module SunbusFormat

# File lib/sunbus/format.rb, line 126
def format_alerts(items, region:)
  label = SunbusConfig.region_label(region)
  body = if items.empty?
           ["No active bus service alerts."]
         else
           items.map do |row|
             severity = row[:description].to_s.strip
             severity.empty? ? row[:title] : "#{row[:title]} — #{severity}"
           end
         end
  IrcReply.card(
    tag: "SUNBUS",
    title: "Alerts · #{label}",
    body_lines: body,
    footer_parts: items.empty? ? nil : ["TransLink RSS", label],
    heading_style: STYLE_TITLE
  )
end

# File lib/sunbus/format.rb, line 97
def format_connecting_trip(result, region:, service_date: nil, day_offset: 0)
  label = SunbusConfig.region_label(region)
  title = trip_title(result, service_date: service_date, day_offset: day_offset)
  body = []
  result[:legs].each_with_index do |leg, index|
    route = leg[:route_short_name].to_s.empty? ? "service" : "route #{leg[:route_short_name]}"
    body << "Depart — #{leg[:depart]} (#{route})"
    if index < result[:legs].length - 1
      transfer = result[:transfer_stop]
      body << "Arrive — #{leg[:arrive]} — change at #{transfer[:name]}"
    else
      body << "Arrive — #{leg[:arrive]}"
    end
  end
  transfers = result[:legs].length - 1
  body << "Duration — #{result[:duration_min]} min · #{transfers} transfer#{transfers == 1 ? '' : 's'}"
  IrcReply.card(
    tag: "SUNBUS",
    title: title,
    body_lines: body,
    footer_parts: ["GTFS schedule · connecting", label],
    heading_style: STYLE_TITLE
  )
end

# File lib/sunbus/format.rb, line 145
def format_notices(items, region:)
  label = SunbusConfig.region_label(region)
  body = if items.empty?
           ["No service notices for this region."]
         else
           items.map.with_index(1) do |row, index|
             text = row[:title]
             desc = TextUtil.squish(row[:description])
             text += " — #{desc}" unless desc.empty?
             "#{index}. #{text[0, 180]}"
           end
         end
  IrcReply.card(
    tag: "SUNBUS",
    title: "Notices · #{label}",
    body_lines: body,
    footer_parts: items.empty? ? nil : ["TransLink RSS", label],
    heading_style: STYLE_TITLE
  )
end

# File lib/sunbus/format.rb, line 122
def format_ringroad(result)
  SunbusRingRoad.format_report(**result)
end

# File lib/sunbus/format.rb, line 22
def format_stops(stops, query:, region:)
  label = SunbusConfig.region_label(region)
  body = stops.empty? ? ["No stops found."] : stops.map.with_index(1) { |row, index| "#{index}. #{row[:name]} (#{row[:stop_id]})" }
  footer = stops.empty? ? nil : ["GTFS schedule", label]
  IrcReply.card(
    tag: "SUNBUS",
    title: "Stops · #{query} · #{label}",
    body_lines: body,
    footer_parts: footer,
    heading_style: STYLE_TITLE
  )
end

# File lib/sunbus/format.rb, line 35
def format_suburb_stops(stops, suburb:, region:)
  label = SunbusConfig.region_label(region)
  title = TextUtil.title_words(suburb)
  body = stops.empty? ? ["No stops found in this suburb."] : stops.map.with_index(1) { |row, index| "#{index}. #{row[:name]} (#{row[:stop_id]})" }
  footer = stops.empty? ? nil : ["#{stops.length} stops · GTFS schedule", label]
  IrcReply.card(
    tag: "SUNBUS",
    title: "Suburb · #{title} · #{label}",
    body_lines: body,
    footer_parts: footer,
    heading_style: STYLE_TITLE
  )
end

# File lib/sunbus/format.rb, line 49
def format_times(stop_name:, rows:, region:, service_date: nil, day_offset: 0)
  label = SunbusConfig.region_label(region)
  title = times_title(stop_name, service_date: service_date, day_offset: day_offset)
  if rows.empty?
    return IrcReply.card(
      tag: "SUNBUS",
      title: title,
      body_lines: ["No upcoming departures found for this stop."],
      heading_style: STYLE_TITLE
    )
  end

  lines = rows.map do |row|
    route = row[:route_short_name].to_s.empty? ? "service" : "route #{row[:route_short_name]}"
    dest = row[:headsign].to_s.empty? ? "" : " to #{row[:headsign]}"
    delay = row[:delay_sec].to_i.positive? ? " (+#{row[:delay_sec] / 60}m)" : ""
    live = row[:live] ? " live" : ""
    "#{row[:departure_time]} — #{route}#{dest}#{live}#{delay}"
  end
  source = rows.any? { |row| row[:live] } ? "GTFS-RT + schedule" : "GTFS schedule"
  IrcReply.card(
    tag: "SUNBUS",
    title: title,
    body_lines: lines,
    footer_parts: [source, label],
    heading_style: STYLE_TITLE
  )
end

# File lib/sunbus/format.rb, line 78
def format_trip(result, region:, service_date: nil, day_offset: 0)
  return format_connecting_trip(result, region: region, service_date: service_date, day_offset: day_offset) if result[:connecting]

  label = SunbusConfig.region_label(region)
  title = trip_title(result, service_date: service_date, day_offset: day_offset)
  route = result[:route_short_name].to_s.empty? ? "service" : "route #{result[:route_short_name]}"
  IrcReply.card(
    tag: "SUNBUS",
    title: title,
    body_lines: [
      "Depart — #{result[:depart]} (#{route})",
      "Arrive — #{result[:arrive]}",
      "Duration — #{result[:duration_min]} min"
    ],
    footer_parts: ["GTFS schedule", label],
    heading_style: STYLE_TITLE
  )
end

# File lib/sunbus/format.rb, line 166
def help_reply
  IrcReply.card(
    tag: "SUNBUS",
    title: "Townsville & Cairns buses",
    body_lines: [
      "!sunbus times <stop> [tsv|cairns] — next departures",
      "!sunbus from <origin> to <dest> — scheduled trip (with transfers)",
      "!sunbus stop <name> — search stops",
      "!sunbus suburb <name> — list stops in a suburb",
      "!sunbus alerts [tsv|cairns] — bus service status (RSS)",
      "!sunbus notices [tsv|cairns] — service notices (RSS)",
      "!sunbus ringroad — Townsville Ring Road drive time in one go",
      "!sunbus help — this message"
    ],
    footer_parts: ["TransLink GTFS · RSS", "Kinetic Sunbus"],
    heading_style: STYLE_TITLE
  )
end

# File lib/sunbus/format.rb, line 194
def schedule_title(label, name, service_date:, day_offset:)
  base = label.to_s.strip.empty? ? name.to_s : "#{label} · #{name}"
  return base if day_offset.to_i <= 0 || service_date.nil?

  "#{base} · #{SunbusDayLookup.format_service_date(service_date)}"
end

# File lib/sunbus/format.rb, line 185
def times_title(name, service_date:, day_offset:)
  schedule_title("Times", name, service_date: service_date, day_offset: day_offset)
end

# File lib/sunbus/format.rb, line 189
def trip_title(result, service_date:, day_offset:)
  base = "#{result[:from_stop][:name]} to #{result[:to_stop][:name]}"
  schedule_title(nil, base, service_date: service_date, day_offset: day_offset)
end