feat: add bell notification system for task assignment

internal/db/query/notification.sql

@@ -4,8 +4,17 @@ SELECT * FROM notification_notified AS nn
   LEFT JOIN user_account ON user_account.user_id = n.caused_by
   WHERE nn.user_id = $1;
 
+-- name: GetNotifiedByID :one
+SELECT * FROM notification_notified as nn
+  INNER JOIN notification AS n ON n.notification_id = nn.notification_id
+  LEFT JOIN user_account ON user_account.user_id = n.caused_by
+  WHERE notified_id = $1;
+
+-- name: HasUnreadNotification :one
+SELECT EXISTS (SELECT 1 FROM notification_notified WHERE read = false AND user_id = $1);
+
 -- name: MarkNotificationAsRead :exec
-UPDATE notification_notified SET read = true, read_at = $2 WHERE user_id = $1;
+UPDATE notification_notified SET read = $3, read_at = $2 WHERE user_id = $1 AND notified_id = $4;
 
 -- name: CreateNotification :one
 INSERT INTO notification (caused_by, data, action_type, created_on)
@@ -13,3 +22,22 @@ INSERT INTO notification (caused_by, data, action_type, created_on)
 
 -- name: CreateNotificationNotifed :one
 INSERT INTO notification_notified (notification_id, user_id) VALUES ($1, $2) RETURNING *;
+
+-- name: GetNotificationsForUserIDPaged :many
+SELECT * FROM notification_notified AS nn
+  INNER JOIN notification AS n ON n.notification_id = nn.notification_id
+  LEFT JOIN user_account ON user_account.user_id = n.caused_by
+  WHERE nn.user_id = @user_id::uuid
+  AND (@enable_unread::boolean = false OR nn.read = false)
+  AND (@enable_action_type::boolean = false OR n.action_type = ANY(@action_type::text[]))
+  ORDER BY n.created_on DESC
+  LIMIT @limit_rows::int;
+
+-- name: GetNotificationsForUserIDCursor :many
+SELECT * FROM notification_notified AS nn
+  INNER JOIN notification AS n ON n.notification_id = nn.notification_id
+  LEFT JOIN user_account ON user_account.user_id = n.caused_by
+  WHERE (n.created_on, n.notification_id) < (@created_on::timestamptz, @notification_id::uuid)
+  AND nn.user_id = @user_id::uuid
+  ORDER BY n.created_on DESC
+  LIMIT @limit_rows::int;

internal/db/query/task.sql

@@ -1,3 +1,12 @@
+-- name: GetTaskWatcher :one
+SELECT * FROM task_watcher WHERE user_id = $1 AND task_id = $2;
+
+-- name: CreateTaskWatcher :one
+INSERT INTO task_watcher (user_id, task_id, watched_at) VALUES ($1, $2, $3) RETURNING *;
+
+-- name: DeleteTaskWatcher :exec
+DELETE FROM task_watcher WHERE user_id = $1 AND task_id = $2;
+
 -- name: CreateTask :one
 INSERT INTO task (task_group_id, created_at, name, position)
   VALUES($1, $2, $3, $4) RETURNING *;
@@ -44,6 +53,12 @@ SELECT project_id FROM task
   INNER JOIN task_group ON task_group.task_group_id = task.task_group_id
   WHERE task_id = $1;
 
+-- name: GetProjectInfoForTask :one
+SELECT project.project_id, project.name FROM task
+  INNER JOIN task_group ON task_group.task_group_id = task.task_group_id
+  INNER JOIN project ON task_group.project_id = project.project_id
+  WHERE task_id = $1;
+
 -- name: CreateTaskComment :one
 INSERT INTO task_comment (task_id, message, created_at, created_by)
   VALUES ($1, $2, $3, $4) RETURNING *;