#!/usr/bin/env ruby

require 'sqlite3'

int = Proc.new do  |x|
  x.to_i
end
float = Proc.new do |x|
  x.to_f
end
str = Proc.new do |x|
  x.to_s
end
common_conv = { "db" => str, "timestamp"=>float, "device_type"=>str, "device_id"=>str, "battery" => int, "rssi" => int }
rain_conv = {"rain_rate"=>float, "rain_total"=>float}.merge(common_conv)
wind_conv = {"chill"=>float, "temperature"=>float,"average_speed"=>float,"direction"=>int,"gust"=>float}.merge(common_conv)
temp_conv = {"humidity"=>float, "humidity_status"=>str,"humidity_status_numeric"=>int,"temperature"=>float}.merge(common_conv)
conv = { "rain" => rain_conv, "wind" => wind_conv, "temp" => temp_conv }

$db = SQLite3::Database.new("weather.db")

def parse_to_hash s, conv
  h = {}
  s.split("\t").map { |i| i=i.split("::"); h[i[0]] = conv[i[0]].call(i[1]) }
  return h
end

def db_execute s, d
  begin
    $db.execute(s, d)
    rescue SQLite3::BusyException
      sleep 3
      begin
        $db.execute(s, d)
      rescue SQLite3::BusyException
        STDERR.write "db busy, skipping data point '#{d.to_s}'\n"
      end
  end
end

def insert_rain h
  #db::rain  type::PCR800  device_id::eb:00  battery::9  rain_rate::0.0  rain_total::0.9 rssi::6
  db_execute("INSERT INTO rain(timestamp, device_type, device_id, battery, rssi, rain_rate, rain_total) VALUES(?,?,?,?,?,?,?)", [h["timestamp"], h["device_type"],h["device_id"], h["battery"], h["rssi"], h["rain_rate"], h["rain_total"]])
end

def insert_wind h
  # db::wind  type::WGR800  device_id::04:00  battery::9  chill::0.0  rssi::5 temperature::0.0  average_speed::0.0  direction::270gust::0.0
  db_execute("INSERT INTO wind(timestamp, device_type, device_id, battery, rssi, chill, temperature, average_speed, direction, gust) VALUES(?,?,?,?,?,?,?,?,?,?)", [h["timestamp"], h["device_type"],h["device_id"], h["battery"], h["rssi"], h["chill"], h["temperature"], h["average_speed"], h["direction"], h["gust"]])
end

def insert_temp h
  #db::temp  type::THGR810, THGN800  device_id::10:02  battery::9  humidity::80  humidity_status::wet  humidity_status_numeric::3  rssi::5 temperature::2.6
  #db::temp  type::THGR810, THGN800  device_id::25:01  battery::0  humidity::94  humidity_status::wet  humidity_status_numeric::3  rssi::6 temperature::1.1
  db_execute("INSERT INTO temp(timestamp, device_type, device_id, battery, rssi, humidity, humidity_status, humidity_status_numeric, temperature) VALUES(?,?,?,?,?,?,?,?,?)",[h["timestamp"], h["device_type"],h["device_id"], h["battery"], h["rssi"], h["humidity"], h["humidity_status"], h["humidity_status_numeric"], h["temperature"]])
end

while line = STDIN.gets
  break if line.strip=="stop"
  db = line.split("\t").first.split("::")[1]
  h = parse_to_hash(line, conv[db])
  if db   == "rain"
    insert_rain h
  elsif db == "wind"
    insert_wind h
  elsif db == "temp"
    insert_temp h
  end
end

$db.close