1 6b2c26f4 2023-12-19 benni use std::{fmt::{self, Display, Formatter}, str::FromStr};
  2 6b2c26f4 2023-12-19 benni use chrono::NaiveDate;
  3 6b2c26f4 2023-12-19 benni use serde::{Serialize, Deserialize};
  4 6b2c26f4 2023-12-19 benni 
  5 6b2c26f4 2023-12-19 benni #[derive(Debug, Default, Clone, Serialize, Deserialize)]
  6 6b2c26f4 2023-12-19 benni pub struct Business {
  7 6b2c26f4 2023-12-19 benni     pub name: String,
  8 6b2c26f4 2023-12-19 benni     pub owner_name: String,
  9 6b2c26f4 2023-12-19 benni     pub address: String,
 10 6b2c26f4 2023-12-19 benni     pub zip_city: String,
 11 6b2c26f4 2023-12-19 benni     pub email: String,
 12 6b2c26f4 2023-12-19 benni     pub iban: String,
 13 6b2c26f4 2023-12-19 benni     pub bic: String,
 14 6b2c26f4 2023-12-19 benni     pub bank: String,
 15 6b2c26f4 2023-12-19 benni     pub ustid: String,
 16 6b2c26f4 2023-12-19 benni }
 17 6b2c26f4 2023-12-19 benni 
 18 6b2c26f4 2023-12-19 benni #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Deserialize, Serialize)]
 19 6b2c26f4 2023-12-19 benni pub struct CustomerId(pub usize);
 20 6b2c26f4 2023-12-19 benni 
 21 6b2c26f4 2023-12-19 benni #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
 22 6b2c26f4 2023-12-19 benni pub struct Customer {
 23 6b2c26f4 2023-12-19 benni     pub id: CustomerId,
 24 6b2c26f4 2023-12-19 benni     pub name: String,
 25 6b2c26f4 2023-12-19 benni     pub address: String,
 26 6b2c26f4 2023-12-19 benni     pub zip_city: String,
 27 6b2c26f4 2023-12-19 benni }
 28 6b2c26f4 2023-12-19 benni 
 29 6b2c26f4 2023-12-19 benni #[derive(Debug, Clone, Serialize, Deserialize)]
 30 6b2c26f4 2023-12-19 benni pub struct Record {
 31 6b2c26f4 2023-12-19 benni     pub description: String,
 32 6b2c26f4 2023-12-19 benni     pub date: NaiveDate,
 33 6b2c26f4 2023-12-19 benni     pub count: f32,
 34 6b2c26f4 2023-12-19 benni     pub price: f32,
 35 6b2c26f4 2023-12-19 benni }
 36 6b2c26f4 2023-12-19 benni 
 37 6b2c26f4 2023-12-19 benni #[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
 38 6b2c26f4 2023-12-19 benni pub struct InvoiceId {
 39 6b2c26f4 2023-12-19 benni     pub year: u16,
 40 6b2c26f4 2023-12-19 benni     pub month: u8,
 41 6b2c26f4 2023-12-19 benni     pub n: u32,
 42 6b2c26f4 2023-12-19 benni }
 43 6b2c26f4 2023-12-19 benni 
 44 6b2c26f4 2023-12-19 benni #[derive(Debug, Clone, Serialize, Deserialize)]
 45 6b2c26f4 2023-12-19 benni pub struct Invoice {
 46 6b2c26f4 2023-12-19 benni     pub id: InvoiceId,
 47 6b2c26f4 2023-12-19 benni     pub date: NaiveDate,
 48 6b2c26f4 2023-12-19 benni     pub business: Business,
 49 6b2c26f4 2023-12-19 benni     pub customer: Customer,
 50 6b2c26f4 2023-12-19 benni     pub records: Vec<Record>,
 51 6b2c26f4 2023-12-19 benni }
 52 6b2c26f4 2023-12-19 benni 
 53 6b2c26f4 2023-12-19 benni impl Record {
