Integrate unfinished server-rs refactor worklists
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250
server-rs/crates/module-ai/src/application/service.rs
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250
server-rs/crates/module-ai/src/application/service.rs
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use shared_kernel::normalize_required_string;
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use crate::commands::validate_task_create_input;
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use crate::{
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AiResultReferenceKind, AiResultReferenceSnapshot, AiStageCompletionInput, AiTaskCreateInput,
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AiTaskFieldError, AiTaskServiceError, AiTaskSnapshot, AiTaskStageKind, AiTaskStageSnapshot,
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AiTaskStageStatus, AiTaskStatus, AiTextChunkSnapshot, INITIAL_AI_TASK_VERSION,
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generate_ai_result_ref_id, generate_ai_text_chunk_id, normalize_optional_text,
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normalize_string_list,
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};
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use super::{InMemoryAiTaskStore, ensure_task_is_not_terminal};
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#[derive(Clone, Debug)]
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pub struct AiTaskService {
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store: InMemoryAiTaskStore,
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}
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impl AiTaskService {
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pub fn new(store: InMemoryAiTaskStore) -> Self {
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Self { store }
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}
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pub fn create_task(
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&self,
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input: AiTaskCreateInput,
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) -> Result<AiTaskSnapshot, AiTaskServiceError> {
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validate_task_create_input(&input).map_err(AiTaskServiceError::Field)?;
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let snapshot = AiTaskSnapshot {
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task_id: input.task_id.clone(),
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task_kind: input.task_kind,
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owner_user_id: normalize_required_string(input.owner_user_id).unwrap_or_default(),
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request_label: normalize_required_string(input.request_label).unwrap_or_default(),
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source_module: normalize_required_string(input.source_module).unwrap_or_default(),
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source_entity_id: normalize_optional_text(input.source_entity_id),
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request_payload_json: normalize_optional_text(input.request_payload_json),
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status: AiTaskStatus::Pending,
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failure_message: None,
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stages: input
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.stages
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.into_iter()
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.map(|stage| AiTaskStageSnapshot {
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stage_kind: stage.stage_kind,
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label: normalize_required_string(stage.label).unwrap_or_default(),
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detail: normalize_required_string(stage.detail).unwrap_or_default(),
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order: stage.order,
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status: AiTaskStageStatus::Pending,
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text_output: None,
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structured_payload_json: None,
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warning_messages: Vec::new(),
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started_at_micros: None,
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completed_at_micros: None,
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})
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.collect(),
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result_references: Vec::new(),
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latest_text_output: None,
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latest_structured_payload_json: None,
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version: INITIAL_AI_TASK_VERSION,
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created_at_micros: input.created_at_micros,
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started_at_micros: None,
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completed_at_micros: None,
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updated_at_micros: input.created_at_micros,
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};
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self.store.insert_task(snapshot)
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}
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pub fn start_task(
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&self,
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task_id: &str,
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started_at_micros: i64,
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) -> Result<AiTaskSnapshot, AiTaskServiceError> {
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self.store.update_task(task_id, |task| {
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ensure_task_is_not_terminal(task.status)?;
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task.status = AiTaskStatus::Running;
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task.started_at_micros.get_or_insert(started_at_micros);
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task.updated_at_micros = started_at_micros;
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task.version += 1;
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Ok(())
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})
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}
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pub fn start_stage(
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&self,
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task_id: &str,
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stage_kind: AiTaskStageKind,
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started_at_micros: i64,
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) -> Result<AiTaskSnapshot, AiTaskServiceError> {
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self.store.update_task(task_id, |task| {
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ensure_task_is_not_terminal(task.status)?;
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task.status = AiTaskStatus::Running;
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task.started_at_micros.get_or_insert(started_at_micros);
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let stage = task
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.stages
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.iter_mut()
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.find(|stage| stage.stage_kind == stage_kind)
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.ok_or(AiTaskServiceError::StageNotFound)?;
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stage.status = AiTaskStageStatus::Running;
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stage.started_at_micros.get_or_insert(started_at_micros);
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task.updated_at_micros = started_at_micros;
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task.version += 1;
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Ok(())
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})
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}
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pub fn append_text_chunk(
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&self,
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task_id: &str,
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stage_kind: AiTaskStageKind,
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sequence: u32,
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delta_text: String,
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created_at_micros: i64,
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) -> Result<(AiTaskSnapshot, AiTextChunkSnapshot), AiTaskServiceError> {
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if delta_text.trim().is_empty() {
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return Err(AiTaskServiceError::Field(
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AiTaskFieldError::MissingChunkText,
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));
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}
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if sequence == 0 {
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return Err(AiTaskServiceError::Field(AiTaskFieldError::InvalidSequence));
