package payments

import "testing"

func TestValidateProduct(t *testing.T) {
	pack := ProductInput{
		Title:  "100 chips",
		Atoms:  []AtomLine{{Atom: "chips", Quantity: 100}},
		Prices: []PriceLine{{Method: "direct", Currency: CurrencyRUB, Amount: 14900}},
	}
	value := ProductInput{
		Title:  "5 hints",
		Atoms:  []AtomLine{{Atom: "hints", Quantity: 5}},
		Prices: []PriceLine{{Method: "", Currency: CurrencyChip, Amount: 50}},
	}

	tests := []struct {
		name     string
		in       ProductInput
		sellable bool
		wantErr  bool
	}{
		{"valid pack", pack, true, false},
		{"valid value", value, true, false},
		{"pack with a benefit atom", ProductInput{Title: "x", Atoms: []AtomLine{{"chips", 100}, {"hints", 5}}, Prices: pack.Prices}, true, true},
		{"pack without money price", ProductInput{Title: "x", Atoms: pack.Atoms, Prices: value.Prices}, true, true},
		{"value without chip price", ProductInput{Title: "x", Atoms: value.Atoms, Prices: pack.Prices}, true, true},
		{"tournament sellable is refused", ProductInput{Title: "cup", Atoms: []AtomLine{{"tournament", 1}}, Prices: value.Prices}, true, true},
		{"tournament draft is allowed", ProductInput{Title: "cup", Atoms: []AtomLine{{"tournament", 1}}}, false, false},
		{"unknown atom", ProductInput{Title: "x", Atoms: []AtomLine{{"gold", 1}}}, false, true},
		{"duplicate atom", ProductInput{Title: "x", Atoms: []AtomLine{{"hints", 1}, {"hints", 2}}}, false, true},
		{"non-positive quantity", ProductInput{Title: "x", Atoms: []AtomLine{{"hints", 0}}}, false, true},
		{"chip price with a method", ProductInput{Title: "x", Atoms: value.Atoms, Prices: []PriceLine{{Method: "direct", Currency: CurrencyChip, Amount: 50}}}, true, true},
		{"money price without a method", ProductInput{Title: "x", Atoms: pack.Atoms, Prices: []PriceLine{{Method: "", Currency: CurrencyRUB, Amount: 149}}}, true, true},
		{"duplicate price", ProductInput{Title: "x", Atoms: pack.Atoms, Prices: []PriceLine{{Method: "direct", Currency: CurrencyRUB, Amount: 1}, {Method: "direct", Currency: CurrencyRUB, Amount: 2}}}, true, true},
		{"empty title", ProductInput{Title: " ", Atoms: value.Atoms, Prices: value.Prices}, true, true},
		{"no atoms", ProductInput{Title: "x", Prices: value.Prices}, true, true},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			err := validateProduct(tt.in, tt.sellable)
			if (err != nil) != tt.wantErr {
				t.Fatalf("validateProduct = %v, wantErr %v", err, tt.wantErr)
			}
		})
	}
}