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@@ -158,6 +1067,76 @@ dependencies = [
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+dependencies = [
+ "libc",
+ "windows-sys 0.48.0",
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+
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@@ -165,10 +1144,90 @@ dependencies = [
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  "csv",
  "itertools",
+ "mail-send",
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+ "rpassword",
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+
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+dependencies = [
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+ "untrusted 0.9.0",
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+
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+dependencies = [
+ "ring 0.17.8",
+ "untrusted 0.9.0",
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+
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@@ -209,24 +1284,773 @@ dependencies = [
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+ "cfg-if",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "serde",
+ "stable_deref_trait",
+ "yoke-derive",
+ "zerofrom",
+]
+
+[[package]]
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+ "synstructure",
+]
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+ "zerovec-derive",
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+ "bzip2",
+ "constant_time_eq",
+ "crc32fast",
+ "crossbeam-utils",
+ "deflate64",
+ "displaydoc",
+ "flate2",
+ "hmac",
+ "indexmap",
+ "lzma-rs",
+ "memchr",
+ "pbkdf2",
+ "rand",
+ "sha1",
+ "thiserror 2.0.8",
+ "time",
+ "zeroize",
+ "zopfli",
+ "zstd",
+]
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+ "bumpalo",
+ "crc32fast",
+ "lockfree-object-pool",
+ "log",
+ "once_cell",
+ "simd-adler32",
+]
+
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+ "zstd-safe",
+]
+
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+name = "zstd-safe"
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+ "zstd-sys",
+]
+
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+name = "zstd-sys"
+version = "2.0.13+zstd.1.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "cc",
+ "pkg-config",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 422830d..3f1bb6c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,10 @@ edition = "2021"
 argh = "0.1.12"
 csv = "1.2.2"
 itertools = "0.13.0"
+mail-send = "0.4.9"
 rand = "0.8.5"
 rand_chacha = "0.3.1"
+rpassword = "7.3.1"
 serde = "1.0.188"
 serde_json = "1.0.107"
+tokio = {version="1.42.0", features = ["full"]}
diff --git a/src/io.rs b/src/io.rs
index 631103f..95c6e0b 100644
--- a/src/io.rs
+++ b/src/io.rs
@@ -7,7 +7,7 @@ use itertools::Itertools;
 impl Repartition {
     pub fn to_json(&self) -> String {
         let participants = self
-            .0
+            .transferts
             .iter()
             .flat_map(|t| vec![t.from.clone(), t.to.clone()])
             .dedup()
@@ -25,7 +25,7 @@ impl Repartition {
             );
         }
         let mut str_edges = String::new();
-        for t in &self.0 {
+        for t in &self.transferts {
             str_edges += &format!(
                 "{{
                     \"data\": {{
@@ -42,7 +42,7 @@ impl Repartition {
                 t.to.name,
             )
         }
-        "[".to_owned() + &str_nodes + "," + &str_edges + "]"
+        "{".to_owned() + "nodes:[" + &str_nodes + "], edges: [" + &str_edges + "]}"
     }
 }
 
@@ -53,8 +53,6 @@ const FORMAT_STRING: &'static str = "<html>
 <body>
 <div id=\"graph\" style=\"width: auto;height: 500px;\"></div>
 
-<h3>Balance totale (doit être égal à zéro) : TOTAL_BALANCE €</h3>
-
     <script type=\"text/javascript\">
 var cy = cytoscape({
 
