module RecipeHistory

# File lib/recipe_history.rb, line 11
def last_history_entry(network:, channel:, store: RabbotDb)
  selectable_entries(network: network, channel: channel, store: store).last
end

# File lib/recipe_history.rb, line 70
def normalize_history_text(text)
  plain = AiChannelLog.strip_irc_codes(text).strip
  plain = AiChannelLog.plain_log_text(plain) if AiChannelLog.agent_answer_card?(plain)
  plain.sub(/\A(?:\[[^\]]+\]|«[^»]+»)\s*/, "").strip
end

# File lib/recipe_history.rb, line 21
def parse_history_text(text)
  plain = normalize_history_text(text)
  parts = plain.split("|", 3).map(&:strip)

  if parts.length == 3 && parts.all? { |part| !part.empty? }
    return { title: parts[0], ingredients: parts[1], instructions: parts[2] }
  end

  if parts.length == 2 && parts.all? { |part| !part.empty? }
    return { title: parts[0], ingredients: parts[1], instructions: "" }
  end

  lines = plain.split("\n", -1).map(&:strip).reject(&:empty?)
  return { title: "", ingredients: "", instructions: "" } if lines.empty?

  if lines.length == 1
    line = lines.first
    return { title: line, ingredients: "", instructions: line }
  end

  {
    title: lines.first,
    ingredients: "",
    instructions: lines.drop(1).join("\n")
  }
end

# File lib/recipe_history.rb, line 48
def plan_add_from_last_history(network:, channel:, store: RabbotDb)
  entry = last_history_entry(network: network, channel: channel, store: store)
  return { error: NO_HISTORY_MESSAGE } unless entry

  parsed = parse_history_text(entry[:text])
  return { error: NO_HISTORY_MESSAGE } if parsed[:title].to_s.strip.empty?

  {
    title: parsed[:title],
    ingredients: parsed[:ingredients],
    instructions: parsed[:instructions],
    source_nick: entry[:nick]
  }
end

# File lib/recipe_history.rb, line 15
def selectable_entries(network:, channel:, store: RabbotDb)
  AiChannelLog.entries(network: network, channel: channel, store: store).reject do |entry|
    entry[:is_command] || entry[:from_bot]
  end
end

# File lib/recipe_history.rb, line 63
def source_label(source_nick)
  nick = source_nick.to_s.strip
  return "channel_history" if nick.empty?

  "channel_history:#{nick}"
end