /// Set the retry_count field (default: `0`)
410    pub fn retry_count(mut self, value: i32) -> Self {
411        self.retry_count = Some(value);
412        self
413    }
414
415    /// Set the max_retries field (default: `3`)
416    pub fn max_retries(mut self, value: i32) -> Self {
417        self.max_retries = Some(value);
418        self
419    }
420
421    /// Build the ProcessingJob entity
422    ///
423    /// Returns Err if any required field without a default is missing.
424    pub fn build(self) -> Result<ProcessingJob, String> {
425        let file_id = self.file_id.ok_or_else(|| "file_id is required".to_string())?;
426        let job_type = self.job_type.ok_or_else(|| "job_type is required".to_string())?;
427
428        Ok(ProcessingJob {
429            id: Uuid::new_v4(),
430            file_id,
431            job_type,
432            status: self.status.unwrap_or_default(),
433            priority: self.priority.unwrap_or(0),
434            input_data: self.input_data,
435            result_data: self.result_data,
436            error_message: self.error_message,
437            started_at: self.started_at,
438            completed_at: self.completed_at,
439            retry_count: self.retry_count.unwrap_or(0),
440            max_retries: self.max_retries.unwrap_or(3),
441            metadata: AuditMetadata::default(),
442        })
443    }
444}
445
446// This file's extension (hand-written; ADR-0031).
447#[path = "processing_job.ext.rs"]
448mod processing_job_ext;
449pub use processing_job_ext::*;
backbone_bucket/domain/entity/processing_job.rs

backbone_bucket/domain/entity/
processing_job.rs
