From df59f21fbc27ec37375613be35fd04eb3033189e Mon Sep 17 00:00:00 2001
From: Xe Iaso <me@xeiaso.net>
Date: Sat, 14 Oct 2023 11:38:13 -0400
Subject: internal/lume: make pages for post series

I'm probably reading something wrong in the documentation for Lume, but
I wasn't able to find an obvious way to generate pages for each of the post
series programmatically.

This is a bit of a hacky workaround that makes the Lume driver write
individual JSX files for each series defined in the Dhall source. It
should work for my needs though.

Signed-off-by: Xe Iaso <me@xeiaso.net>
---
 internal/lume/lume.go           | 61 +++++++++++++++++++++++++++++++++++++++++
 lume/src/blog/series/.gitignore |  2 ++
 lume/src/blog/series/_data.yml  |  1 +
 lume/src/blog/series/index.jsx  | 26 ++++++++++++++++++
 4 files changed, 90 insertions(+)
 create mode 100644 lume/src/blog/series/.gitignore
 create mode 100644 lume/src/blog/series/_data.yml
 create mode 100644 lume/src/blog/series/index.jsx

diff --git a/internal/lume/lume.go b/internal/lume/lume.go
index 7bee446..3f7c84e 100644
--- a/internal/lume/lume.go
+++ b/internal/lume/lume.go
@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"expvar"
 	"fmt"
+	"html/template"
 	"io/fs"
 	"log"
 	"log/slog"
@@ -339,6 +340,10 @@ func (f *FS) writeConfig() error {
 		}
 	}
 
+	if err := f.writeSeriesPages(); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -348,6 +353,62 @@ func (f *FS) Clacks() []string {
 	return f.conf.ClackSet
 }
 
+func (f *FS) writeSeriesPages() error {
+	seriesPageDir := filepath.Join(f.repoDir, f.opt.StaticSiteDir, "src", "blog", "series")
+
+	for k, v := range f.conf.SeriesDescMap {
+		fname := filepath.Join(seriesPageDir, fmt.Sprintf("%s.jsx", k))
+
+		fout, err := os.Create(fname)
+		if err != nil {
+			return fmt.Errorf("can't open %s: %w", fname, err)
+		}
+		defer fout.Close()
+
+		if err := seriesPageTemplate.Execute(fout, struct {
+			Series string
+			Desc   string
+		}{
+			Series: k,
+			Desc:   v,
+		}); err != nil {
+			return fmt.Errorf("can't write %s: %w", fname, err)
+		}
+	}
+
+	return nil
+}
+
+const seriesPageTemplateStr = `export const title = "{{.Series}}";
+export const layout = "base.njk";
+
+export default ({ search }) => {
+  const dateOptions = { year: "numeric", month: "2-digit", day: "2-digit" };
+
+  return (
+    <div>
+      <h1 className="text-3xl mb-4">{title}</h1>
+      <p className="mb-4">
+        {{.Desc}}
+      </p>
+
+      <ul class="list-disc ml-4 mb-4">
+        {search.pages("series={{.Series}}", "order date=desc").map((post) => {
+          const url = post.data.redirect_to ? post.data.redirect_to : post.data.url;
+          return (
+          <li>
+            <span className="font-mono">{post.data.date.toLocaleDateString("en-US", dateOptions)}</span> -{" "}
+            <a href={url}>{post.data.title}</a>
+          </li>
+        );
+        })}
+      </ul>
+    </div>
+  );
+};`
+
+var seriesPageTemplate = template.Must(template.New("seriesPage.jsx.tmpl").Parse(seriesPageTemplateStr))
+
 func (f *FS) buildResume(ctx context.Context) error {
 	t0 := time.Now()
 	wd := filepath.Join(f.repoDir, "dhall", "resume")
diff --git a/lume/src/blog/series/.gitignore b/lume/src/blog/series/.gitignore
new file mode 100644
index 0000000..3410fa1
--- /dev/null
+++ b/lume/src/blog/series/.gitignore
@@ -0,0 +1,2 @@
+*.jsx
+!index.jsx
diff --git a/lume/src/blog/series/_data.yml b/lume/src/blog/series/_data.yml
new file mode 100644
index 0000000..ab74b42
--- /dev/null
+++ b/lume/src/blog/series/_data.yml
@@ -0,0 +1 @@
+type: info
diff --git a/lume/src/blog/series/index.jsx b/lume/src/blog/series/index.jsx
new file mode 100644
index 0000000..1e5cbb8
--- /dev/null
+++ b/lume/src/blog/series/index.jsx
@@ -0,0 +1,26 @@
+export const title = "Post Series";
+export const layout = "base.njk";
+
+export default ({ seriesDescriptions }) => {
+  const dateOptions = { year: "numeric", month: "2-digit", day: "2-digit" };
+
+  return (
+    <>
+      <h1 className="text-3xl mb-4">{title}</h1>
+      <p className="mb-4">
+        TODO: filler text here
+      </p>
+
+      <ul class="list-disc ml-4 mb-4">
+        {Object
+          .keys(seriesDescriptions)
+          .map((k) => [k, seriesDescriptions[k]])
+          .map(([k, v]) => (
+            <li>
+              <a href={`/blog/series/${k}`}>{k}</a>: {v}
+            </li>
+          ))}
+      </ul>
+    </>
+  );
+};
-- 
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