chore: Refactor async command handling (#83)

- Rewrite the scheduler to avoid specific policies
- Implements optimistic locking to make sure we don't lose data
- Rewrite app and target cleanup to delete them as soon as everything is properly cleaned up

cmd/config/configuration.go

@@ -30,7 +30,7 @@ var (
 )
 
 const (
-	databaseConnectionString      = "seelf.db?_journal=WAL&_timeout=5000&_foreign_keys=yes&_txlock=immediate"
+	databaseConnectionString      = "seelf.db?_journal=WAL&_timeout=5000&_foreign_keys=yes&_txlock=immediate&_synchronous=NORMAL"
 	defaultConfigFilename         = "conf.yml"
 	defaultPort                   = 8080
 	defaultHost                   = ""

cmd/serve/front/src/lib/localization/en.ts

@@ -111,14 +111,11 @@ You may reconsider and try to make the target reachable before deleting it.`,
 	'jobs.dates': 'Queued at / Not before',
 	'jobs.error': 'error',
 	'jobs.payload': 'payload',
-	'jobs.policy': 'policy',
-	'jobs.policy.preserve_group_order': 'Preserve group order on error',
-	'jobs.policy.wait_others_resource_id': 'Wait for others jobs to finish on resource',
-	'jobs.policy.cancellable': 'Cancellable',
-	'jobs.policy.mergeable': 'Mergeable',
 	'jobs.group': 'group',
-	'jobs.cancel': 'Cancel job',
-	'jobs.cancel.confirm': 'Are you sure you want to cancel this job?',
+	'jobs.dismiss': 'Dismiss job',
+	'jobs.dismiss.confirm': 'Are you sure you want to dismiss this job?',
+	'jobs.retry': 'Retry job',
+	'jobs.retry.confirm': 'Are you sure you want to retry this job?',
 	// Jobs names
 	'deployment.command.cleanup_app': 'Application cleanup',
 	'deployment.command.cleanup_target': 'Target cleanup',

cmd/serve/front/src/lib/localization/fr.ts

@@ -115,14 +115,11 @@ Vous devriez probablement essayer de rendre la cible accessible avant de la supp
 		'jobs.dates': 'Créée le / Pas avant',
 		'jobs.error': 'erreur',
 		'jobs.payload': 'charge utile',
-		'jobs.policy': 'politique',
-		'jobs.policy.preserve_group_order': "Préserve l'ordre au sein du groupe en cas d'erreur",
-		'jobs.policy.wait_others_resource_id': "Attend l'achèvement des tâches sur cette ressource",
-		'jobs.policy.cancellable': 'Annulable',
-		'jobs.policy.mergeable': 'Fusionnable',
 		'jobs.group': 'groupe',
-		'jobs.cancel': 'Annuler la tâche',
-		'jobs.cancel.confirm': 'Voulez-vous vraiment annuler la tâche ?',
+		'jobs.dismiss': 'Ignorer la tâche',
+		'jobs.dismiss.confirm': 'Voulez-vous vraiment ignorer la tâche ?',
+		'jobs.retry': 'Relancer la tâche',
+		'jobs.retry.confirm': 'Voulez-vous vraiment relancer la tâche ?',
 		// Jobs names
 		'deployment.command.cleanup_app': "Nettoyage de l'application",
 		'deployment.command.cleanup_target': 'Nettoyage de la cible',

cmd/serve/front/src/lib/resources/jobs.ts

@@ -4,26 +4,18 @@ import type { Paginated } from '$lib/pagination';
 
 export type Job = {
 	id: string;
-	resource_id: string;
 	group: string;
 	message_name: string;
 	message_data: string;
 	queued_at: string;
 	not_before: string;
 	error_code?: string;
-	policy: number;
 	retrieved: boolean;
 };
 
