first ideas of separate user structs, working on #911

src/model/user/fee.rs

@@ -1,5 +1,11 @@
 use super::User;
+use crate::{
+    model::family::Family, BOAT_STORAGE, EINSCHREIBGEBUEHR, FAMILY_THREE_OR_MORE, FAMILY_TWO,
+    FOERDERND, REGULAR, RENNRUDERBEITRAG, STUDENT_OR_PUPIL, UNTERSTUETZEND,
+};
+use chrono::{Datelike, Local, NaiveDate};
 use serde::Serialize;
+use sqlx::SqlitePool;
 
 #[derive(Debug, Serialize)]
 pub struct Fee {
@@ -56,3 +62,114 @@ impl Fee {
         }
     }
 }
+
+impl User {
+    pub async fn fee(&self, db: &SqlitePool) -> Option<Fee> {
+        if !self.has_role(db, "Donau Linz").await
+            && !self.has_role(db, "Unterstützend").await
+            && !self.has_role(db, "Förderndes Mitglied").await
+        {
+            return None;
+        }
+        if self.deleted {
+            return None;
+        }
+
+        let mut fee = Fee::new();
+
+        if let Some(family) = Family::find_by_opt_id(db, self.family_id).await {
+            for member in family.members(db).await {
+                fee.add_person(&member);
+                if member.has_role(db, "paid").await {
+                    fee.paid();
+                }
+                fee.merge(member.fee_without_families(db).await);
+            }
+            if family.amount_family_members(db).await > 2 {
+                fee.add("Familie 3+ Personen".into(), FAMILY_THREE_OR_MORE);
+            } else {
+                fee.add("Familie 2 Personen".into(), FAMILY_TWO);
+            }
+        } else {
+            fee.add_person(self);
+            if self.has_role(db, "paid").await {
+                fee.paid();
+            }
+            fee.merge(self.fee_without_families(db).await);
+        }
+
+        Some(fee)
+    }
+
+    async fn fee_without_families(&self, db: &SqlitePool) -> Fee {
+        let mut fee = Fee::new();
+
+        if !self.has_role(db, "Donau Linz").await
+            && !self.has_role(db, "Unterstützend").await
+            && !self.has_role(db, "Förderndes Mitglied").await
+        {
+            return fee;
+        }
+        if self.has_role(db, "Rennrudern").await {
+            if self.has_role(db, "half-rennrudern").await {
+                fee.add("Rennruderbeitrag (1/2 Preis) ".into(), RENNRUDERBEITRAG / 2);
+            } else if !self.has_role(db, "renntrainer").await {
+                fee.add("Rennruderbeitrag".into(), RENNRUDERBEITRAG);
+            }
+        }
+
+        let amount_boats = self.amount_boats(db).await;
+        if amount_boats > 0 {
+            fee.add(
+                format!("{}x Bootsplatz", amount_boats),
+                amount_boats * BOAT_STORAGE,
+            );
+        }
+
+        if let Some(member_since_date) = &self.member_since_date {
+            if let Ok(member_since_date) = NaiveDate::parse_from_str(member_since_date, "%Y-%m-%d")
+            {
+                if member_since_date.year() == Local::now().year()
+                    && !self.has_role(db, "no-einschreibgebuehr").await
+                {
+                    fee.add("Einschreibgebühr".into(), EINSCHREIBGEBUEHR);
+                }
+            }
+        }
+
+        let halfprice = if let Some(member_since_date) = &self.member_since_date {
+            match NaiveDate::parse_from_str(member_since_date, "%Y-%m-%d") {
+                Ok(member_since_date) => {
+                    let halfprice_startdate =
+                        NaiveDate::from_ymd_opt(Local::now().year(), 7, 1).unwrap();
+                    member_since_date >= halfprice_startdate
+                }
+                Err(_) => false,
+            }
+        } else {
+            false
+        };
+
+        if self.has_role(db, "Unterstützend").await {
+            fee.add("Unterstützendes Mitglied".into(), UNTERSTUETZEND);
+        } else if self.has_role(db, "Förderndes Mitglied").await {
+            fee.add("Förderndes Mitglied".into(), FOERDERND);
+        } else if Family::find_by_opt_id(db, self.family_id).await.is_none() {
+            if self.has_role(db, "Student").await || self.has_role(db, "Schüler").await {
+                if halfprice {
+                    fee.add("Schüler/Student (Halbpreis)".into(), STUDENT_OR_PUPIL / 2);
+                } else {
+                    fee.add("Schüler/Student".into(), STUDENT_OR_PUPIL);
+                }
+            } else if self.has_role(db, "Ehrenmitglied").await {
+                fee.add("Ehrenmitglied".into(), 0);
+            } else if halfprice {
+                fee.add("Mitgliedsbeitrag (Halbpreis)".into(), REGULAR / 2);
+            } else {
+                fee.add("Mitgliedsbeitrag".into(), REGULAR);
+            }
+        }
+
+        fee
+    }
+}