Add min wait support to close on passing (#555)

Signed-off-by: Daniel Castaño Sánchez <danielcastanosanchez@icloud.com>

docs/config/.gitvote.yml

@@ -136,6 +136,23 @@ profiles:
     #
     close_on_passing: false
 
+    # Close on passing minimum wait
+    # 
+    # When the close on passing feature is activated, voting will conclude once
+    # the pass threshold is met. However, there may be instances where it is
+    # preferable to implement a minimum wait time, even if the vote would
+    # already pass. This allows participants sufficient opportunity to engage
+    # and reflect before the vote is automatically finalized.
+    #
+    # Units supported:
+    #
+    #   - day / days
+    #   - week / weeks 
+    #
+    # close_on_passing_min_wait: "1 week"
+    #
+    close_on_passing_min_wait: null
+
     # Announcements
     #
     # GitVote can announce the results of a vote when it is closed on GitHub

src/cfg.rs

@@ -84,6 +84,8 @@ pub(crate) struct CfgProfile {
     pub periodic_status_check: Option<String>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub close_on_passing: Option<bool>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub close_on_passing_min_wait: Option<String>,
 }
 
 impl CfgProfile {

src/db.rs

@@ -190,6 +190,12 @@ impl DB for PgDB {
                 where closed = false
                 and cfg ? 'close_on_passing'
                 and (cfg->>'close_on_passing')::boolean = true
+                and
+                    case
+                        when cfg ? 'close_on_passing_min_wait' and string_to_interval(cfg->>'close_on_passing_min_wait') is not null then
+                            current_timestamp > created_at + (cfg->>'close_on_passing_min_wait')::interval
+                        else true
+                    end
                 ",
                 &[],
             )