-export enum JobPolicy {
-	PreserveOrder = 1,
-	WaitForOthersResourceID = 2,
-	Cancellable = 4,
-	Mergeable = 8
-}
-
 export interface JobsService {
-	delete(id: string): Promise<void>;
+	dismiss(id: string): Promise<void>;
+	retry(id: string): Promise<void>;
 	fetchAll(page: number, options?: FetchOptions): Promise<Paginated<Job>>;
 	queryAll(page: number): QueryResult<Paginated<Job>>;
 }
@@ -35,12 +27,18 @@ type Options = {
 export class RemoteJobsService implements JobsService {
 	constructor(private readonly _fetcher: FetchService, private readonly _options: Options) {}
 
-	delete(id: string): Promise<void> {
+	dismiss(id: string): Promise<void> {
 		return this._fetcher.delete(`/api/v1/jobs/${id}`, {
 			invalidate: ['/api/v1/jobs']
 		});
 	}
 
+	retry(id: string): Promise<void> {
+		return this._fetcher.put(`/api/v1/jobs/${id}`, {
+			invalidate: ['/api/v1/jobs']
+		});
+	}
+
 	queryAll(page: number): QueryResult<Paginated<Job>> {
 		return this._fetcher.query('/api/v1/jobs', {
 			refreshInterval: this._options.pollingInterval,

cmd/serve/front/src/routes/(main)/jobs/+page.svelte

@@ -5,42 +5,16 @@
 	import Display from '$components/display.svelte';
 	import Pagination from '$components/pagination.svelte';
 	import Stack from '$components/stack.svelte';
-	import CancelButton from './cancel-button.svelte';
-	import service, { JobPolicy } from '$lib/resources/jobs';
+	import service from '$lib/resources/jobs';
 	import l, { type AppTranslationsString } from '$lib/localization';
+	import JobActionButton from './job-action-button.svelte';
 
 	let page = 1;
 
 	function translateMessageName(messageName: string) {
 		return l.translate(messageName as AppTranslationsString);
 	}
 
-	function translatePolicy(policy: number) {
-		if (!policy) {
-			return '-';
-		}
-
-		const policies: string[] = [];
-
-		if ((policy & JobPolicy.PreserveOrder) !== 0) {
-			policies.push(l.translate('jobs.policy.preserve_group_order'));
-		}
-
-		if ((policy & JobPolicy.WaitForOthersResourceID) !== 0) {
-			policies.push(l.translate('jobs.policy.wait_others_resource_id'));
-		}
-
-		if ((policy & JobPolicy.Cancellable) !== 0) {
-			policies.push(l.translate('jobs.policy.cancellable'));
-		}
-
-		if ((policy & JobPolicy.Mergeable) !== 0) {
-			policies.push(l.translate('jobs.policy.mergeable'));
-		}
-
-		return policies.join(', ');
-	}
-
 	$: ({ data } = service.queryAll(page));
 </script>
 
@@ -74,7 +48,6 @@
 		{:else if value === 'resource'}
 			<!-- @ts-ignore -->
 			<div>{translateMessageName(item.message_name)}</div>
-			<div class="meta">{item.resource_id}</div>
 		{/if}
 	</svelte:fragment>
 
@@ -87,15 +60,15 @@
 				<Display label="jobs.payload">
 					<code>{item.message_data}</code>
 				</Display>
-				<Display label="jobs.policy">
-					{translatePolicy(item.policy)}
-				</Display>
 				<Display label="jobs.error">
 					{item.error_code ?? '-'}
 				</Display>
 			</dl>
-			{#if (item.policy & JobPolicy.Cancellable) !== 0}
-				<CancelButton id={item.id} {page} />
+			{#if item.error_code}
+				<Stack justify="flex-end">
+					<JobActionButton id={item.id} mode="dismiss" {page} />
+					<JobActionButton id={item.id} mode="retry" {page} />
+				</Stack>
 			{/if}
 		</Stack>
 	</svelte:fragment>

cmd/serve/front/src/routes/(main)/jobs/cancel-button.svelte → cmd/serve/front/src/routes/(main)/jobs/job-action-button.svelte

