2 files changed, 87 insertions, 47 deletions

diff --git a/src/main.rs b/src/main.rs
index 5350945..bfc2330 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,44 +3,5 @@ mod types;
 use types::*;
 
 fn main() {
-    let asset = Account {
-        account_type: AccountType::Asset,
-        path: "1".to_string(),
-        name: "Asset".to_string(),
-        description: "Asset".to_string()
-    };
-    let revenue = Account {
-        account_type: AccountType::Revenue,
-        path: "4".to_string(),
-        name: "Revenue".to_string(),
-        description: "Revenue".to_string()
-    };
-    let asset_debit = Transaction {
-        transaction_type: TransactionType::Debit,
-        account: asset,
-        amount: 1000
-    };
-    let revenue_credit = Transaction {
-        transaction_type: TransactionType::Credit,
-        account: revenue,
-        amount: 1000
-    };
-    let entry = JournalEntry {
-        date: chrono::Utc::now(),
-        transactions: vec![asset_debit, revenue_credit],
-        balance: 1000,
-        description: "Paycheck".to_string()
-    };
-    println!("date\t\t\t\t\taccount\tdebit\tcredit");
-    print!("{}\t", entry.date);
-    for t in &entry.transactions {
-        if t.transaction_type == TransactionType::Debit {
-            println!("{}\t{}", t.account.name, t.amount);
-        }
-    }
-    for t in entry.transactions {
-        if t.transaction_type == TransactionType::Credit {
-            println!("\t\t\t\t\t{}\t\t{}", t.account.name, t.amount);
-        }
-    }
+    println!("Hello World!");
 }
diff --git a/src/types.rs b/src/types.rs
index 2e83ea2..98af390 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -1,5 +1,34 @@
 use chrono::{DateTime, Utc};
+use ulid::Ulid;
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
+pub struct AccountId(Ulid);
+
+impl AccountId {
+    pub fn as_ulid(&self) -> Ulid {
+        self.0
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
+pub struct PostingId(Ulid);
+
+impl PostingId {
+    pub fn as_ulid(&self) -> Ulid {
+        self.0
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
+pub struct JournalEntryId(Ulid);
+
+impl JournalEntryId {
+    pub fn as_ulid(&self) -> Ulid {
+        self.0
+    }
+}
+
+#[derive(PartialEq)]
 pub enum AccountType {
     Asset,
     Liability,
@@ -9,26 +38,76 @@ pub enum AccountType {
 }
 
 pub struct Account {
-    pub account_id: u32,
+    account_id: AccountId,
     pub account_type: AccountType,
     pub name: String,
-    pub description: String,
+    pub description: String
+}
+
+pub struct NewAccount {
+    pub account_type: AccountType,
+    pub name: String,
+    pub description: String
+}
+
+impl NewAccount {
+    fn new(account_type: AccountType, name: impl Into<String>, description: impl Into<String>) -> NewAccount {
+        NewAccount {
+            account_type,
+            name: name.into(),
+            description: description.into()
+        }
+    }
 }
 
 #[derive(PartialEq)]
-pub enum TransactionType {
+pub enum PostingType {
     Debit,
     Credit
 }
 
-pub struct Transaction {
-    pub transaction_type: TransactionType,
-    pub account_id: u32,
+pub struct Posting {
+    posting_id: PostingId,
+    pub posting_type: PostingType,
+    pub account_id: AccountId,
     pub amount: u64
 }
 
+pub struct NewPosting {
+    pub posting_type: PostingType,
+    pub account_id: AccountId,
+    pub amount: u64
+}
+
+impl NewPosting {
+    fn new(posting_type: PostingType, account_id: AccountId, amount: u64) -> NewPosting {
+        NewPosting {
+            posting_type,
+            account_id,
+            amount
+        }
+    }
+}
+
 pub struct JournalEntry {
+    journal_entry_id: JournalEntryId,
     pub date: DateTime<Utc>,
-    pub transactions: Vec<Transaction>,
+    pub postings: Vec<Posting>,
     pub description: String
 }
+
+pub struct NewJournalEntry {
+    pub date: DateTime<Utc>,
+    pub postings: Vec<NewPosting>,
+    pub description: String
+}
+
+impl NewJournalEntry {
+    fn new(date: DateTime<Utc>, postings: Vec<NewPosting>, description: impl Into<String>) -> NewJournalEntry {
+        NewJournalEntry {
+            date,
+            postings,
+            description: description.into()
+        }
+    }
+}