feat: add base database management

migrations/0001_jobs.sql

@@ -0,0 +1,20 @@
+create table jobs
+(
+    id          integer
+        constraint jobs_pk
+            primary key autoincrement,
+    task_id     integer                        not null
+        constraint jobs_tasks_id_fk
+            references tasks,
+    status_id   integer                        not null
+        constraint jobs_statuses_id_fk
+            references statuses,
+    output      TEXT,
+    started_at  TEXT default CURRENT_TIMESTAMP not null,
+    finished_at TEXT,
+    "order"     integer                        not null
+);
+
+create index jobs_task_id_order_index
+    on jobs (task_id asc, "order" desc);
+

migrations/0002_statuses.sql

@@ -0,0 +1,13 @@
+create table statuses
+(
+    id   integer
+        constraint task_statuses_pk
+            primary key autoincrement,
+    name TEXT not null
+);
+
+insert into statuses (id, name)
+values  (1, 'Pending'),
+        (2, 'In progress'),
+        (3, 'Completed'),
+        (4, 'Failed');

migrations/0003_tasks.sql

@@ -0,0 +1,19 @@
+create table tasks
+(
+    id          integer                        not null
+        constraint tasks_pk
+            primary key autoincrement,
+    payload_key ANY                            not null
+        constraint tasks_payload_key
+            unique,
+    payload     TEXT                           not null,
+    status_id   integer                        not null
+        constraint tasks_task_statuses_id_fk
+            references statuses,
+    created_at  TEXT default CURRENT_TIMESTAMP not null,
+    updated_at  TEXT
+);
+
+create unique index tasks_payload_key_uindex
+    on tasks (payload_key);
+