From bec22dd0b5b374f5637932134d5fb6d59af1327b Mon Sep 17 00:00:00 2001
From: Pavel <pashamullin202@gmail.com>
Date: Mon, 25 Mar 2024 11:30:06 +0300
Subject: [PATCH] add new AllServiceStatistics query

---
 dal/db_query/queries.sql            | 23 ++++++++++++++++++++++-
 repository/statistics/statistics.go | 11 +++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/dal/db_query/queries.sql b/dal/db_query/queries.sql
index 08b9f90..d7ca343 100644
--- a/dal/db_query/queries.sql
+++ b/dal/db_query/queries.sql
@@ -610,4 +610,25 @@ WHERE
     question.quiz_id = $1 AND deleted = false;
 
 -- name: GetQidOwner :one
-SELECT accountid FROM quiz where qid=$1;
\ No newline at end of file
+SELECT accountid FROM quiz where qid=$1;
+
+-- name: AllServiceStatistics :one
+WITH Registrations AS (
+    SELECT COUNT(*) AS registration_count
+    FROM account
+    WHERE created_at >= to_timestamp($1) AND created_at <= to_timestamp($2)
+),
+     Quizes AS (
+         SELECT COUNT(*) AS quiz_count
+         FROM quiz
+         WHERE deleted = false AND created_at >= to_timestamp($1) AND created_at <= to_timestamp($2)
+     ),
+     Results AS (
+         SELECT COUNT(*) AS result_count
+         FROM answer
+         WHERE result = true AND created_at >= to_timestamp($1) AND created_at <= to_timestamp($2)
+     )
+SELECT
+    (SELECT registration_count FROM Registrations) AS registrations,
+    (SELECT quiz_count FROM Quizes) AS quizes,
+    (SELECT result_count FROM Results) AS results;
\ No newline at end of file
diff --git a/repository/statistics/statistics.go b/repository/statistics/statistics.go
index 77ad210..e3bbad7 100644
--- a/repository/statistics/statistics.go
+++ b/repository/statistics/statistics.go
@@ -145,3 +145,14 @@ func (r *StatisticsRepository) GetQuestionsStatistics(ctx context.Context, req D
 
 	return resp, nil
 }
+
+type StatisticResp struct {
+	// от from до to
+	Registrations uint64 // количество зарегестрированных аккаунтов
+	Quizes        uint64 // количество созданных не удаленных квизов
+	Results       uint64 // количество ответов с result = true
+}
+
+func (r *StatisticsRepository) AllServiceStatistics(ctx context.Context, from, to uint64) (StatisticResp, error) {
+	allSvcStats, err := r.queries.AllServiceStatistics
+}