@@ -98,7 +96,6 @@ use super::repartition::*;
 pub fn plot_repartition(rep: &Repartition) {
     let text_html = FORMAT_STRING
         .to_string()
-        .replace("TOTAL_BALANCE", &rep.total_balance().to_string())
         .replace("ELEMENTS", &rep.to_json());
     fs::write("/tmp/repartition.html", text_html).expect("Could not write into /tmp/");
     Command::new("firefox")
diff --git a/src/mail.rs b/src/mail.rs
new file mode 100644
index 0000000..537de16
--- /dev/null
+++ b/src/mail.rs
@@ -0,0 +1,111 @@
+use itertools::Itertools;
+use std::process::Command;
+
+use crate::repartition::Repartition;
+
+const FORMAT_MAIL_RECEIVER: &'static str = "
+Bonjour $NOM,
+Voilà venu le temps de la répartition des dépenses des Alpes 2024 (toutes mes excuses pour le retard).
+
+Tu es dans le groupe des personnes qui **à qui on doit de l'argent**.
+
+On te dois en tout $ARGENT€.
+
+Voici les virements que tu dois recevoir:
+$VIREMENTS
+
+Il faudra contacter les gens directement !
+
+Merci d'avance et des gros bisous.
+
+Joël de la compta
+";
+
+const FORMAT_MAIL_PAYER: &'static str = "
+Bonjour $NOM,
+Voilà venu le temps de la répartition des dépenses des Alpes 2024 (toutes mes excuses pour le retard).
+
+Tu es dans le groupe des personnes qui **qui doivent de l'argent**.
+
+Tu dois en tout $ARGENT€.
+
+Voici les virements que tu dois faire:
+$VIREMENTS
+
+Il faudra contacter les gens directement !
+
+Merci d'avance et des gros bisous.
+
+Joël de la compta
+";
+
+impl Repartition {
+    fn prepare_mail(&self, name: String, payer: bool) -> (String, String) {
+        let format_text = if payer {
+            FORMAT_MAIL_PAYER
+        } else {
+            FORMAT_MAIL_RECEIVER
+        };
+        let mut total_amount = 0;
+        let mut current_mail = String::new();
+        let total_virements = self
+            .transferts
+            .iter()
+            .filter(|t| (payer && t.from.name == name) || t.to.name == name)
+            .map(|t| {
+                if payer {
+                    current_mail = t.from.email.clone();
+                } else {
+                    current_mail = t.to.email.clone();
+                }
+                total_amount += t.amount;
+                t.to_string(payer)
+            })
+            .join("\n");
+        (
+            current_mail,
+            format_text
+                .replace("$NOM", &name)
+                .replace("$ARGENT", &format!("{:.2}", total_amount as f32 / 100.))
+                .replace("$VIREMENTS", &total_virements),
+        )
+    }
+    pub async fn send_all_mails(&self) {
+        use mail_send::*;
+
+        let sending_mail = "commu.alpes.site@gmail.com";
+        let password_mail = rpassword::prompt_password("Password?").unwrap();
+
+        let mut client = SmtpClientBuilder::new("smtp.gmail.com", 587)
+            .implicit_tls(false)
+            .credentials((sending_mail.as_ref(), password_mail.as_ref()))
+            .connect()
+            .await
+            .unwrap();
+        let mut mails = vec![];
+
+        for name in &self.payers {
+            let (to_mail, mail) = self.prepare_mail(name.clone(), true);
+            mails.push((name, to_mail, mail.clone()));
+            println!("{}", mail);
+        }
+        for name in &self.receivers {
+            let (to_mail, mail) = self.prepare_mail(name.clone(), false);
+            mails.push((name, to_mail, mail.clone()));
+            println!("{}", mail);
+        }
+        for (name, to_mail, mail) in mails {
+            let message = mail_builder::MessageBuilder::new()
+                .from(("Compta Alpes", "commu.alpes.site@gmail.com"))
+                .to(vec![(name.clone(), to_mail.clone())])
+                .cc(vec![("Joël de la compta")])
+                .subject("Compta Alpes 2024")
+                .text_body(mail.clone());
+            println!("Sending mail to {}", name);
+            println!("{}", mail);
+            client.send(message).await.unwrap();
+            let mut child = Command::new("sleep").arg("3").spawn().unwrap();
+            let _result = child.wait().unwrap();
+        }
+    }
+}
diff --git a/src/main.rs b/src/main.rs
index 956e59e..53211a8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,12 +1,16 @@
 use std::fs;
-
+use std::io as stdio;
+use std::io::prelude::*;
 mod io;
+mod mail;
 pub mod repartition;
 
 use argh::FromArgs;
 use rand::SeedableRng;
 use rand_chacha::ChaCha8Rng;
 
+extern crate tokio;
+
 #[derive(FromArgs)]
 /// Computation of repartition
 struct Arguments {
@@ -27,7 +31,19 @@ struct Arguments {
     transfert_list_filename: Option<String>,
 }
 
