if __name__ == "__main__":
  print("This is a library not an executable.")
  exit(1)


def cleanupXmlName(name):
  nameOut = ""
  for c in name:
    if c in "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+-_.:;/()[]":
      nameOut += c
    else:
      nameOut += f"&#{ord(c)};"
  return nameOut


def cleanupPathName(name):
  nameOut = ""
  for c in name:
    if c in "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+-_.":
      nameOut += c
    else:
      nameOut += "_"
  return nameOut

def formatTime(text):
  if ":" in text:
    return text

  t = ""
  if len(text) >= 2:
    t += text[0:2]

    if len(text) >= 4:
      t += ":" + text[2:4]
      
      if len(text) >= 6:
        t += ":" + text[4:6]
    else:
      t += ":00"
  else:
    t = "__:__"

  return t

def formatDate(text):
  if "." in text:
    return text

  y = text[0:4]
  m = int(text[4:6])
  d = text[6:8]
  
  month = ["___", "Jan", "Feb", "Mar", "Apr", "Mai", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
  if m < 1 or m > 12:
    m = 0

  return f"{d}.{month[m]}.{y}"

class AdiRow:
  def __init__(self):
    self.CALL = ""
    self.Date = ""
    self.Time = ""
    self.Band = ""
    self.MHz = ""
    self.Mode = ""
    self.RST = ""

  def fileName(self, card_name="{_CALL_}_{_Date_}_{_Time_}"):
    return cleanupPathName(self.fillTemplate(card_name))

  def subPath(self):
    name = cleanupPathName(f"{self.CALL}")
    if len(name) >= 2:
      return f"{name[0]}/{name[0:2]}/{name}"
    if len(name) == 1:
      return f"{name}/_/{name}"
    return "_/_/_"

  def fillTemplate(self, template):
    template = template.replace("{_CALL_}", cleanupXmlName(self.CALL))
    template = template.replace("{_Date_}", cleanupXmlName(self.Date))
    template = template.replace("{_Time_}", cleanupXmlName(self.Time))
    template = template.replace("{_Band_}", cleanupXmlName(self.Band))
    template = template.replace("{_MHz_}",  cleanupXmlName(self.MHz))
    template = template.replace("{_Mode_}", cleanupXmlName(self.Mode))
    template = template.replace("{_RST_}",  cleanupXmlName(self.RST))
    return template

  def isValid(self):
    return self.CALL != "" and self.Date != "" and self.Time != ""

  def setValue(self, k, v):
    k = k.upper()
    if k == "CALL":
      self.CALL = v
    elif k == "QSO_DATE":
      self.Date = formatDate(v)
    elif k == "TIME_ON":
      self.Time = formatTime(v)
    elif k == "BAND":
      self.Band = v
    elif k == "FREQ":
      self.MHz = v
    elif k == "MODE":
      self.Mode = v
    elif k == "RST_SENT":
      self.RST = v
    

  def guessBand(self, freq=None):
    bands = [ ("160m",  1.8,   2.0)
            , ( "80m",  3.5,   3.8)
            , ( "60m",  5.3,   5.4)
            , ( "40m",  7.0,   7.2)
            , ( "30m", 10.1,  10.2)
            , ( "20m", 14.0,  14.5)
            , ( "17m", 18.0,  18.2)
            , ( "15m", 21.0,  21.5)
            , ( "12m", 24.0,  25.0)
            , ( "10m", 28.0,  29.7)
            , (  "6m",  50.0,  52.0)
            , (  "4m",  70.0,  70.3)
            , (  "2m", 144.0, 146.0)
            , ("70cm", 430.0, 440.0)
            ]

    if self.Band != "":
      return

    if freq is None:
      freq = self.MHz

    try:
      freq = float(freq.replace(",","."))
    except:
      return

    for (name, lower, upper) in bands:
      if freq >= lower and freq <= upper:
        self.Band = name
        return



def parseRow(row):
  state = 0
  key = ""
  value = ""
  adiRow = AdiRow()
  while row != "":
    c = row[0]
    row = row[1:]
    if state == 0:
      if c == '<':
        state = 1
        key = ""
    else:
      if c != ">":
        key += c
      else:
        state = 0
        pair = key.split(":")
        if len(pair) != 2:
          continue

        key = pair[0]
        try:
          size = int(pair[1])
          if size < 1 or size > 100:
            continue
          value = row[0:size]
          row = row[(size+1):]
          adiRow.setValue(key, value)
        finally:
          pass
          
  if adiRow.isValid():
    adiRow.guessBand()
    return adiRow

  return None


def loadAdi(fileName):
  adiText = ""
  with open(fileName) as f:
    adiText = f.read()

  adi = adiText.split("<EOH>")
  if len(adi) < 2:
    return None

  adi = "<EOH>".join(adi[1:])
  data = []
  for row in adi.split("<EOR>"):
    row = parseRow(row)
    if row is not None:
      data.append(row)

  return data