@@ -1,26 +1,32 @@
 <script lang="ts">
 	import Button from '$components/button.svelte';
+	import Stack from '$components/stack.svelte';
 	import { submitter } from '$lib/form';
 	import service from '$lib/resources/jobs';
-	import Stack from '$components/stack.svelte';
 	import l from '$lib/localization';
 
 	export let id: string;
-	export let page: number;
+	export let page: number; // Page number, used to refresh the jobs list
+	export let mode: 'dismiss' | 'retry';
 
 	const { submit, loading } = submitter(
 		() =>
-			service.delete(id).then(() =>
+			service[mode](id).then(() =>
 				service.fetchAll(page, {
 					cache: 'no-store' // Force the refresh of jobs list
 				})
 			),
 		{
-			confirmation: l.translate('jobs.cancel.confirm')
+			confirmation: l.translate(`jobs.${mode}.confirm`)
 		}
 	);
 </script>
 
 <Stack direction="row" justify="flex-end">
-	<Button variant="danger" text="jobs.cancel" on:click={submit} loading={$loading} />
+	<Button
+		variant={mode == 'dismiss' ? 'danger' : 'outlined'}
+		text={`jobs.${mode}`}
+		on:click={submit}
+		loading={$loading}
+	/>
 </Stack>

cmd/serve/jobs.go

@@ -2,6 +2,9 @@ package serve
 
 import (
 	"github.com/YuukanOO/seelf/pkg/bus"
+	"github.com/YuukanOO/seelf/pkg/bus/embedded/dismiss_job"
+	"github.com/YuukanOO/seelf/pkg/bus/embedded/get_jobs"
+	"github.com/YuukanOO/seelf/pkg/bus/embedded/retry_job"
 	"github.com/YuukanOO/seelf/pkg/http"
 	"github.com/gin-gonic/gin"
 )
@@ -12,13 +15,13 @@ type listJobsFilters struct {
 
 func (s *server) listJobsHandler() gin.HandlerFunc {
 	return http.Bind(s, func(ctx *gin.Context, request listJobsFilters) error {
-		var filters bus.GetJobsFilters
+		var filters get_jobs.Query
 
 		if request.Page != 0 {
 			filters.Page.Set(request.Page)
 		}
 
-		jobs, err := s.scheduledJobsStore.GetAllJobs(ctx.Request.Context(), filters)
+		jobs, err := bus.Send(s.bus, ctx.Request.Context(), filters)
 
 		if err != nil {
 			return err
@@ -28,11 +31,23 @@ func (s *server) listJobsHandler() gin.HandlerFunc {
 	})
 }
 
-func (s *server) deleteJobsHandler() gin.HandlerFunc {
+func (s *server) dismissJobHandler() gin.HandlerFunc {
 	return http.Send(s, func(ctx *gin.Context) error {
-		err := s.scheduledJobsStore.Delete(ctx.Request.Context(), ctx.Param("id"))
+		if _, err := bus.Send(s.bus, ctx.Request.Context(), dismiss_job.Command{
+			ID: ctx.Param("id"),
+		}); err != nil {
+			return err
+		}
 
-		if err != nil {
+		return http.NoContent(ctx)
+	})
+}
+
+func (s *server) retryJobHandler() gin.HandlerFunc {
+	return http.Send(s, func(ctx *gin.Context) error {
+		if _, err := bus.Send(s.bus, ctx.Request.Context(), retry_job.Command{
+			ID: ctx.Param("id"),
+		}); err != nil {
 			return err
 		}
 

cmd/serve/middlewares.go

@@ -7,7 +7,9 @@ import (
 	"strings"
 	"time"
 