 54 6b2c26f4 2023-12-19 benni     pub fn date(&self) -> String {
 55 6b2c26f4 2023-12-19 benni 	self.date.format("%Y-%m-%d").to_string()
 56 6b2c26f4 2023-12-19 benni     }
 57 6b2c26f4 2023-12-19 benni }
 58 6b2c26f4 2023-12-19 benni 
 59 6b2c26f4 2023-12-19 benni impl Invoice {
 60 6b2c26f4 2023-12-19 benni     pub fn file_name(&self) -> String {
 61 6b2c26f4 2023-12-19 benni 	format!("invoice-{}.pdf", self.id)
 62 6b2c26f4 2023-12-19 benni     }
 63 6b2c26f4 2023-12-19 benni     pub fn date(&self) -> String {
 64 6b2c26f4 2023-12-19 benni 	self.date.format("%Y-%m-%d").to_string()
 65 6b2c26f4 2023-12-19 benni     }
 66 6b2c26f4 2023-12-19 benni }
 67 6b2c26f4 2023-12-19 benni 
 68 6b2c26f4 2023-12-19 benni impl Display for Customer {
 69 6b2c26f4 2023-12-19 benni     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
 70 6b2c26f4 2023-12-19 benni 	write!(f, "{} ({})", self.name, self.id)
 71 6b2c26f4 2023-12-19 benni     }
 72 6b2c26f4 2023-12-19 benni }
 73 6b2c26f4 2023-12-19 benni 
 74 6b2c26f4 2023-12-19 benni impl Display for CustomerId {
 75 6b2c26f4 2023-12-19 benni     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
 76 6b2c26f4 2023-12-19 benni 	write!(f, "{:03}", self.0)
 77 6b2c26f4 2023-12-19 benni     }
 78 6b2c26f4 2023-12-19 benni }
 79 6b2c26f4 2023-12-19 benni 
 80 6b2c26f4 2023-12-19 benni impl Display for InvoiceId {
 81 6b2c26f4 2023-12-19 benni     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
 82 6b2c26f4 2023-12-19 benni 	write!(f, "{:04}-{:02}-{:03}", self.year, self.month, self.n)
 83 6b2c26f4 2023-12-19 benni     }
 84 6b2c26f4 2023-12-19 benni }
 85 6b2c26f4 2023-12-19 benni 
 86 6b2c26f4 2023-12-19 benni impl FromStr for InvoiceId {
 87 6b2c26f4 2023-12-19 benni     type Err = ();
 88 6b2c26f4 2023-12-19 benni     fn from_str(s: &str) -> Result<Self, Self::Err> {
 89 6b2c26f4 2023-12-19 benni 	fn parse(s: &str) -> Option<InvoiceId> {
 90 6b2c26f4 2023-12-19 benni 	    let mut iter = s.split('-');
 91 6b2c26f4 2023-12-19 benni 	    let year = iter.next()?.parse().ok()?;
 92 6b2c26f4 2023-12-19 benni 	    let month = iter.next()?.parse().ok()?;
 93 6b2c26f4 2023-12-19 benni 	    let n = iter.next()?.parse().ok()?;
 94 6b2c26f4 2023-12-19 benni 
 95 6b2c26f4 2023-12-19 benni 	    if year < 1000 || year > 9999 || month < 1 || month > 12 {
 96 6b2c26f4 2023-12-19 benni 		return None;
 97 6b2c26f4 2023-12-19 benni 	    }
 98 6b2c26f4 2023-12-19 benni 	    
 99 6b2c26f4 2023-12-19 benni 	    Some(InvoiceId {
100 6b2c26f4 2023-12-19 benni 		year,
101 6b2c26f4 2023-12-19 benni 		month,
102 6b2c26f4 2023-12-19 benni 		n,
103 6b2c26f4 2023-12-19 benni 	    })
104 6b2c26f4 2023-12-19 benni 	}
105 6b2c26f4 2023-12-19 benni 	parse(s).ok_or(())
106 6b2c26f4 2023-12-19 benni     }
107 6b2c26f4 2023-12-19 benni }