feat: add cheque books and received cheques management

- Implemented ChequeBooksPage for viewing and filtering cheque books.
- Added NewReceivedChequePage for recording received cheques.
- Created ReceivedChequesPage for listing and managing received cheques.
- Introduced API endpoints for bank accounts, cheque books, and received cheques.
- Defined types for payments including bank accounts, cheque books, and received cheques.

Distribution/Features/BankAccount/BankAccountController.cs

@@ -0,0 +1,66 @@
+using Distribution.Models;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Distribution.Features.BankAccount;
+
+[ApiController]
+[Route("api")]
+public class BankAccountController(BankAccountService service) : ControllerBase
+{
+    [HttpGet("bank-accounts")]
+    public async Task<IActionResult> List([FromQuery] BankAccountType? accountType)
+    {
+        var result = await service.ListAsync(accountType);
+        return Ok(result);
+    }
+
+    [HttpPost("bank-accounts")]
+    public async Task<IActionResult> CreateBank(CreateBankAccountRequest request, CancellationToken ct)
+    {
+        try { return Ok(await service.CreateBankAsync(request, ct)); }
+        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
+    }
+
+    [HttpPost("cash-accounts")]
+    public async Task<IActionResult> CreateCash(CreateCashAccountRequest request, CancellationToken ct)
+    {
+        try { return Ok(await service.CreateCashAsync(request, ct)); }
+        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
+    }
+
+    [HttpPut("cash-accounts/{id:guid}")]
+    public async Task<IActionResult> UpdateCash(Guid id, UpdateCashAccountRequest request, CancellationToken ct)
+    {
+        try
+        {
+            var result = await service.UpdateCashAsync(id, request, ct);
+            return result is null ? NotFound() : Ok(result);
+        }
+        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
+    }
+
+    [HttpPatch("cash-accounts/{id:guid}/status")]
+    public async Task<IActionResult> SetCashStatus(Guid id, SetCashAccountStatusRequest request, CancellationToken ct)
+    {
+        try
+        {
+            var result = await service.SetCashStatusAsync(id, request, ct);
+            return result is null ? NotFound() : Ok(result);
+        }
+        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
+    }
+
+    [HttpDelete("cash-accounts/{id:guid}")]
+    public async Task<IActionResult> DeleteCash(Guid id, CancellationToken ct)
+    {
+        try
+        {
+            var ok = await service.DeleteCashAsync(id, ct);
+            return ok ? NoContent() : NotFound();
+        }
+        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
+    }
+
+    [HttpGet("cash-account-types")]
+    public async Task<IActionResult> ListCashAccountTypes() => Ok(await service.ListCashAccountTypesAsync());
+}

Distribution/Features/BankAccount/BankAccountDTOs.cs

@@ -0,0 +1,33 @@
+using Distribution.Models;
+
+namespace Distribution.Features.BankAccount;
+
+public record BankAccountResponse(
+    BankAccountType AccountType,
+    Guid AccountId,
+    string AccountName,
+    string? BankName,
+    string? CashAccountTypeName,
+    string? AccountNumber,
+    string CurrencyCode,
+    DateTime CreatedAt,
+    bool? IsActive,
+    bool? IsDefault);
+
+public record CreateBankAccountRequest(
+    string AccountName,
+    string? BankName,
+    string? AccountNumber,
+    string? CurrencyCode);
+
+public record CreateCashAccountRequest(
+    string AccountName,
+    string CashAccountTypeName,
+    string? AccountNumber,
+    string? CurrencyCode);
+
+public record UpdateCashAccountRequest(string AccountName);
+
+public record SetCashAccountStatusRequest(bool IsActive);
+
+public record CashAccountTypeDto(string Name);

Distribution/Features/BankAccount/BankAccountRepository.cs

@@ -0,0 +1,40 @@
+using Distribution.Data;
+using Distribution.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace Distribution.Features.BankAccount;
+
+public class BankAccountRepository(AppDBContext context) : IBankAccountRepository
+{
+    public async Task<Models.BankAccount?> GetByIdAsync(Guid id) =>
+        await context.BankAccounts.FirstOrDefaultAsync(a => a.Id == id);
+
+    public async Task<List<Models.BankAccount>> ListAsync(BankAccountType? accountType)
+    {
+        var query = context.BankAccounts.AsQueryable();
+        if (accountType is not null)
+            query = query.Where(a => a.AccountType == accountType);
+        return await query.OrderByDescending(a => a.CreatedAt).ToListAsync();
+    }
+
+    public async Task<List<string>> ListCashAccountTypeNamesAsync() =>
+        await context.BankAccounts
+            .Where(a => a.AccountType == BankAccountType.Cash && a.CashAccountTypeName != null)
+            .Select(a => a.CashAccountTypeName!)
+            .Distinct()
+            .OrderBy(n => n)
+            .ToListAsync();
+
+    public async Task<bool> ExistsByNameAsync(BankAccountType type, string accountName, Guid? excludeId = null) =>
+        await context.BankAccounts.AnyAsync(a =>
+            a.AccountType == type &&
+            a.AccountName == accountName &&
+            (excludeId == null || a.Id != excludeId));
+
+    public async Task AddAsync(Models.BankAccount account) =>
+        await context.BankAccounts.AddAsync(account);
+
+    public void Update(Models.BankAccount account) => context.BankAccounts.Update(account);
+
+    public void Remove(Models.BankAccount account) => context.BankAccounts.Remove(account);
+}