+	"github.com/YuukanOO/seelf/internal/auth/app/api_login"
 	"github.com/YuukanOO/seelf/internal/auth/domain"
+	"github.com/YuukanOO/seelf/pkg/bus"
 	httputils "github.com/YuukanOO/seelf/pkg/http"
 	"github.com/gin-contrib/sessions"
 	"github.com/gin-gonic/gin"
@@ -25,8 +27,8 @@ var errUnauthorized = errors.New("unauthorized")
 func (s *server) authenticate(withApiAccess bool) gin.HandlerFunc {
 	return func(ctx *gin.Context) {
 		// First, try to find a user id in the encrypted session cookie
-		sess := sessions.Default(ctx)
-		uid, ok := sess.Get(userSessionKey).(string)
+		userSession := sessions.Default(ctx)
+		uid, ok := userSession.Get(userSessionKey).(string)
 		failed := !ok || uid == ""
 
 		// If it failed and api access is not allowed, return early
@@ -50,15 +52,17 @@ func (s *server) authenticate(withApiAccess bool) gin.HandlerFunc {
 			return
 		}
 
-		id, err := s.usersReader.GetIDFromAPIKey(ctx.Request.Context(), domain.APIKey(authHeader[apiAuthPrefixLength:]))
+		id, err := bus.Send(s.bus, ctx.Request.Context(), api_login.Query{
+			Key: authHeader[apiAuthPrefixLength:],
+		})
 
 		if err != nil {
 			_ = ctx.AbortWithError(http.StatusUnauthorized, errUnauthorized)
 			return
 		}
 
-		// Attach the user id to the context passed down in every usecases.
-		ctx.Request = ctx.Request.WithContext(domain.WithUserID(ctx.Request.Context(), id))
+		// Attach the user id to the context passed down in every use cases.
+		ctx.Request = ctx.Request.WithContext(domain.WithUserID(ctx.Request.Context(), domain.UserID(id)))
 
 		ctx.Next()
 	}

cmd/serve/server.go

@@ -13,7 +13,6 @@ import (
 	"time"
 
 	"github.com/YuukanOO/seelf/cmd/startup"
-	"github.com/YuukanOO/seelf/internal/auth/domain"
 	"github.com/YuukanOO/seelf/pkg/bus"
 	"github.com/YuukanOO/seelf/pkg/log"
 	"github.com/gin-contrib/sessions"
@@ -39,25 +38,21 @@ type (
 	}
 
 	server struct {
-		options            ServerOptions
-		router             *gin.Engine
-		bus                bus.Dispatcher
-		logger             log.Logger
-		usersReader        domain.UsersReader
-		scheduledJobsStore bus.ScheduledJobsStore
+		options ServerOptions
+		router  *gin.Engine
+		bus     bus.Dispatcher
+		logger  log.Logger
 	}
 )
 
 func newHttpServer(options ServerOptions, root startup.ServerRoot) *server {
 	gin.SetMode(gin.ReleaseMode)
 
 	s := &server{
-		options:            options,
-		router:             gin.New(),
-		usersReader:        root.UsersReader(),
-		scheduledJobsStore: root.ScheduledJobsStore(),
-		bus:                root.Bus(),
-		logger:             root.Logger(),
+		options: options,
+		router:  gin.New(),
+		bus:     root.Bus(),
+		logger:  root.Logger(),
 	}
 
 	_ = s.router.SetTrustedProxies(nil)
@@ -87,7 +82,8 @@ func newHttpServer(options ServerOptions, root startup.ServerRoot) *server {
 	v1secured := v1.Group("", s.authenticate(false))
 	v1secured.DELETE("/session", s.deleteSessionHandler())
 	v1secured.GET("/jobs", s.listJobsHandler())
-	v1secured.DELETE("/jobs/:id", s.deleteJobsHandler())
+	v1secured.DELETE("/jobs/:id", s.dismissJobHandler())
+	v1secured.PUT("/jobs/:id", s.retryJobHandler())
 	v1secured.GET("/profile", s.getProfileHandler())
 	v1secured.PATCH("/profile", s.updateProfileHandler())
 	v1secured.PUT("/profile/key", s.refreshProfileKeyHandler())