From 5ec2e11de32da7cf7459cf7cbd4fadbe4b398fcd Mon Sep 17 00:00:00 2001
From: RumovZ <gp5glkw78@relay.firefox.com>
Date: Sun, 18 Apr 2021 12:14:18 +0200
Subject: [PATCH] Add search keyword `introduced`

Filters for cards that had their first review within the last x days.
---
 rslib/src/search/parser.rs    |  7 +++++++
 rslib/src/search/sqlwriter.rs | 14 ++++++++++++++
 rslib/src/search/writer.rs    |  1 +
 3 files changed, 22 insertions(+)

diff --git a/rslib/src/search/parser.rs b/rslib/src/search/parser.rs
index 9317c450d..fb5d08619 100644
--- a/rslib/src/search/parser.rs
+++ b/rslib/src/search/parser.rs
@@ -73,6 +73,7 @@ pub enum SearchNode {
     CardTemplate(TemplateKind),
     Deck(String),
     DeckId(DeckId),
+    IntroducedInDays(u32),
     NotetypeId(NotetypeId),
     Notetype(String),
     Rated {
@@ -333,6 +334,7 @@ fn search_node_for_text_with_argument<'a>(
         "prop" => parse_prop(val)?,
         "added" => parse_added(val)?,
         "edited" => parse_edited(val)?,
+        "introduced" => parse_introduced(val)?,
         "rated" => parse_rated(val)?,
         "is" => parse_state(val)?,
         "did" => parse_did(val)?,
@@ -527,6 +529,11 @@ fn parse_edited(s: &str) -> ParseResult<SearchNode> {
     parse_u32(s, "edited:").map(|n| SearchNode::EditedInDays(n.max(1)))
 }
 
+/// eg introduced:1
+fn parse_introduced(s: &str) -> ParseResult<SearchNode> {
+    parse_u32(s, "introduced:").map(|n| SearchNode::IntroducedInDays(n.max(1)))
+}
+
 /// eg rated:3 or rated:10:2
 /// second arg must be between 1-4
 fn parse_rated(s: &str) -> ParseResult<SearchNode> {
diff --git a/rslib/src/search/sqlwriter.rs b/rslib/src/search/sqlwriter.rs
index 793b504aa..f3dee8377 100644
--- a/rslib/src/search/sqlwriter.rs
+++ b/rslib/src/search/sqlwriter.rs
@@ -128,6 +128,7 @@ impl SqlWriter<'_> {
             // other
             SearchNode::AddedInDays(days) => self.write_added(*days)?,
             SearchNode::EditedInDays(days) => self.write_edited(*days)?,
+            SearchNode::IntroducedInDays(days) => self.write_introduced(*days)?,
             SearchNode::CardTemplate(template) => match template {
                 TemplateKind::Ordinal(_) => self.write_template(template),
                 TemplateKind::Name(name) => {
@@ -492,6 +493,18 @@ impl SqlWriter<'_> {
         Ok(())
     }
 
+    fn write_introduced(&mut self, days: u32) -> Result<()> {
+        let timing = self.col.timing_today()?;
+        let cutoff = (timing.next_day_at.0 - (86_400 * (days as i64))) * 1_000;
+        write!(
+            self.sql,
+            "(select min(id) > {} from revlog where cid = c.id)",
+            cutoff
+        )
+        .unwrap();
+        Ok(())
+    }
+
     fn write_regex(&mut self, word: &str) {
         self.sql.push_str("n.flds regexp ?");
         self.args.push(format!(r"(?i){}", word));
@@ -546,6 +559,7 @@ impl SearchNode {
     fn required_table(&self) -> RequiredTable {
         match self {
             SearchNode::AddedInDays(_) => RequiredTable::Cards,
+            SearchNode::IntroducedInDays(_) => RequiredTable::Cards,
             SearchNode::Deck(_) => RequiredTable::Cards,
             SearchNode::DeckId(_) => RequiredTable::Cards,
             SearchNode::Rated { .. } => RequiredTable::Cards,
diff --git a/rslib/src/search/writer.rs b/rslib/src/search/writer.rs
index f96823830..ffb4acaba 100644
--- a/rslib/src/search/writer.rs
+++ b/rslib/src/search/writer.rs
@@ -83,6 +83,7 @@ fn write_search_node(node: &SearchNode) -> String {
         SingleField { field, text, is_re } => write_single_field(field, text, *is_re),
         AddedInDays(u) => format!("added:{}", u),
         EditedInDays(u) => format!("edited:{}", u),
+        IntroducedInDays(u) => format!("introduced:{}", u),
         CardTemplate(t) => write_template(t),
         Deck(s) => maybe_quote(&format!("deck:{}", s)),
         DeckId(DeckIdType(i)) => format!("did:{}", i),