/// <summary>
/// Add some debt by caller to mentioned user. Order-less way to alter balance.
/// </summary>
private async Task HandleOweAction(SlashCommand command)
{
try
{
// Example: ['owe', '@user' '4.99']
var args = command.Text.Split(' ');
if (args.Length != 3)
{
throw new FormatException();
}
var creditor = FoodUser.CreateFromString(args[1].Trim());
var debtor = new FoodUser(command.UserId, command.UserName);
if (debtor.UniqueId == creditor.UniqueId)
{
await SendError(command.ResponseUrl, new BadRequestException("You can't do it to yourself."));
return;
}
var creditValue = decimal.Parse(args[2].Replace(',', '.'));
await foodService.OweCredit(debtor, creditor, creditValue);
}
catch (FormatException)
{
await SendError(command.ResponseUrl,
new BadRequestException($"Incorrect format, expected: `/food {CommandTexts.Owe} @<user> <cost>`"));
}
}
/// <summary>
/// Forgive mentioned user's debt fully. Order-less way to alter balance.
/// </summary>
private async Task HandleForgiveAction(SlashCommand command)
{
try
{
// Example: ['forgive', '@user']
var args = command.Text.Split(' ');
if (args.Length != 2)
{
throw new FormatException();
}
var debtor = FoodUser.CreateFromString(args[1].Trim());
var creditor = new FoodUser(command.UserId, command.UserName);
if (debtor.UniqueId == creditor.UniqueId)
{
await SendError(command.ResponseUrl, new BadRequestException("You can't do it to yourself."));
return;
}
await foodService.ResetCredit(debtor, creditor);
}
catch (FormatException)
{
await SendError(command.ResponseUrl,
new BadRequestException($"Incorrect format, expected: `/food {CommandTexts.Forgive} @<user>`"));
}
}
/// <summary>
/// Add someone else as eater to currently open order and publish updated order to slack.
/// Update current entry, if already added.
/// Can be used to host external guests.
/// </summary>
private async Task HandleEatAsOtherAction(SlashCommand command)
{
try
{
// Example: ['eat', 'batman', '12.50', 'pizza']
var args = command.Text.Split(' ', StringSplitOptions.RemoveEmptyEntries).ToList();
if (args.Count < 3)
{
throw new FormatException();
}
// Eater
var eaterStr = args[1].Trim();
var eater = FoodUser.CreateFromString(eaterStr);
// Cost
args[2] = args[2].Replace(',', '.');
var cost = decimal.Parse(args[2], CultureInfo.InvariantCulture);
// Optional item description
string item = null !;
if (args.Count >= 4)
{
item = item = string.Join(' ', args.Skip(3).ToArray());
}
var updatedOrder = await foodService.AddEater(eater : eater, cost, item);
await SendCommandResponse(command, SlackFormatter.BuildOrderMessage(updatedOrder));
}
catch (FormatException)
{
await SendError(command.ResponseUrl,
new BadRequestException($"Incorrect format, expected: `/food {CommandTexts.EatAs} <who> <cost> [description]`"));
}
catch (Exception x)
{
await SendError(command.ResponseUrl, x);
}
}