#!/usr/bin/env node

/**
 * Import Baby Ghosts Coop Foundations Curriculum into Outline wiki.
 *
 * - 9 session pages → top-level in "Cooperative Foundations" collection
 * - 10 PS Guide pages → nested under "Peer Support Playbook" parent doc
 * - Cross-links added between paired session/PS Guide pages
 *
 * Usage:
 *   OUTLINE_URL=https://wiki.ghostguild.org OUTLINE_API_TOKEN=<token> node scripts/import-curriculum.js
 */

import fs from "fs/promises";
import path from "path";
import { fileURLToPath } from "url";

const __dirname = path.dirname(fileURLToPath(import.meta.url));

const OUTLINE_URL = process.env.OUTLINE_URL;
const OUTLINE_API_TOKEN = process.env.OUTLINE_API_TOKEN;
const RATE_LIMIT_MS = 200;

const SESSIONS_DIR = path.resolve(__dirname, "../content/curriculum/Sessions");
const PS_GUIDES_DIR = path.resolve(__dirname, "../content/curriculum/PS Guides");

if (!OUTLINE_URL || !OUTLINE_API_TOKEN) {
  console.error("Error: OUTLINE_URL and OUTLINE_API_TOKEN env vars are required.");
  process.exit(1);
}

// --- API helper (same pattern as migrate-content.js) ---

async function outlineApi(endpoint, body) {
  const res = await fetch(`${OUTLINE_URL}/api/${endpoint}`, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      Authorization: `Bearer ${OUTLINE_API_TOKEN}`,
    },
    body: JSON.stringify(body),
  });

  if (!res.ok) {
    const text = await res.text();
    throw new Error(`API ${endpoint} failed (${res.status}): ${text}`);
  }

  return res.json();
}

function delay(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

// --- Session files in order ---

const SESSION_FILES = [
  "Session 0 – Kickoff + Onboarding.md",
  "Session 1 – Coop Principles and Power.md",
  "Session 2 – Shared Purpose and Alignment.md",
  "Session 3 – Actionable Values and Impact.md",
  "Session 4 – Decision-Making in Practice.md",
  "Session 5 – Coop Structures and Governance.md",
  "Session 6 – Equitable Economics.md",
  "Session 7 – Conflict Resolution and Collective Care.md",
  "Session 8 – Self-Evaluation and Pathways.md",
];

// --- PS Guide files with explicit titles ---

const PS_GUIDE_FILES = [
  {
    file: "pre-program-onboarding-and-prep.md",
    title: "Pre-program: Onboarding and Prep",
    sessionIndex: null, // no cross-link pair
  },
  {
    file: "0-kickoff-onboarding.md",
    title: "PS Guide: Session 0 — Kickoff + Onboarding",
    sessionIndex: 0,
  },
  {
    file: "1-coop-principles-power.md",
    title: "PS Guide: Session 1 — Coop Principles and Power",
    sessionIndex: 1,
  },
  {
    file: "2-shared-purpose-alignment.md",
    title: "PS Guide: Session 2 — Shared Purpose and Alignment",
    sessionIndex: 2,
  },
  {
    file: "3-actionable-values-impact.md",
    title: "PS Guide: Session 3 — Actionable Values and Impact",
    sessionIndex: 3,
  },
  {
    file: "4-decision-making-in-practice.md",
    title: "PS Guide: Session 4 — Decision-Making in Practice",
    sessionIndex: 4,
  },
  {
    file: "5-coop-structures-governance.md",
    title: "PS Guide: Session 5 — Coop Structures and Governance",
    sessionIndex: 5,
  },
  {
    file: "6-equitable-economics.md",
    title: "PS Guide: Session 6 — Equitable Economics",
    sessionIndex: 6,
  },
  {
    file: "7-conflict-resolution-collective-care.md",
    title: "PS Guide: Session 7 — Conflict Resolution and Collective Care",
    sessionIndex: 7,
  },
  {
    file: "8-self-evaluation-pathways.md",
    title: "PS Guide: Session 8 — Self-Evaluation and Pathways",
    sessionIndex: 8,
  },
];

// --- Content helpers ---

/** Strip the H1 line from markdown content. */
function stripH1(text) {
  return text.replace(/^# .+\n+/, "");
}

/**
 * Remove PS reference lines that appear near the top of session pages.
 * Handles both italic and non-italic variants:
 *   *Peer Supports: See **PS Guide: Session N** for pre-session tasks.*
 *   Peer Supports: See **PS Guide: Session N** for pre-session tasks.
 * Also removes an empty "## Pre-session" heading left behind.
 */
function stripPsReference(text) {
  // Remove the PS reference line itself
  let result = text.replace(
    /^\*?Peer Supports: See \*\*PS Guide: Session \d\*\* for pre-session tasks\.\*?\n+/m,
    ""
  );
  // Remove empty "## Pre-session" section (heading followed only by --- or whitespace)
  result = result.replace(/^## Pre-session\n+(?=---)/m, "");
  return result;
}

