[web-fronted] refactoring code

For historic reason, two handlers exists, one for POST and one for GET request.
Merge these two to one GET request handler. This handler has optionally three
parameteres:

	* filter: Filters the transactions by the given regex
	* date_start: Output only transactions after this date
	* date_end: Output only transactions before this date

If more than one parameter is given, all filters must match for a transaction to
be printed.

1 files changed, 24 insertions, 51 deletions

diff --git a/src/web_frontend/transactions.rs b/src/web_frontend/transactions.rs
index 28e2dd1..1b6d22c 100644
--- a/src/web_frontend/transactions.rs
+++ b/src/web_frontend/transactions.rs
@@ -30,33 +30,16 @@ struct TransactionContext {
 	date_end : String
 }
 
-#[derive(FromForm)]
-pub struct TransactionFilter {
-	filter : String
-}
-
-impl TransactionFilter {
-	pub fn apply_filter(&self, transactions : Vec<crate::banking::account::Transaction>) -> Vec<crate::banking::account::Transaction> {
-	let asset_ini = "data/asset.ini";
-	let asset : Asset = crate::banking::asset::Asset::from_ini_file(asset_ini);
-	    let transactions = asset.get_account_by_name("Girokonto");
-	    let acc;
-	    match transactions {
-		    Some(trans) => acc = trans,
-		    None => panic!("could not read file")
-	    }
-	    let t = acc.transactions;
-	    //self.filter.split("=").collect::<Vec<&str>>();
-	    let re = Regex::new(&self.filter).unwrap();
-	    let tmp = t.into_iter().filter(|transaction| re.is_match(&transaction.sender_name) || re.is_match(&transaction.reference) ).collect();
-	    tmp
+fn apply_transaction_filter(filter : String, transactions : Vec<crate::banking::account::Transaction>) -> Vec<crate::banking::account::Transaction> {
+    let re = Regex::new(&filter).unwrap();
+    let tmp = transactions.into_iter().filter(|transaction| re.is_match(&transaction.sender_name) || re.is_match(&transaction.reference) ).collect();
+    tmp
 
-	}
 }
 
-#[post("/transactions?<start>&<end>", data= "<transaction_filter>")]
-pub fn transaction_handler_post(start : Option<&RawStr>, end : Option<&RawStr>,
-			    transaction_filter : Form<TransactionFilter>) -> rocket_contrib::templates::Template {
+#[get("/transactions?<start>&<end>&<filter>")]
+pub fn transaction_handler(start : Option<&RawStr>, end : Option<&RawStr>,
+			   filter : Option<&RawStr>) -> rocket_contrib::templates::Template {
 	let date_start = match start {
 		Some(s) => { let mut tmp = s.to_string();
 			tmp.push_str("-01");
@@ -69,36 +52,26 @@ pub fn transaction_handler_post(start : Option<&RawStr>, end : Option<&RawStr>,
 			chrono::NaiveDate::parse_from_str(&tmp, "%Y-%m-%d").unwrap() },
 		None => Utc::today().naive_utc() 
 	};
-	let input : TransactionFilter = transaction_filter.into_inner();
-	let tmp = Vec::new();
-	let ft = input.apply_filter(tmp);
-	let context = TransactionContext { transactions : ft, account_name : String::from("TEST"),
-			filter : input.filter, date_start : date_start.to_string(),
-			date_end : date_end.to_string()};
-	Template::render("transaction", context)
-}
-
-#[get("/transactions?<start>&<end>")]
-pub fn transaction_handler(start : Option<&RawStr>, end : Option<&RawStr>) -> rocket_contrib::templates::Template {
-	let date_start = match start {
-		Some(s) => { let mut tmp = s.to_string();
-			tmp.push_str("-01");
-			chrono::NaiveDate::parse_from_str(&tmp, "%Y-%m-%d").unwrap() },
-		None => Utc::today().naive_utc()
+	let transaction_filter = match filter {
+		Some(s) => s.to_string(),
+		None => String::from("")
 	};
-	let date_end = match end {
-		Some(s) => { let mut tmp = s.to_string();
-			tmp.push_str("-01");
-			chrono::NaiveDate::parse_from_str(&tmp, "%Y-%m-%d").unwrap() },
-		None => Utc::today().naive_utc() 
-	};
-    let transactions = CsvFile::from_file("data/t.csv", ";", true);
-    let t : Vec<crate::banking::account::Transaction> ; 
+	let asset_ini = "data/asset.ini";
+	let asset : Asset = crate::banking::asset::Asset::from_ini_file(asset_ini);
+    let transactions = asset.get_account_by_name("Girokonto");
+    let acc;
     match transactions {
-	    Ok(trans) => t = crate::banking::account::Transaction::from_sparkasse_csv_file(trans),
-	    Err(e) => panic!("could not read file {:?}", e)
+	    Some(trans) => acc = trans,
+	    None => panic!("could not read file")
     }
-    let context = TransactionContext { transactions: t, account_name : String::from("Girokonto"),
+    let t = acc.transactions;
+    // apply parameters
+    // apply date filters
+
+    // apply filter
+    let ft = apply_transaction_filter(transaction_filter, t);
+
+    let context = TransactionContext { transactions: ft, account_name : String::from("Girokonto"),
     			filter : String::from(""), date_start : date_start.to_string()[0..7].to_string(),
     			date_end : date_end.to_string()[0..7].to_string()};
     Template::render("transaction", context)