From d170a2fccfa2a5e0e326515d83b720b122821fec Mon Sep 17 00:00:00 2001
From: Nathan McCarty <thatonelutenist@stranger.systems>
Date: Sun, 9 Feb 2025 02:12:14 -0500
Subject: [PATCH] Series commands

---
 blog                  | 100 ++++++++++++++++++++++++++++++++++++++++++
 lib/DB.rakumod        |  18 +++++++-
 lib/DB/Series.rakumod |   2 +-
 3 files changed, 118 insertions(+), 2 deletions(-)

diff --git a/blog b/blog
index 759f669..6784af9 100755
--- a/blog
+++ b/blog
@@ -3,6 +3,7 @@ use v6.e.PREVIEW;
 
 use DB;
 use DB::BlogMeta;
+use DB::Series;
 use DB::MarkdownPost;
 use DB::IdrisPost;
 
@@ -282,3 +283,102 @@ multi MAIN(
     }
     $db.write: $db-dir;
 }
+
+#| Create a new series
+multi MAIN(
+    "series",
+    "new",
+    #| The path of the database file
+    IO::Path(Str) :$db-dir = $default-db-dir,
+) {
+    my $db = read-db $db-dir;
+    say 'Series Title: ';
+    my $title = get;
+    say 'Series Description: ';
+    my $desc = get;
+
+    my $series = Series.new:
+        title => $title, desc => $desc;
+    my $id = $db.insert-series: $series;
+    say 'Series inserted with id ', $id;
+
+    $db.write: $db-dir;
+}
+
+
+#| Provide a table of series
+multi MAIN(
+    "series",
+    "list",
+    #| The path of the database directory
+    IO::Path(Str) :$db-dir = $default-db-dir,
+    #| The number of items to show on a single page
+    Int :$per-page = 10;
+    #| The page number to show
+    Int :$page = 1;
+) {
+    my $db = read-db $db-dir;
+    my @pages =
+        $db.series.sort(*.key).rotor($per-page, :partial);
+    my @page = @pages[$page - 1].flat;
+    my $table = Pretty::Table.new:
+        title => "Series (page $page/{@pages.elems})",
+        field-names => ["ID", "Title", "Desc"];
+    for @page -> $pair {
+        my $id = $pair.key;
+        my $series = $pair.value;
+        # TODO: Terminal aware truncation
+        my $title = do if $series.title.chars > 40 {
+           "{$series.title.substr(0, 50)}..."
+        } else {
+            $series.title
+        };
+        my $desc = do if $series.desc.chars > 40 {
+           "{$series.desc.substr(0, 50)}..."
+        } else {
+            $series.desc
+        };
+        $table.add-row: [$id, $title, $desc];
+    }
+    say $table;
+}
+
+#| Display the contents of a series
+multi MAIN(
+    "series",
+    "info",
+    #| The id of the series to display
+    Int $id,
+    #| The path of the database directory
+    IO::Path(Str) :$db-dir = $default-db-dir,
+) {
+    my $db = read-db $db-dir;
+    my $series = $db.series{$id.Int};
+    say 'Title: ', $series.title;
+    say 'Description:';
+    for $series.desc.lines -> $line {
+       say '  ', $line;
+    }
+    say 'Posts:';
+    for $series.post-ids -> $post-id {
+        my $post = $db.posts{$post-id};
+        say '  * ', $post-id, ': ', $post.title;
+    }
+}
+
+#| Add a post to a series
+multi MAIN(
+    "series",
+    "add",
+    #| The id of the series to add to
+    Int $series-id,
+    #| The id of the post to add
+    Int $post-id,
+    #| The path of the database directory
+    IO::Path(Str) :$db-dir = $default-db-dir,
+) {
+    my $db = read-db $db-dir;
+    my $series = $db.series{$series-id.Int};
+    $series.post-ids.push: $post-id.Int;
+    $db.write: $db-dir;
+}
diff --git a/lib/DB.rakumod b/lib/DB.rakumod
index d977061..042f1a9 100644
--- a/lib/DB.rakumod
+++ b/lib/DB.rakumod
@@ -40,6 +40,15 @@ class PostDB {
        }
    }
 
+   #| Get the next unused series ID
+   method next-series-id(--> Int) {
+       if %!series.elems > 0 {
+           %!series.keys.max + 1
+       } else {
+           0
+       }
+   }
+
    #| Insert a new post to the DB, returning its id
    method insert-post(PostTypes $post --> Int) {
        my $id = self.next-post-id;
@@ -47,6 +56,13 @@ class PostDB {
        $id
    }
 
+   #| Insert a new series to the DB, returning its id
+   method insert-series(Series:D $series --> Int) {
+       my $id = self.next-series-id;
+       %!series{$id} = $series;
+       $id
+   }
+
    #| Initialize a new database
    method init(BlogMeta:D $meta --> PostDB:D) {
        my %posts{Int} of PostTypes = %();
@@ -172,7 +188,7 @@ sub read-db(IO::Path:D $dir --> PostDB:D) is export {
        }
    }
    # Read series
-   my %series{Int} of PostTypes = %();
+   my %series{Int} of Series:D = %();
    # For backwards compatability, the series directory is optional. It will be
    # created on the next db operation, but we don't need it to read the site
    if $series-dir.e {
diff --git a/lib/DB/Series.rakumod b/lib/DB/Series.rakumod
index 2241215..4379cae 100644
--- a/lib/DB/Series.rakumod
+++ b/lib/DB/Series.rakumod
@@ -12,4 +12,4 @@ has Str:D $.title is required;
 has Str:D $.desc is required;
 
 #| The ids of the posts in the series, in series order
-has Int:D @.post-ids = [];
+has Int:D @.post-ids is rw = [];