Complete waitlist support, used for meetup#47HEADmain

2 files changed, 104 insertions, 50 deletions

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..00674ff
--- /dev/null
+++ b/README.md
@@ -0,0 +1,42 @@
+cph.rs attendee
+===============
+Creates an A4 tick-off list from a meetup.com organizer export.
+
+ • Generates one file with attendees, and one with those who are waitlisted.
+
+Used by cph.rs to take attendance on dead-tree as people arrive.
+
+Prerequisites
+-------------
+Rust and stuff, of course, and the csv (called xls) export reachable through:
+
+  meetup.com → [event] → # Attendees
+  Manage → Manage Attendees → Attendee details
+
+One might also need some tool to convert to a printable file, unless having a
+printer which understands the Scalable Vector Graphics format.
+
+Usage
+-----
+Simply call:
+
+```
+   cphrs-attendance <meetup-export.xls>
+   inkscape --export-filename=<attendees.pdf> <meetup-export.svg>
+   inkscape --export-filename=<waitlist.pdf> <meetup-export-waitlist.svg>
+```
+
+Future work/Wishlist
+--------------------
+Not implemented, but maybe possibly sometime?
+
+ • Supporting also for post-event follow-up features.
+ • Detection and visualization of RSVP time and when someone got migrated from
+   the waiting list.
+ • Integration with [raffle](https://github.com/vanjacosic/raffle)?
+ • Tablet computer support, to skip the need for manually syncing hard-copies.
+   Unresearched Idea: Generation of pdf with forms for any iPad/android?
+   Unresearched Idea: Cursive front-end, for postmarketOS devices?
+ • OCR/AI support, to automate the hard-copy sync and introduce faults?
+
+Patches welcome!
diff --git a/src/main.rs b/src/main.rs
index b92a0eb..3a97efd 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -23,31 +23,7 @@ use {
 const COL_WIDTH: f64 = 350.0;
 const ROWS: usize = 35;
 
-fn main() -> Result<()> {
-    let first_arg = args().nth(1).ok_or_else(|| anyhow!("Missing meetup csv file argument."))?;
-    let fullpath = first_arg.clone();
-    let filename = fullpath.split('/').last().unwrap_or(&fullpath);
-    let (basename, _) = filename.split_once('.')
-        .ok_or_else(|| anyhow!("Unexpected filename. Was it downloaded from meetup.com?"))?;
-    let (event_name, _) = filename.split_once("_sponsored")
-        .ok_or_else(|| anyhow!("Unexpected filename. Was it downloaded from meetup.com?"))?;
-
-    let mut csv_file = File::open(first_arg)?;
-    let mut contents = String::new();
-    csv_file.read_to_string(&mut contents)?;
-
-    let mut attendees: Vec<String> = vec![];
-    let mut waitlisted: Vec<String> = vec![];
-
-    for (n, row) in contents.split('\n').enumerate() {
-        let fields: Vec<&str> = row.split('\t').collect();
-        match (fields.get(1), fields.get(4)) {
-            (Some(name), Some(rsvp)) => { },
-            _ => eprintln!("Unparsable row {n}: {}", row),
-        // fields.get(5) "Waiting List"
-        }
-    }
-
+fn gimme_a_form(title: &str, attendees: Vec<String>) -> Document {
     let page_height = "297mm";
     let page_width = "210mm";
     let x_crop = 60.047f64;
@@ -59,7 +35,7 @@ fn main() -> Result<()> {
     let title_text = Text::new()
         .set("x", 1.2 * x_crop)
         .set("y", 1.2 * y_crop / 2.0)
-        .add(TextNode::new(event_name.chars().map(|c| if c == '_' { ' '} else { c }).collect::<String>()))
+        .add(TextNode::new(title.chars().map(|c| if c == '_' { ' '} else { c }).collect::<String>()))
         .set("style", format!("font-size:{fontsize}px;line-height:1.25;font-family:'{fontfamily}'"));
 
     let mut document = Document::new()
@@ -69,35 +45,71 @@ fn main() -> Result<()> {
         .set("xmlns:inkscape", "http://www.inkscape.org/namespaces/inkscape")
         .add(title_text);
 
