From 71da37799bf77bb97a672cb4233ed136854a8a53 Mon Sep 17 00:00:00 2001
From: Teddy Wing
Date: Sun, 15 Apr 2018 12:04:57 +0200
Subject: meetup_rss: Add `description_header` to format date & venue

This function will format a string containing a date and venue for
inclusion in the description of an RSS `Item`.

Added a `derive(Clone)` on `Venue` in order to be able to clone it to
use its fields in the function.
---
 meetup/src/event.rs |   2 +-
 src/meetup_rss.rs   | 147 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 148 insertions(+), 1 deletion(-)

diff --git a/meetup/src/event.rs b/meetup/src/event.rs
index 30b3fca..cc6abdb 100644
--- a/meetup/src/event.rs
+++ b/meetup/src/event.rs
@@ -8,7 +8,7 @@ pub struct Event {
     pub venue: Option<Venue>,
 }
 
-#[derive(Debug, Deserialize, PartialEq)]
+#[derive(Clone, Debug, Deserialize, PartialEq)]
 pub struct Venue {
     pub name: String,
     pub address_1: String,
diff --git a/src/meetup_rss.rs b/src/meetup_rss.rs
index fe7b6df..3445a1a 100644
--- a/src/meetup_rss.rs
+++ b/src/meetup_rss.rs
@@ -35,9 +35,70 @@ pub fn write(channel: Channel) -> Result<()> {
 }
 
 
+fn description_header(event: &Event) -> String {
+    // let when = if let Some(date) = event.local_date &&
+    //         Some(time) = event.local_time {
+    //     format!("When: {} {}", date, time)
+    // } else {
+    //     ""
+    // };
+
+    let when = if event.local_date.is_some() &&
+            event.local_time.is_some() {
+        format!(
+            "When: {} {}",
+            event.local_date.clone().unwrap_or("".to_owned()),
+            event.local_time.clone().unwrap_or("".to_owned()),
+        )
+    } else {
+        "".to_owned()
+    };
+
+    let place = if let Some(venue) = event.venue.clone() {
+        format!(
+            "Where: {}, {}, {}, {}",
+            venue.name,
+            venue.address_1,
+            venue.city,
+            venue.localized_country_name,
+        )
+    } else {
+        "".to_owned()
+    };
+
+    // format!("{}\n{}", when, place)
+    // [when, place].join("\n")
+
+    let header = when;
+
+    let header = if !header.is_empty() && !place.is_empty() {
+        format!("{}\n", header)
+    } else {
+        header
+    };
+
+    let header = format!("{}{}", header, place);
+
+    header
+
+
+//     format!(
+//         "When: {} {}
+// Where: {}, {}, {}, {}",
+//         event.local_date,
+//         event.local_time,
+//         event.venue.name,
+//         event.venue.address_1,
+//         event.venue.city,
+//         event.venue.localized_country_name,
+//     )
+}
+
+
 #[cfg(test)]
 mod tests {
     use super::*;
+    use meetup::event::Venue;
 
     #[test]
     fn test_generate_builds_a_channel_of_events() {
@@ -64,4 +125,90 @@ mod tests {
             item.description().unwrap()
         );
     }
+
+    #[test]
+    fn description_header_makes_a_string_of_time_and_venue() {
+        let event = Event {
+            name: "Fairies Story 3 Release Party".to_owned(),
+            description: Some("Empty".to_owned()),
+            link: "http://example.com".to_owned(),
+            local_date: Some("2018-04-15".to_owned()),
+            local_time: Some("19:00".to_owned()),
+            venue: Some(Venue {
+                name: "Passage".to_owned(),
+                address_1: "99 Passage des Panoramas".to_owned(),
+                city: "Paris".to_owned(),
+                localized_country_name: "France".to_owned(),
+            }),
+        };
+
+        let header = description_header(&event);
+
+        assert_eq!(
+            "When: 2018-04-15 19:00
+Where: Passage, 99 Passage des Panoramas, Paris, France",
+            header
+        );
+    }
+
+    #[test]
+    fn description_header_excludes_when_if_no_date_present() {
+        let header = description_header(&Event {
+            name: "Fairies Story 3 Release Party".to_owned(),
+            description: Some("Empty".to_owned()),
+            link: "http://example.com".to_owned(),
+            local_date: None,
+            local_time: Some("19:00".to_owned()),
+            venue: Some(Venue {
+                name: "Passage".to_owned(),
+                address_1: "99 Passage des Panoramas".to_owned(),
+                city: "Paris".to_owned(),
+                localized_country_name: "France".to_owned(),
+            }),
+        });
+
+        assert_eq!(
+            "Where: Passage, 99 Passage des Panoramas, Paris, France",
+            header
+        );
+    }
+
+    #[test]
+    fn description_header_excludes_when_if_no_time_present() {
+        let header = description_header(&Event {
+            name: "Fairies Story 3 Release Party".to_owned(),
+            description: Some("Empty".to_owned()),
+            link: "http://example.com".to_owned(),
+            local_date: Some("2018-04-15".to_owned()),
+            local_time: None,
+            venue: Some(Venue {
+                name: "Passage".to_owned(),
+                address_1: "99 Passage des Panoramas".to_owned(),
+                city: "Paris".to_owned(),
+                localized_country_name: "France".to_owned(),
+            }),
+        });
+
+        assert_eq!(
+            "Where: Passage, 99 Passage des Panoramas, Paris, France",
+            header
+        );
+    }
+
+    #[test]
+    fn description_header_excludes_where_if_no_venue_present() {
+        let header = description_header(&Event {
+            name: "Fairies Story 3 Release Party".to_owned(),
+            description: Some("Empty".to_owned()),
+            link: "http://example.com".to_owned(),
+            local_date: Some("2018-04-15".to_owned()),
+            local_time: Some("19:00".to_owned()),
+            venue: None,
+        });
+
+        assert_eq!(
+            "When: 2018-04-15 19:00",
+            header
+        );
+    }
 }
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