-fn main() {
+fn pause() {
+    let mut stdin = stdio::stdin();
+    let mut stdout = stdio::stdout();
+
+    // We want the cursor to stay at the end of the line, so we print without a newline and flush manually.
+    write!(stdout, "Press any key to continue...").unwrap();
+    stdout.flush().unwrap();
+
+    // Read a single byte and discard
+    let _ = stdin.read(&mut [0u8]).unwrap();
+}
+#[tokio::main]
+async fn main() {
     use repartition::*;
     let args: Arguments = argh::from_env();
     if let Some(filename) = args.user_list_filename {
@@ -76,6 +92,8 @@ fn main() {
             serde_json::from_reader(fs::File::open(filename).expect("not able to read file"))
                 .expect("unable to read file");
         io::plot_repartition(&repart);
+        pause();
+        repart.send_all_mails().await;
     } else {
         println!("No parameter given, exiting");
     }
diff --git a/src/repartition.rs b/src/repartition.rs
index 9f2a9e3..59a4ddc 100644
--- a/src/repartition.rs
+++ b/src/repartition.rs
@@ -50,11 +50,14 @@ impl RandomRepartitionBuilder {
     }
 
     pub fn build_repartition(mut self) -> Repartition {
-        let mut rep = Repartition(Vec::new());
-
+        let mut transfer_vec = Vec::new();
+        let mut all_payers = HashSet::new();
+        let mut all_receivers = HashSet::new();
         while !self.payers.is_empty() || !self.receivers.is_empty() {
             let mut payer = self.get_next_payer();
+            all_payers.insert(payer.name.clone());
             let mut receiver = self.get_next_receiver();
+            all_receivers.insert(receiver.name.clone());
             let amount = min(-payer.balance_cents, receiver.balance_cents);
             dbg!(amount);
             let transfert = Transfer {
@@ -64,7 +67,7 @@ impl RandomRepartitionBuilder {
             };
             payer.balance_cents += amount;
             receiver.balance_cents -= amount;
-            rep.0.push(transfert);
+            transfer_vec.push(transfert);
             if payer.balance_cents < 0 {
                 self.payers.push(payer);
             }
@@ -72,8 +75,14 @@ impl RandomRepartitionBuilder {
                 self.receivers.push(receiver);
             }
         }
+        assert_eq!(self.payers.len(), 0);
+        assert_eq!(self.receivers.len(), 0);
 
-        rep
+        Repartition {
+            transferts: transfer_vec,
+            payers: all_payers,
+            receivers: all_receivers,
+        }
     }
 }
 
@@ -83,16 +92,51 @@ pub struct Transfer {
     pub to: User,
     pub amount: u32,
 }
-
-#[derive(Debug, Deserialize, Serialize)]
-pub struct Repartition(pub Vec<Transfer>);
-
-type Evaluation = (usize);
-impl Repartition {
-    pub fn total_balance(&self) -> i32 {
-        self.0.iter().map(|t| t.amount as i32).sum()
-    }
-    pub fn evaluate(&self) -> Evaluation {
-        self.0.len()
+impl Transfer {
+    pub fn to_string(&self, payer: bool) -> String {
+        if payer {
+            format!(
+                "   - Virement de {:.2}€ à {} ({})",
+                self.amount as f32 / 100.,
+                self.to.name,
+                self.to.email
+            )
+            .to_string()
+        } else {
+            format!(
+                "   - Virement de {:.2}€ de {} ({})",
+                self.amount as f32 / 100.,
+                self.from.name,
+                self.from.email
+            )
+            .to_string()
+        }
+    }
+}
+
+#[derive(Debug, Deserialize, Serialize)]
+pub struct Repartition {
+    pub transferts: Vec<Transfer>,
+    pub payers: HashSet<String>,
+    pub receivers: HashSet<String>,
+}
+
+type Evaluation = (i64);
+impl Repartition {
+    pub fn total_balance(&self) -> i32 {
+        self.transferts
+            .iter()
+            .map(|t| {
+                if self.payers.contains(&t.from.name) {
+                    t.amount as i32
+                } else {
+                    -(t.amount as i32)
+                }
+            })
+            .sum()
+    }
+    pub fn evaluate(&self) -> Evaluation {
+        (self.transferts.len() as i64) * 20
+            - (100 / (self.transferts.iter().map(|t| t.amount).min().unwrap() as f32) as i64)
     }
 }