Coverage Summary for Class: CsvImportReport (com.georgeci.moneysurfer.domain.csv)

 package com.georgeci.moneysurfer.domain.csv
 
 /**
  * Outcome of a CSV import. Rows that failed stay in [errors] with their
  * 1-based CSV row number (header is row 1, first data row is row 2) so the
  * user can locate them in a spreadsheet editor.
  */
 data class CsvImportReport(
     val imported: Int,
     val skippedDuplicates: Int,
     val errors: List<CsvRowError>,
 )
 
 data class CsvRowError(val rowNumber: Int, val issue: CsvRowIssue)
 
 /** Why a single CSV row could not be imported. Localised in the UI layer. */
 sealed interface CsvRowIssue {
     data class ColumnCountMismatch(val expected: Int, val actual: Int) : CsvRowIssue
     data class InvalidValue(val column: String) : CsvRowIssue
     data class UnknownWorkspace(val workspaceId: String) : CsvRowIssue
     data class UnknownAccount(val accountId: String) : CsvRowIssue
     data class UnknownCategory(val categoryId: String) : CsvRowIssue
     data class AccountWorkspaceMismatch(val accountId: String, val workspaceId: String) : CsvRowIssue
     data class CategoryWorkspaceMismatch(val categoryId: String, val workspaceId: String) : CsvRowIssue
     data class CurrencyMismatch(val currency: String, val accountCurrency: String) : CsvRowIssue
     data class UnpairedTransfer(val transferId: String) : CsvRowIssue
 }
 
 /**
  * File-level errors from [ExportTransactionsUseCase] / [ImportTransactionsUseCase].
  * Raw throwables (I/O and anything else that escapes the use cases) are
  * wrapped at this boundary per AGENTS.md so callers never see platform
  * exception types.
  */
 sealed class TransactionCsvError(message: String, cause: Throwable? = null) :
     RuntimeException(message, cause) {
     data class Unexpected(val unexpectedCause: Throwable) : TransactionCsvError(
         "CSV processing failed: " +
             (unexpectedCause.message ?: unexpectedCause::class.simpleName ?: "unknown cause"),
         unexpectedCause,
     )
     data object EmptyFile : TransactionCsvError("CSV file has no header row")
     data object HeaderMismatch :
         TransactionCsvError("CSV header does not match the MoneySurfer transactions format")
 
     /**
      * The picked file is larger than [ImportTransactionsUseCase] will read into
      * memory. Guards against an accidental or hostile multi-GB "backup" that
      * would otherwise OOM the app during import.
      */
     data class FileTooLarge(val limitBytes: Long) :
         TransactionCsvError("CSV file exceeds the $limitBytes-byte import limit")
 }