// --- Main ---

async function main() {
  // ============================================================
  // Phase 1: Find existing collection and parent document
  // ============================================================

  console.log("Phase 1: Finding collection and parent document...\n");

  const { data: collections } = await outlineApi("collections.list", { limit: 100 });
  const collection = collections.find(
    (c) => c.name.toLowerCase() === "cooperative foundations"
  );
  if (!collection) {
    console.error('Error: Collection "Cooperative Foundations" not found.');
    process.exit(1);
  }
  console.log(`  Collection: ${collection.name} (${collection.id})`);
  await delay(RATE_LIMIT_MS);

  const { data: searchResults } = await outlineApi("documents.search", {
    query: "Peer Support Playbook",
    collectionId: collection.id,
    limit: 5,
  });
  const parentDoc = searchResults.find(
    (r) => r.document.title === "Peer Support Playbook"
  );
  if (!parentDoc) {
    console.error('Error: Document "Peer Support Playbook" not found in collection.');
    process.exit(1);
  }
  const parentDocId = parentDoc.document.id;
  console.log(`  Parent doc: Peer Support Playbook (${parentDocId})\n`);
  await delay(RATE_LIMIT_MS);

  // ============================================================
  // Phase 2: Import 9 session pages
  // ============================================================

  console.log("Phase 2: Importing session pages...\n");

  const sessions = []; // { id, slug, title }

  for (const file of SESSION_FILES) {
    const raw = await fs.readFile(path.join(SESSIONS_DIR, file), "utf-8");

    // Extract H1 as title
    const h1Match = raw.match(/^# (.+)$/m);
    const title = h1Match ? h1Match[1] : path.basename(file, ".md");

    // Strip H1 and PS reference from body
    let body = stripH1(raw);
    body = stripPsReference(body);

    const { data: doc } = await outlineApi("documents.create", {
      title,
      text: body.trim(),
      collectionId: collection.id,
      publish: true,
    });

    sessions.push({ id: doc.id, slug: doc.url.split("/doc/")[1], title });
    console.log(`  ✓ ${title}`);
    await delay(RATE_LIMIT_MS);
  }

  // ============================================================
  // Phase 3: Import 10 PS Guide pages
  // ============================================================

  console.log("\nPhase 3: Importing PS Guide pages...\n");

  const psGuides = []; // { id, slug, title, sessionIndex }

  for (const entry of PS_GUIDE_FILES) {
    const raw = await fs.readFile(path.join(PS_GUIDES_DIR, entry.file), "utf-8");

    // Strip H1 from body
    const body = stripH1(raw);

    const { data: doc } = await outlineApi("documents.create", {
      title: entry.title,
      text: body.trim(),
      collectionId: collection.id,
      parentDocumentId: parentDocId,
      publish: true,
    });

    psGuides.push({
      id: doc.id,
      slug: doc.url.split("/doc/")[1],
      title: entry.title,
      sessionIndex: entry.sessionIndex,
    });
    console.log(`  ✓ ${entry.title}`);
    await delay(RATE_LIMIT_MS);
  }

  // ============================================================
  // Phase 4: Add cross-links
  // ============================================================

  console.log("\nPhase 4: Adding cross-links...\n");

  for (const psGuide of psGuides) {
    if (psGuide.sessionIndex === null) continue; // skip pre-program

    const session = sessions[psGuide.sessionIndex];
    if (!session) {
      console.error(`  ✗ No session found for index ${psGuide.sessionIndex}`);
      continue;
    }

    // Update session page: prepend PS Guide link
    const { data: sessionDoc } = await outlineApi("documents.info", { id: session.id });
    await delay(RATE_LIMIT_MS);

    const sessionCrossLink = `> **Peer Supports:** See [${psGuide.title}](/doc/${psGuide.slug}) for your role during session and this week's studio support meeting.\n\n`;

    await outlineApi("documents.update", {
      id: session.id,
      text: sessionCrossLink + sessionDoc.text,
    });
    console.log(`  ✓ ${session.title} → ${psGuide.title}`);
    await delay(RATE_LIMIT_MS);

    // Update PS Guide page: prepend session link
    const { data: psDoc } = await outlineApi("documents.info", { id: psGuide.id });
    await delay(RATE_LIMIT_MS);

    const psCrossLink = `> **Session content:** See [${session.title}](/doc/${session.slug}) for the full curriculum.\n\n`;

    await outlineApi("documents.update", {
      id: psGuide.id,
      text: psCrossLink + psDoc.text,
    });
    console.log(`  ✓ ${psGuide.title} → ${session.title}`);
    await delay(RATE_LIMIT_MS);
  }

  console.log(`\nDone. ${sessions.length} sessions + ${psGuides.length} PS Guides imported.`);
}

main().catch((err) => {
  console.error("Import failed:", err);
  process.exit(1);
});