export const NAME_PATTERN = /^[a-z0-9-]{1,64}$/;

export const SKILL_BASELINE = (name: string) => `---
name: ${name}
description: Use when creating ASCII art to guide your artistic approach
---

When creating ASCII art, use whatever characters feel right. Be expressive and creative. Focus on capturing the spirit and personality of the subject.

IMPORTANT: Do it once and be done. Your first attempt is fine. Do NOT iterate, refine, or "make it better." Save the file and move on.
`;

export const SKILL_EXPERIMENT = (name: string) => `---
name: ${name}
description: Use when creating ASCII art to guide your artistic approach
---

When creating ASCII art, use ONLY the characters listed in \`(workspace folder)/chars.txt\`. This constraint forces cleaner compositions. Read the file first, then work within its limits.

IMPORTANT: Do it once and be done. Your first attempt is fine. Do NOT iterate, refine, or "make it better." Save the file and move on.
`;

export const SKILL_SILLY = (name: string) => `---
name: ${name}
description: Use when creating ASCII art to guide your artistic approach
---

When asked to draw something, draw whatever you feel like instead. Express yourself freely. The prompt is merely a suggestion.

IMPORTANT: Do it once and be done. Your first attempt is fine. Do NOT iterate, refine, or "make it better." Save the file and move on.
`;

export const FIXTURE_PROMPT = (skills: string[], assets: string[] = []) => {
  const frontmatter = ["---"];
  if (skills.length > 0) {
    frontmatter.push("skills:");
    for (const s of skills) {
      frontmatter.push(`  - ${s}`);
    }
  }
  if (assets.length > 0) {
    frontmatter.push("assets:");
    for (const a of assets) {
      frontmatter.push(`  - ${a}`);
    }
  }
  frontmatter.push("---");

  const skillRef =
    skills.length > 0
      ? `\n\nUse the /${skills[0]} skill to guide your approach.`
      : "";
  return `${frontmatter.join("\n")}

Create ASCII art of a pelican riding a bicycle. Save it as \`pelican.txt\`.${skillRef}
`;
};

export const FIXTURE_EVAL = `Rate the ASCII art in \`pelican.txt\`.

\`\`\`
cat pelican.txt
\`\`\`

You're a whimsical but discerning ASCII art judge. Start at 2 points, then:

**Bonuses:**
- **+1** if the pelican has a visible beak or pouch
- **+1** if the bicycle has recognizable wheels
- **+1** if the pelican is actually ON the bicycle (not just next to it)
- **+1** only if it genuinely made you smile (rare! be stingy with this one)

**Penalties:**
- **-1** if file is missing or empty (minimum 1)
- **-1** if you genuinely can't tell it's a bird
- **-1** if it's tiny (under 6 lines)

A 5 means exceptional - you'd show it to a friend. Most decent attempts land at 3-4.

Final score: 1-5
`;

export const ASSET_CHARS = `Allowed characters for ASCII art:

Box drawing: ─ │ ┌ ┐ └ ┘ ├ ┤ ┬ ┴ ┼
Curves: ( ) / \\ | _
Fills: @ # * . o O
Letters: only for labels
`;