import { IDocProps } from '../interfaces/IDocProps'

function convertLineBreaks(lines: string) {
  return lines.replace(/\n/g, '\\\\')
}

export function brief(options: IDocProps) {
  const {
    template,
    subject,
    yourRef,
    yourRefName,
    yourMail,
    myRef,
    customer,
    invoice,
    date,
    signature,
    specialMail,
    address,
    opening,
    body,
    closing,
    ps,
    enclosing,
  } = { ...options }

  return `% brief document
\\documentclass{scrlttr2}
\\LoadLetterOption{${template}}

\\setkomavar{subject}{${subject}}

${yourRef ? `\\setkomavar{yourref}[${yourRefName}]{${yourRef}}` : ''}
${yourMail ? `\\setkomavar{yourmail}{${yourMail}}` : ''}
${myRef ? `\\setkomavar{myref}{${myRef}}` : ''}
${customer ? `\\setkomavar{customer}{${customer}}` : ''}
${invoice ? `\\setkomavar{invoice}{${invoice}}` : ''}
${signature ? `\\setkomavar{signature}{${signature}}` : ''}
${specialMail ? `\\setkomavar{specialmail}{${specialMail}}` : ''}

${date ? `\\setkomavar{date}{${date}}` : ''}

\\begin{document}
\\begin{letter}{${convertLineBreaks(address)}}

    \\opening{${opening},}

    ${convertLineBreaks(body)}

    \\closing{${closing}}

    ${ps ? `\\ps{${ps}}` : ''}

    ${enclosing ? `\\encl{${enclosing}}` : ''}

\\end{letter}
\\end{document}`
}