Filipbankaccount

FilipKrstevski/bankaccount/bank_account.go

@@ -0,0 +1,73 @@
+package account
+
+import "sync"
+
+type (
+	Account interface {
+		Close() (payout int64, ok bool)
+		Balance() (balance int64, ok bool)
+		Deposit(amount int64) (newBalance int64, ok bool)
+	}
+)
+
+type accountData struct {
+	balance int64
+	open    bool
+	mux     sync.Mutex
+}
+
+func Open(initialDeposit int64) Account {
+
+	if initialDeposit < 0 {
+		return nil
+	}
+
+	var acc Account
+	acc = &accountData{
+		balance: initialDeposit,
+		open:    true,
+	}
+
+	return acc
+}
+
+func (acc *accountData) Close() (payout int64, ok bool) {
+	acc.mux.Lock()
+	defer acc.mux.Unlock()
+
+	if !acc.open {
+		return 0, false
+	}
+
+	acc.open = false
+	return acc.balance, true
+}
+
+func (acc *accountData) Balance() (balance int64, ok bool) {
+
+	acc.mux.Lock()
+	defer acc.mux.Unlock()
+
+	if !acc.open {
+		return 0, false
+	}
+
+	return acc.balance, true
+}
+
+func (acc *accountData) Deposit(amount int64) (int64, bool) {
+
+	acc.mux.Lock()
+	defer acc.mux.Unlock()
+
+	if !acc.open {
+		return 0, false
+	}
+
+	if acc.balance+amount < 0 {
+		return acc.balance, false
+	}
+
+	acc.balance += amount
+	return acc.balance, true
+}

FilipKrstevski/house/house.go

@@ -0,0 +1,44 @@
+package house
+import "strings"
+func Verse(v int) string {
+	rhyme := "This is the "
+	end := verses[0].object + " that " + verses[0].action + "."
+	if v == 1 {
+		return rhyme + end
+	}
+	rhyme += verses[v-1].object
+	for ; v > 1; v-- {
+		rhyme += "\nthat " + verses[v-1].action + " the "
+		if v-1 == 1 {
+			rhyme += end
+		} else {
+			rhyme += verses[v-2].object
+		}
+	}
+	return rhyme
+}
+func Song() string {
+	allverses := []string{}
+	for v := 1; v <= len(verses); v++ {
+		allverses = append(allverses, Verse(v))
+	}
+	return strings.Join(allverses, "\n\n")
+}
+var verses = []verse{
+	verse{object: "house", action: "Jack built"},
+	verse{object: "malt", action: "lay in"},
+	verse{object: "rat", action: "ate"},
+	verse{object: "cat", action: "killed"},
+	verse{object: "dog", action: "worried"},
+	verse{object: "cow with the crumpled horn", action: "tossed"},
+	verse{object: "maiden all forlorn", action: "milked"},
+	verse{object: "man all tattered and torn", action: "kissed"},
+	verse{object: "priest all shaven and shorn", action: "married"},
+	verse{object: "rooster that crowed in the morn", action: "woke"},
+	verse{object: "farmer sowing his corn", action: "kept"},
+	verse{object: "horse and the hound and the horn", action: "belonged to"},
+}
+type verse struct {
+	object string
+	action string
+}