Hashes Operations

# vibe: 0.2

def merge_defaults(player, defaults)
  defaults.merge(player)
end

def merge_with_override(base, override)
  base.merge(override)
end

def symbolize_report(records)
  report = {}
  records.each do |record|
    report[record[:id]] = {
      name: record[:name],
      raised: record[:raised]
    }
  end
  report
end

def deep_fetch_or(records, player_id)
  record = records.fetch(player_id)
  if record == nil
    return {
      name: "unknown",
      raised: money("0.00 USD")
    }
  end
  display_name = records.dig(player_id, :meta, :display_name)
  if display_name == nil
    display_name = record[:name]
  end
  {
    name: display_name,
    raised: record[:raised]
  }
end

def tally_statuses(players)
  counts = {}
  players.each do |player|
    status = player[:status]
    counts[status] = counts.fetch(status, 0) + 1
  end
  counts
end

def hash_flags(record)
  {
    size: record.size,
    length: record.length,
    empty: record.empty?,
    has_name: record.key?(:name),
    has_goal: record.has_key?(:goal),
    includes_raised: record.include?("raised")
  }
end

def run
  defaults = { status: "active", raised: money("0.00 USD"), goal: money("100.00 USD") }
  player = { name: "Alice", raised: money("75.00 USD") }
  players = [
    { id: 1, name: "Alice", raised: money("50.00 USD"), status: "active" },
    { id: 2, name: "Bob", raised: money("30.00 USD"), status: "complete" }
  ]

  {
    merged: merge_defaults(player, defaults),
    overridden: merge_with_override({ a: 1 }, { a: 2, b: 3 }),
    tally: tally_statuses([
      { status: "active" }, { status: "active" }, { status: "complete" }
    ]),
    flags: hash_flags({ name: "test", goal: 100 })
  }
end