export interface SplitExcelPayload {
  paths: string[]
  selected_columns: string[]
  split_mode: 'rows_per_file' | 'parts'
  rows_per_file?: number
  parts?: number
  output_dir?: string
}

export interface SplitExcelResultItem {
  result_id?: number
  source_path: string
  output_path?: string
  success: boolean
  error?: string
  row_count?: number
}

export interface SplitExcelSummary {
  total: number
  success_count: number
  failed_count: number
  output_dir?: string
}

export interface SplitExcelResponse {
  success: boolean
  summary?: SplitExcelSummary
  items?: SplitExcelResultItem[]
  error?: string
}

export interface ExcelInfoResponse {
  success: boolean
  headers?: string[]
  total_rows?: number
  error?: string
}

export interface CleanExcelPayload {
  paths: string[]
  selected_columns: string[]
  keep_integer_ids?: boolean
  keep_underscore_ids?: boolean
  output_dir?: string
}

export interface CleanExcelResultItem {
  result_id?: number
  source_path: string
  output_path?: string
  success: boolean
  error?: string
}

export interface ConvertTxtPayload {
  paths: string[]
  output_dir?: string
  template_id: string
}

export interface ConvertTxtTemplateItem {
  id: string
  label: string
  output_filename: string
  is_default?: boolean
  built_in?: boolean
}

export interface ConvertTxtResultItem {
  result_id?: number
  source_path: string
  output_path?: string
  success: boolean
  error?: string
}

export interface ConvertTxtSummary {
  total: number
  success_count: number
  failed_count: number
  output_dir?: string
}

export interface ConvertTxtResponse {
  success: boolean
  summary?: ConvertTxtSummary
  items?: ConvertTxtResultItem[]
  error?: string
}

export interface CleanExcelSummary {
  total: number
  success_count: number
  failed_count: number
  output_dir?: string
}

export interface CleanExcelResponse {
  success: boolean
  summary?: CleanExcelSummary
  items?: CleanExcelResultItem[]
  error?: string
}

export interface ConvertTxtHistoryResponse {
  success: boolean
  items?: ConvertTxtResultItem[]
  error?: string
}

export interface SplitExcelHistoryResponse {
  success: boolean
  items?: SplitExcelResultItem[]
  error?: string
}

export interface CleanExcelHistoryResponse {
  success: boolean
  items?: CleanExcelResultItem[]
  error?: string
}

export interface PywebviewApi {
  select_brand_xlsx_files?: () => Promise<string[]>
  select_clean_xlsx_files?: () => Promise<string[]>
  select_brand_folder?: () => Promise<string | null>
  select_clean_folder?: () => Promise<string | null>
  select_folder?: () => Promise<string | null>
  get_excel_headers?: (filePath: string) => Promise<{ success: boolean; headers?: string[]; error?: string }>
  get_dedupe_history?: () => Promise<CleanExcelHistoryResponse>
  get_convert_history?: () => Promise<ConvertTxtHistoryResponse>
  get_split_history?: () => Promise<SplitExcelHistoryResponse>
  delete_history_item?: (moduleType: string, resultId: number) => Promise<{ success: boolean; error?: string }>
  get_excel_info?: (filePath: string) => Promise<ExcelInfoResponse>
  clean_excel_files?: (payload: CleanExcelPayload) => Promise<CleanExcelResponse>
  split_excel_files?: (payload: SplitExcelPayload) => Promise<SplitExcelResponse>
  list_txt_templates?: () => Promise<ConvertTxtTemplateItem[]>
  import_txt_template?: (name?: string) => Promise<{ success: boolean; template?: ConvertTxtTemplateItem; error?: string }>
  set_default_txt_template?: (templateId: string) => Promise<{ success: boolean; error?: string }>
  delete_txt_template?: (templateId: string) => Promise<{ success: boolean; error?: string }>
  convert_excel_to_uk_txt?: (payload: ConvertTxtPayload) => Promise<ConvertTxtResponse>
  open_path?: (path: string) => Promise<{ success: boolean; error?: string }>
  save_template_xlsx?: () => Promise<{ success: boolean; path?: string; error?: string }>
  save_template_zip?: () => Promise<{ success: boolean; path?: string; error?: string }>
  save_file_from_url?: (url: string, filename: string) => Promise<{ success: boolean; path?: string; error?: string }>
}

declare global {
  interface Window {
    pywebview?: {
      api?: PywebviewApi
    }
  }
}

export function getPywebviewApi() {
  return window.pywebview?.api
}

export function hasPywebview() {
  return Boolean(getPywebviewApi())
}