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}
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let chunk = AiTextChunkSnapshot {
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chunk_id: generate_ai_text_chunk_id(created_at_micros, sequence),
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task_id: normalize_required_string(task_id).unwrap_or_default(),
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stage_kind,
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sequence,
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delta_text: normalize_required_string(delta_text).unwrap_or_default(),
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created_at_micros,
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};
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let task = self.store.append_text_chunk(chunk.clone())?;
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Ok((task, chunk))
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}
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pub fn complete_stage(
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&self,
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input: AiStageCompletionInput,
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) -> Result<AiTaskSnapshot, AiTaskServiceError> {
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self.store.update_task(&input.task_id, |task| {
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ensure_task_is_not_terminal(task.status)?;
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let stage = task
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.stages
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.iter_mut()
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.find(|stage| stage.stage_kind == input.stage_kind)
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.ok_or(AiTaskServiceError::StageNotFound)?;
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stage.status = AiTaskStageStatus::Completed;
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stage.completed_at_micros = Some(input.completed_at_micros);
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stage.text_output = normalize_optional_text(input.text_output.clone());
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stage.structured_payload_json =
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normalize_optional_text(input.structured_payload_json.clone());
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stage.warning_messages = normalize_string_list(input.warning_messages.clone());
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task.latest_text_output = stage.text_output.clone();
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task.latest_structured_payload_json = stage.structured_payload_json.clone();
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task.updated_at_micros = input.completed_at_micros;
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task.version += 1;
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Ok(())
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})
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}
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pub fn attach_result_reference(
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&self,
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task_id: &str,
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reference_kind: AiResultReferenceKind,
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reference_id: String,
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label: Option<String>,
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created_at_micros: i64,
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) -> Result<AiTaskSnapshot, AiTaskServiceError> {
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let Some(reference_id) = normalize_required_string(reference_id) else {
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return Err(AiTaskServiceError::Field(
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AiTaskFieldError::MissingReferenceId,
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));
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};
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self.store.update_task(task_id, |task| {
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ensure_task_is_not_terminal(task.status)?;
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task.result_references.push(AiResultReferenceSnapshot {
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result_ref_id: generate_ai_result_ref_id(created_at_micros),
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task_id: task.task_id.clone(),
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reference_kind,
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reference_id: reference_id.clone(),
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label: normalize_optional_text(label.clone()),
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created_at_micros,
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});
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task.updated_at_micros = created_at_micros;
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task.version += 1;
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Ok(())
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})
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}
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pub fn complete_task(
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&self,
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task_id: &str,
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completed_at_micros: i64,
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) -> Result<AiTaskSnapshot, AiTaskServiceError> {
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self.store.update_task(task_id, |task| {
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ensure_task_is_not_terminal(task.status)?;
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task.status = AiTaskStatus::Completed;
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task.completed_at_micros = Some(completed_at_micros);
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task.updated_at_micros = completed_at_micros;
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task.version += 1;
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Ok(())
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})
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}
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pub fn fail_task(
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&self,
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task_id: &str,
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failure_message: String,
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completed_at_micros: i64,
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) -> Result<AiTaskSnapshot, AiTaskServiceError> {
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let Some(failure_message) = normalize_required_string(failure_message) else {
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return Err(AiTaskServiceError::Field(
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AiTaskFieldError::MissingFailureMessage,
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));
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};
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self.store.update_task(task_id, |task| {
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ensure_task_is_not_terminal(task.status)?;
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task.status = AiTaskStatus::Failed;
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task.failure_message = Some(failure_message.clone());
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task.completed_at_micros = Some(completed_at_micros);
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task.updated_at_micros = completed_at_micros;
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task.version += 1;
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Ok(())
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})
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}
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pub fn cancel_task(
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&self,
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task_id: &str,
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completed_at_micros: i64,
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) -> Result<AiTaskSnapshot, AiTaskServiceError> {
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self.store.update_task(task_id, |task| {
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ensure_task_is_not_terminal(task.status)?;
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task.status = AiTaskStatus::Cancelled;
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task.completed_at_micros = Some(completed_at_micros);
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task.updated_at_micros = completed_at_micros;
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task.version += 1;
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Ok(())
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})
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}
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pub fn get_task(&self, task_id: &str) -> Result<AiTaskSnapshot, AiTaskServiceError> {
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self.store.get_task(task_id)
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}
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}
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