-    for (n, attendee) in contents.split('\n').enumerate() {
-        if let Some((name, _)) = attendee.split_once('\t') {
-            let row = n % ROWS;
-            let col = n / ROWS;
+    for (n, name) in attendees.iter().enumerate() {
+        let row = n % ROWS;
+        let col = n / ROWS;
 
-            let attendee_box = Rectangle::new()
-                .set("x", 1.2 * x_crop + col as f64 * COL_WIDTH)
-                .set("y", 1.2 * y_crop + row as f64 * fontsize * 1.2)
-                .set("style", "fill:#ffffff;stroke:#000000;fill-opacity=0.4;opacity=0.4")
-                .set("height", fontsize * 1.2)
-                .set("width", COL_WIDTH);
+        let attendee_box = Rectangle::new()
+            .set("x", 1.2 * x_crop + col as f64 * COL_WIDTH)
+            .set("y", 1.2 * y_crop + row as f64 * fontsize * 1.2)
+            .set("style", "fill:#ffffff;stroke:#000000;fill-opacity=0.4;opacity=0.4")
+            .set("height", fontsize * 1.2)
+            .set("width", COL_WIDTH);
 
-            let attendee_text = Text::new()
-                .set("x", 1.2 * x_crop + col as f64 * COL_WIDTH + 40.0)
-                .set("y", 1.2 * y_crop + fontsize + row as f64 * fontsize * 1.2)
-                .add(TextNode::new(name))
-                .set("style", format!("font-size:{fontsize}px;line-height:1.25;font-family:'{fontfamily}'"));
+        let attendee_text = Text::new()
+            .set("x", 1.2 * x_crop + col as f64 * COL_WIDTH + 40.0)
+            .set("y", 1.2 * y_crop + fontsize + row as f64 * fontsize * 1.2)
+            .add(TextNode::new(name))
+            .set("style", format!("font-size:{fontsize}px;line-height:1.25;font-family:'{fontfamily}'"));
 
-            document = document
-                .add(attendee_box)
-                .add(attendee_text);
-        } else {
-            if attendee.is_empty() {
-                continue;
-            }
-            return Err(anyhow!("Could not parse: '{attendee}'"));
+        document = document
+            .add(attendee_box)
+            .add(attendee_text);
+    }
+
+    document
+}
+
+fn main() -> Result<()> {
+    let first_arg = args().nth(1).ok_or_else(|| anyhow!("Missing meetup csv file argument."))?;
+    let fullpath = first_arg.clone();
+    let filename = fullpath.split('/').last().unwrap_or(&fullpath);
+    let (basename, _) = filename.split_once('.')
+        .ok_or_else(|| anyhow!("Unexpected filename. Was it downloaded from meetup.com?"))?;
+    let (event_name, _) = filename.split_once("_sponsored")
+        .ok_or_else(|| anyhow!("Unexpected filename. Was it downloaded from meetup.com?"))?;
+
+    let mut csv_file = File::open(first_arg)?;
+    let mut contents = String::new();
+    csv_file.read_to_string(&mut contents)?;
+
+    let mut attendees: Vec<String> = vec![];
+    let mut waitlisted: Vec<String> = vec![];
+
+    for (n, row) in contents.split('\n').enumerate() {
+        let fields: Vec<&str> = row.split('\t').collect();
+        match (fields.first(), fields.get(4)) {
+            (Some(name), Some(rsvp)) => {
+                match *rsvp {
+                    "Waiting List" => waitlisted.push(name.to_string()),
+                    "Yes" => attendees.push(name.to_string()),
+                    _ => {
+                        if n == 0 {
+                            continue;
+                        } else {
+                            panic!("Unexpected rsvp on line {}: {rsvp}", n + 1);
+                        }
+                    }
+                }
+            },
+            _ if row.is_empty() => { /* Empty lines are okay! */ }
+            _ => eprintln!("Unparsable row {}: '{}'", n + 1, row),
         }
     }
+    let attendee_document = gimme_a_form(event_name, attendees);
+    svg::save(format!("{basename}.svg"), &attendee_document).unwrap();
+    let waitlist_document = gimme_a_form(&format!("{event_name} waiting list"), waitlisted);
+    svg::save(format!("{basename}-waitlist.svg"), &waitlist_document).unwrap();
 
-    svg::save(format!("{basename}.svg"), &document).unwrap();
     Ok(())
 }