Distribution/Features/BankAccount/BankAccountService.cs

@@ -0,0 +1,116 @@
+using Distribution.Infra.UoW;
+using Distribution.Models;
+
+namespace Distribution.Features.BankAccount;
+
+public class BankAccountService(IBankAccountRepository repo, IUnitOfWork uow)
+{
+    private const string DefaultCurrency = "LKR";
+
+    private static BankAccountResponse ToResponse(Models.BankAccount a) =>
+        new(
+            a.AccountType,
+            a.Id,
+            a.AccountName,
+            a.AccountType == BankAccountType.Bank ? a.BankName : null,
+            a.AccountType == BankAccountType.Cash ? a.CashAccountTypeName : null,
+            a.AccountNumber,
+            a.CurrencyCode,
+            a.CreatedAt,
+            a.AccountType == BankAccountType.Cash ? a.IsActive : null,
+            a.AccountType == BankAccountType.Cash ? a.IsDefault : null);
+
+    public async Task<List<BankAccountResponse>> ListAsync(BankAccountType? accountType) =>
+        (await repo.ListAsync(accountType)).Select(ToResponse).ToList();
+
+    public async Task<List<CashAccountTypeDto>> ListCashAccountTypesAsync() =>
+        (await repo.ListCashAccountTypeNamesAsync()).Select(n => new CashAccountTypeDto(n)).ToList();
+
+    public async Task<BankAccountResponse> CreateBankAsync(CreateBankAccountRequest request, CancellationToken ct = default)
+    {
+        if (string.IsNullOrWhiteSpace(request.AccountName))
+            throw new InvalidOperationException("AccountName is required");
+        if (await repo.ExistsByNameAsync(BankAccountType.Bank, request.AccountName))
+            throw new InvalidOperationException("A bank account with this name already exists");
+
+        var account = new Models.BankAccount
+        {
+            AccountType = BankAccountType.Bank,
+            AccountName = request.AccountName,
+            BankName = request.BankName,
+            AccountNumber = request.AccountNumber,
+            CurrencyCode = string.IsNullOrWhiteSpace(request.CurrencyCode) ? DefaultCurrency : request.CurrencyCode!,
+            IsActive = true,
+            IsDefault = false
+        };
+
+        await repo.AddAsync(account);
+        await uow.CommitAsync(ct);
+        return ToResponse(account);
+    }
+
+    public async Task<BankAccountResponse> CreateCashAsync(CreateCashAccountRequest request, CancellationToken ct = default)
+    {
+        if (string.IsNullOrWhiteSpace(request.AccountName))
+            throw new InvalidOperationException("AccountName is required");
+        if (string.IsNullOrWhiteSpace(request.CashAccountTypeName))
+            throw new InvalidOperationException("CashAccountTypeName is required");
+        if (await repo.ExistsByNameAsync(BankAccountType.Cash, request.AccountName))
+            throw new InvalidOperationException("A cash account with this name already exists");
+
+        var account = new Models.BankAccount
+        {
+            AccountType = BankAccountType.Cash,
+            AccountName = request.AccountName,
+            CashAccountTypeName = request.CashAccountTypeName,
+            AccountNumber = request.AccountNumber,
+            CurrencyCode = string.IsNullOrWhiteSpace(request.CurrencyCode) ? DefaultCurrency : request.CurrencyCode!,
+            IsActive = true,
+            IsDefault = false
+        };
+
+        await repo.AddAsync(account);
+        await uow.CommitAsync(ct);
+        return ToResponse(account);
+    }
+
+    public async Task<BankAccountResponse?> UpdateCashAsync(Guid id, UpdateCashAccountRequest request, CancellationToken ct = default)
+    {
+        var account = await repo.GetByIdAsync(id);
+        if (account is null || account.AccountType != BankAccountType.Cash) return null;
+        if (string.IsNullOrWhiteSpace(request.AccountName))
+            throw new InvalidOperationException("AccountName is required");
+        if (await repo.ExistsByNameAsync(BankAccountType.Cash, request.AccountName, excludeId: id))
+            throw new InvalidOperationException("A cash account with this name already exists");
+
+        account.AccountName = request.AccountName;
+        repo.Update(account);
+        await uow.CommitAsync(ct);
+        return ToResponse(account);
+    }
+
+    public async Task<BankAccountResponse?> SetCashStatusAsync(Guid id, SetCashAccountStatusRequest request, CancellationToken ct = default)
+    {
+        var account = await repo.GetByIdAsync(id);
+        if (account is null || account.AccountType != BankAccountType.Cash) return null;
+        if (account.IsDefault && !request.IsActive)
+            throw new InvalidOperationException("The default cash account cannot be deactivated");
+
+        account.IsActive = request.IsActive;
+        repo.Update(account);
+        await uow.CommitAsync(ct);
+        return ToResponse(account);
+    }
+
+    public async Task<bool> DeleteCashAsync(Guid id, CancellationToken ct = default)
+    {
+        var account = await repo.GetByIdAsync(id);
+        if (account is null || account.AccountType != BankAccountType.Cash) return false;
+        if (account.IsDefault)
+            throw new InvalidOperationException("The default cash account cannot be deleted");
+
+        repo.Remove(account);
+        await uow.CommitAsync(ct);
+        return true;
+    }
+}

Distribution/Features/BankAccount/IBankAccountRepository.cs

@@ -0,0 +1,14 @@
+using Distribution.Models;
+
+namespace Distribution.Features.BankAccount;
+
+public interface IBankAccountRepository
+{
+    Task<Models.BankAccount?> GetByIdAsync(Guid id);
+    Task<List<Models.BankAccount>> ListAsync(BankAccountType? accountType);
+    Task<List<string>> ListCashAccountTypeNamesAsync();
+    Task<bool> ExistsByNameAsync(BankAccountType type, string accountName, Guid? excludeId = null);
+    Task AddAsync(Models.BankAccount account);
+    void Update(Models.BankAccount account);
+    void Remove(Models.BankAccount account);
+}