// #DIM dimensionsnr namn
// #DIM 6 "Projekt"
const rDim = /#DIM\s+(-?\d+)\s+"([^"]*)"$/

export function parseDim(line: string) {
  const result = line.match(rDim)

  if (!result) {
    console.error(line)
    throw Error('parsing error')
  }

  const [, number, name] = result

  return {
    number: parseInt(number),
    name,
  }
}

// #IB årsnr konto saldo kvantitet
// #IB 0 1790 11946.07 0
// #IB 0 2083 -57106301 0
const rIB = /^#IB\s+(-?\d+)\s+(\d{4,4})\s+(-?\d+(?:\.\d{1,2})?)\s+(-?\d+)$/

export function parseIB(line: string) {
  const result = line.match(rIB)

  if (!result) {
    console.error(line)
    throw Error('parsing error')
  }

  const [, yearNumber, accountNumber, balance, quantity] = result

  return {
    accountNumber: parseInt(accountNumber),
    yearNumber: parseInt(yearNumber),
    balance: parseFloat(balance),
    quantity: quantity ? parseInt(quantity) : null,
  }
}

// #KONTO 1249 "Ack avskr bilar/transportmedel"
const rKonto = /^#KONTO\s+(\d{4,4})\s+"([^"]*)"$/

export function parseKonto(line: string) {
  const result = line.match(rKonto)

  if (!result) {
    console.error(line)
    throw Error('parsing error')
  }

  const [, number, description] = result

  return {
    number: parseInt(number),
    description,
  }
}

// #OBJEKT dimensionsnr objektnr objektnamn
// #OBJEKT 6 "4" "Entreer"
const rObjekt = /^#OBJEKT\s+(\d+)\s+"?(\d+)"?\s"([^"]*)"$/

export function parseObjekt(line: string) {
  const result = line.match(rObjekt)

  if (!result) {
    console.error(line)
    throw Error('parsing error')
  }

  const [, dimensionNumber, number, name] = result

  return {
    dimensionNumber: parseInt(dimensionNumber),
    number: parseInt(number),
    name,
  }
}

// #RAR årsnr start slut
// #RAR 0 20160101 20161231
// #RAR -1 20150101 20151231
const rRAR = /^#RAR\s+(-?\d+)\s+(\d{8,8})\s+(\d{8,8})$/

export function parseRAR(line: string) {
  const result = line.match(rRAR)

  if (!result) {
    console.error(line)
    throw Error('parsing error')
  }

  const [, yearNumber, startDate, endDate] = result

  return {
    yearNumber: parseInt(yearNumber),
    startDate,
    endDate,
  }
}

// #SRU konto SRU-kod
// #SRU 1240 7215
const rSRU = /^#SRU\s+(\d{4,4})\s+(\d{4,4})$/

export function parseSRU(line: string) {
  const result = line.match(rSRU)

  if (!result) {
    console.error(line)
    throw Error('parsing error')
  }

  const [, number, sru] = result

  return {
    number: parseInt(number),
    sru: parseInt(sru),
  }
}

// #TRANS kontonr {objektlista} belopp transdat transtext kvantitet sign
// #TRANS 1790 {1 "1"} 7509 "" "Faktura 9631584500436 172-57 - Perspektiv Bredband AB" 0
// #TRANS     6310 {}      9076.00 20160131 "jan - mars"
const rTrans =
  /^#TRANS\s+(\d{4,4})\s+\{([^}]+)?\}\s+(-?\d+(?:\.\d+)?)\s+"?([^"]*)"?\s+"?([^"]*)"?(?:\s+(\d+))?(?:\s+(.*))?$/
const rObjectList = /"?(\d+)"?\s+"?(\d+)"/g

export function parseTrans(line: string) {
  const result = line.match(rTrans)

  if (!result) {
    console.error(line)
    throw new Error('parsing error')
  }

  const [, accountNumber, objectListString, amount, transactionDate, description, quantity, signature] = result

  let objectList: [number, number][] | null = null

  if (objectListString) {
    objectList = []
    const result = objectListString.matchAll(rObjectList)

    for (const match of result) {
      const [, dimension, object] = match as string[]

      objectList.push([dimension, object].map((val) => parseInt(val)) as [number, number])
    }
  }

  return {
    accountNumber: parseInt(accountNumber),
    objectList,
    amount: parseFloat(amount),
    transactionDate: transactionDate || null,
    description: description || null,
    quantity: quantity ? parseInt(quantity) : null,
    signature: signature || null,
  }
}

// #UB årsnr konto saldo kvantitet
// #UB 0 1110 77246210 0
// #UB 0 1229 -37390.26 0
const rUB = /^#UB\s+(-?\d+)\s+(\d{4,4})\s+(-?\d+(?:\.\d{1,2})?)\s+(-?\d+)$/

export function parseUB(line: string) {
  const result = line.match(rUB)

  if (!result) {
    console.error(line)
    throw Error('parsing error')
  }

  const [, yearNumber, accountNumber, balance, quantity] = result

  return {
    accountNumber: parseInt(accountNumber),
    yearNumber: parseInt(yearNumber),
    balance: parseFloat(balance),
    quantity: parseInt(quantity),
  }
}

// #VER serie vernr verdatum vertext regdatum sign
// #VER A 1 20151231 "BR/RR 2015" 20231213
const rVer = /#VER\s+(\w+)\s+(\d+)\s+(\d{8,8})\s+"([^"]*)"\s+(\d{8,8})(?:\s+(.*))?/

export function parseVer(line: string) {
  const result = line.match(rVer)

  if (!result) {
    console.error(line)
    throw Error('parsing error')
  }

  const [, journal, number, transactionDate, description, entryDate, signature] = result

  return {
    journal,
    number: parseInt(number),
    transactionDate,
    description,
    entryDate,
    signature: signature || null,
  }
}