module ThemeGenerate

# File lib/theme_generate.rb, line 47
def from_seed(seed)
  seed_text = seed.to_s.empty? ? "default" : seed.to_s
  digest = Digest::SHA256.hexdigest(seed_text)
  bytes = digest.bytes

  width = WIDTHS[bytes[0] % WIDTHS.length]
  box = BOX_STYLES[bytes[1] % BOX_STYLES.length]
  palette = PALETTES[bytes[2] % PALETTES.length]
  slug = "gen-#{digest[0, 8]}"

  title_fg, title_bg = palette[:title]
  total_fg, total_bg = palette[:accent]
  card_fg = palette[:tag][0]
  card_bg = palette[:title][1] || palette[:title][0]
  tag_fg = palette[:tag][0]
  tag_bg = palette[:tag][1]
  count_fg = palette[:count][0]
  count_bg = palette[:count][1]

  {
    id: slug,
    name: generated_name(seed_text, bytes),
    width: width,
    palette: palette,
    frame: {
      header_doodle: box[:header],
      footer_doodle: box[:footer],
      separator: box[:separator]
    },
    paint_rules: ThemeCatalog.paint_rules_for_palette(palette)
  }
end

# File lib/theme_generate.rb, line 80
def generated_name(seed_text, bytes)
  adjectives = %w[Crimson Azure Amber Obsidian Violet Coral Slate Indigo]
  nouns = %w[Frame Banner Slot Pack Margin Neon Pulse Strip Arc]
  adj = adjectives[bytes[3] % adjectives.length]
  noun = nouns[bytes[4] % nouns.length]
  label = seed_text.length > 20 ? seed_text[0, 20] : seed_text
  "#{adj} #{noun} (#{label})"
end