From b107c71c6fb8feeb1dcfed4b9d50b0db78fe2f11 Mon Sep 17 00:00:00 2001
From: "D. Berge" <dberge@aaltronav.eu>
Date: Sun, 3 Oct 2021 21:23:39 +0200
Subject: [PATCH] Add option to get only summary info for a sequence.

Which is faster when we don't need the shotpoint data.
---
 lib/www/server/lib/db/sequence/get.js | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/lib/www/server/lib/db/sequence/get.js b/lib/www/server/lib/db/sequence/get.js
index eb18965..54e7016 100644
--- a/lib/www/server/lib/db/sequence/get.js
+++ b/lib/www/server/lib/db/sequence/get.js
@@ -22,8 +22,27 @@ function thinout (key, obj) {
 	return value;
 }
 
+async function getSummary (projectId, sequence, opts = {}) {
+	const client = await setSurvey(projectId);
+
+	const text = `
+		SELECT *
+		FROM sequences_summary
+		WHERE sequence = $1;
+	`;
+
+	const res = await client.query(text, [sequence]);
+	client.release();
+
+	return res.rows[0];
+}
+
 
 async function get (projectId, sequence, opts = {}) {
+	if (opts.summary) {
+		return await getSummary(projectId, sequence, opts);
+	}
+
 	const client = await setSurvey(projectId);
 
 	const sortFields = [
@@ -33,11 +52,11 @@ async function get (projectId, sequence, opts = {}) {
 	const sortDir = opts.sortDesc == "false" ? "ASC" : "DESC";
 	const offset = Math.abs((opts.page-1)*opts.itemsPerPage) || 0;
 	const limit = Math.abs(Number(opts.itemsPerPage)) || null;
-	
+
 	const restriction = sequence != 0
 		? "sequence = $3"
 		: "TRUE OR $3";
-	
+
 	const text = `
 		SELECT
 			sequence, sailline, line, point, tstamp,
@@ -58,7 +77,7 @@ async function get (projectId, sequence, opts = {}) {
 	const values = [offset, limit, sequence, opts.path || "$"];
 	const res = await client.query(text, values);
 	client.release();
-	
+
 	if (opts.project) {
 		const tokens = opts.project.split(/\s*[,;:\s]\s*/).filter(e => e.length);
 		const project = tokens.map(i => i.replace(/^([^.]+)\..*$/, "$1"));