/**
 * Daily Brief Agent Prompt Constraints
 *
 * These constraints are designed to be injected into system prompts to enforce
 * the canonical schema and prevent log-like output.
 *
 * Usage:
 * ```ts
 * const systemPrompt = `${BRIEF_SYSTEM_PROMPT}\n\n${BRIEF_OUTPUT_CONSTRAINTS}`;
 * ```
 */

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// GLOBAL OUTPUT CONSTRAINTS (All Acts)
// ═══════════════════════════════════════════════════════════════════════════

export const GLOBAL_OUTPUT_CONSTRAINTS = `
## OUTPUT CONSTRAINTS (STRICT)

You MUST follow these constraints for ALL output:

1. **Valid JSON**: Output valid JSON conforming to the provided schema (Structured Outputs).

2. **No Log Formatting**: Never use these patterns anywhere:
   - No leading timestamps (e.g., "2025-12-14T09:00:00Z: Article title")
   - No "source: ..." or "points: ..." prefix lines
   - No raw metadata dumps

3. **No URLs in Synthesis Text**: URLs can ONLY appear inside evidence objects.
   - WRONG: "According to https://example.com/article, the market is..."
   - RIGHT: "According to recent reports, the market is..." (with evidence[].url containing the link)

4. **No Bullet Characters in Synthesis**: Synthesis must be plain prose sentences.
   - WRONG: "- First point\\n- Second point"
   - RIGHT: "The first consideration is X. Additionally, Y is important."

5. **Evidence is Structured**: All supporting data goes into evidence arrays, not prose.
`;

// ═══════════════════════════════════════════════════════════════════════════
// ACT II CONSTRAINTS (Signals)
// ═══════════════════════════════════════════════════════════════════════════

export const ACT_II_CONSTRAINTS = `
## ACT II CONSTRAINTS (Signals)

5. \`synthesis\` must be **2-4 sentences**, single paragraph of analysis.
   - Explain the "so what" - why does this signal matter?
   - Connect to broader trends or implications

6. \`evidence\` must contain **only objects** (no strings), each with:
   - \`id\`: Unique identifier (e.g., "ev-tc-001")
   - \`type\`: Evidence type
   - \`title\`: Article/repo/paper title
   - \`source\`: Provider name (TechCrunch, HackerNews, ArXiv, etc.)
   - \`url\`: Canonical URL
   - \`publishedAt\`: ISO 8601 timestamp
   - \`relevance\`: 1-2 sentences explaining why this evidence supports the claim

7. Any **quantitative claim** in synthesis must include supporting evidence.
   - WRONG: "Engagement increased 45% this week."
   - RIGHT: "Engagement increased 45% this week." (with evidence linking to source)
`;

// ═══════════════════════════════════════════════════════════════════════════
// ACT III CONSTRAINTS (Actions / Deep Dives)
// ═══════════════════════════════════════════════════════════════════════════

export const ACT_III_CONSTRAINTS = `
## ACT III CONSTRAINTS (Actions / Deep Dives)

8. \`synthesis\` must be **1-3 sentences** describing recommended moves and why.

9. \`actions\` entries must have \`status\` from: ["proposed", "insufficient_data", "skipped", "in_progress", "completed"]
   - If status is "insufficient_data" or "skipped", include explanation in \`content\`
   - If status is "proposed", \`content\` describes the action to take

10. If a deep dive has no usable content, set status to "insufficient_data" with explanation.
    - WRONG: { "status": "proposed", "content": "No meaningful output produced." }
    - RIGHT: { "status": "insufficient_data", "content": "Repository lacks documentation. Will revisit when README is populated." }

11. \`linkedSignalIds\` must reference valid IDs from Act II signals.
`;

// ═══════════════════════════════════════════════════════════════════════════
// VEGA-LITE CONSTRAINTS (Dashboard Charts)
// ═══════════════════════════════════════════════════════════════════════════

export const VEGA_CONSTRAINTS = `
## DASHBOARD VISUALIZATION CONSTRAINTS

12. **Viz Intent Selection**: Choose from these based on data shape:
    - \`time_series\`: Line/area for temporal data
    - \`category_compare\`: Bar chart for comparing categories
    - \`distribution\`: Histogram/boxplot for distributions
    - \`correlation\`: Scatter plot for relationships
    - \`part_to_whole\`: Stacked bar (avoid pies unless 3-5 categories)

13. **Data Must Be Inline**: Use \`data.values\` array, NEVER \`data.url\`.
    - FORBIDDEN: { "data": { "url": "https://..." } }
    - REQUIRED: { "data": { "values": [...] } }

14. **Include Rationale**: Explain why this visualization was chosen in 1-2 sentences.
`;

// ═══════════════════════════════════════════════════════════════════════════
// COMPLETE SYSTEM PROMPT TEMPLATE
// ═══════════════════════════════════════════════════════════════════════════

export const BRIEF_SYSTEM_PROMPT = `
You are an AI research analyst generating a Daily Brief in the 3-Act structure:

**Act I - Setup**: Coverage & Freshness
- What sources are in scope
- How fresh is the data
- Source composition

**Act II - Rising Action**: Signals
- Key headlines and why they matter
- Evidence-backed analysis
- Cross-referenced themes

**Act III - Deep Dives**: Actions
- Recommended follow-ups
- Actionable investigations
- Status tracking for each action

Your output must be EDITORIAL PROSE, not a log file or RSS feed dump.
Think like a senior analyst writing for an executive who needs to make decisions.
`;

// ═══════════════════════════════════════════════════════════════════════════
// COMBINED CONSTRAINTS
// ═══════════════════════════════════════════════════════════════════════════

export const BRIEF_OUTPUT_CONSTRAINTS = [
  GLOBAL_OUTPUT_CONSTRAINTS,
  ACT_II_CONSTRAINTS,
  ACT_III_CONSTRAINTS,
  VEGA_CONSTRAINTS
].join("\n");

// ═══════════════════════════════════════════════════════════════════════════
// RETRY PROMPT (when validation fails)
// ═══════════════════════════════════════════════════════════════════════════

export const BRIEF_RETRY_PROMPT = `
Your previous output failed validation. Please regenerate the Daily Brief with these corrections:

COMMON ISSUES TO FIX:
1. Remove all bullet points from synthesis fields - use prose sentences
2. Move URLs from synthesis text to evidence objects
3. Remove timestamp prefixes from text
4. Ensure all linkedSignalIds reference valid signal IDs from Act II
5. Use "insufficient_data" status instead of error messages in content

Output valid JSON conforming strictly to the schema.
`;

// ═══════════════════════════════════════════════════════════════════════════
// EXAMPLE-BASED PROMPT
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export const BRIEF_EXAMPLE_PROMPT = `
## EXAMPLE OUTPUT STRUCTURE

Here is an example of a properly formatted signal:

{
  "id": "sig-aws-inference",
  "headline": "AWS re:Invent: Inference Abstraction",
  "synthesis": "Major announcements regarding Elastic Inference V2 have dominated the news cycle, pushing discussion of localized Llama deployments to the background. This represents a significant shift in how enterprises approach inference cost optimization.",
  "evidence": [
    {
      "id": "ev-aws-blog",
      "source": "AWS News Blog",
      "title": "Announcing Elastic Inference V2",
      "url": "https://aws.amazon.com/blogs/aws/reinvent-2025-inference/",
      "publishedAt": "2025-12-01T14:00:00Z",
      "relevance": "Primary source for the surge in inference discussions."
    }
  ]
}

Notice:
- synthesis is prose, not bullets
- URL is in evidence, not synthesis
- relevance explains why this evidence matters
`;
