module BomForecastReport

# File lib/bom_forecast_report.rb, line 59
def format_current(current)
  return nil unless current

  parts = []
  parts << current[:temperature] if current[:temperature] && !current[:temperature].empty?
  if current[:feels_like] && !current[:feels_like].empty?
    parts << "Feels #{current[:feels_like]}"
  end
  if current[:humidity] && !current[:humidity].empty?
    parts << "Humidity #{current[:humidity]}"
  end
  if current[:wind_direction] && !current[:wind_direction].empty?
    wind = "Wind #{current[:wind_direction]}"
    wind += " #{current[:wind_speed]}" if current[:wind_speed] && !current[:wind_speed].empty?
    parts << wind
  end
  return nil if parts.empty?

  line = "Current: #{parts.join(', ')}"
  line += " (#{current[:observed_at]})" if current[:observed_at] && !current[:observed_at].empty?
  description = format_day_description(current[:description])
  line += ". #{description}" if description
  line
end

# File lib/bom_forecast_report.rb, line 39
def format_day_description(text)
  value = text.to_s.strip
  value.empty? ? nil : value
end

# File lib/bom_forecast_report.rb, line 44
def format_day_line(day)
  parts = [day[:period].to_s]
  parts << day[:condition] if day[:condition]
  if day[:min] && day[:max]
    parts << "Min #{day[:min]} / Max #{day[:max]}"
  elsif day[:max]
    parts << "Max #{day[:max]}"
  elsif day[:min]
    parts << "Min #{day[:min]}"
  end
  description = format_day_description(day[:description] || day[:summary])
  parts << description if description
  parts.join(" — ")
end

# File lib/bom_forecast_report.rb, line 84
def format_report(forecast, current:, days: 1, state: nil)
  lines = []
  lines << weather_banner(place: forecast[:place], issued: forecast[:issued], state: state)

  if current
    today_description = BomForecast.current_forecast_description(forecast[:days])
    current_with_description = today_description ? current.merge(description: today_description) : current
    current_line = format_current(current_with_description)
    lines << current_line if current_line
  end

  filtered_days = BomForecast.filter_forecast_days(forecast[:days], days: days)
  rain_line = BomRainReport.format_rain_forecast(BomForecast.rain_forecast_days(forecast[:days], days: days))

  filtered_days.each do |day|
    lines << format_day_line(day)
  end

  lines << rain_line if rain_line
  lines.compact.join("\n")
end

# File lib/bom_forecast_report.rb, line 21
def issued_banner_text(issued)
  text = issued.to_s.strip
  return "" if text.empty?
  return text if text.match?(/Forecast issued by Bureau of Meteorology/i)

  text.sub(/\AForecast issued at /i, "Forecast issued by Bureau of Meteorology at ")
end

# File lib/bom_forecast_report.rb, line 13
def place_label(place, state = nil)
  name = place.to_s.strip
  return "" if name.empty?

  st = state.to_s.strip
  st.empty? ? name : "#{name} #{st.upcase}"
end

# File lib/bom_forecast_report.rb, line 29
def weather_banner(place: nil, issued: nil, state: nil)
  meta = []
  label = place_label(place, state)
  meta << label unless label.empty?
  issued_text = issued_banner_text(issued)
  meta << issued_text unless issued_text.empty?
  title = meta.empty? ? "Weather" : meta.join(" · ")
  IrcFormat.report_header(tag: "BOM", title: title, style: STYLE_TITLE)
end