#!/usr/bin/env node
// scripts/spike-attachment-upload.mjs
//
// One-off SPIKE to validate the CiviCRM file-attachment pipeline before
// we commit to a v1 design for the form's /api/upload endpoint.
//
// We need to know, against THIS Civi instance:
//
//   Q1. Does APIv4 Attachment.create succeed with NO entity binding?
//       (Required for our planned two-step upload pattern: upload first,
//       then reference the returned id from Activity.create on submit.)
//
//   Q2. If Q1 is no, does Attachment.create require entity_table +
//       entity_id at upload time? In that case the activity-bound file
//       fields need a different flow (create empty activity first, attach,
//       then update — or attach to the org contact temporarily).
//
//   Q3. Can we write the returned attachment id as the value of a custom
//       File field on Contact.update? (Test against Food_Co_op_Organizing.
//       Certificate_of_Incorporation specifically.)
//
//   Q4. Can /api/data's existing Contact.get with `.file_name` join read
//       it back correctly?
//
//   Q5. Does Attachment.delete clean it up afterward? (Needed for the
//       teardown step here AND for the future orphan-cleanup Civi job.)
//
// USAGE
//
//   node --env-file=.env.local scripts/spike-attachment-upload.mjs \
//     --org-id=<orgContactId> \
//     [--keep]    # don't delete the test attachment at the end
//
// REQUIRED ENV: CIVI_BASE_URL, CIVI_API_KEY, CIVI_SITE_KEY
//   (plus CIVI_HTTP_AUTH_USER/PASS if Civi sits behind webserver basic auth)

import { Buffer } from "node:buffer";

const args = process.argv.slice(2);
const orgIdArg = args.find((a) => a.startsWith("--org-id="));
const KEEP = args.includes("--keep");
const ORG_ID = orgIdArg ? Number(orgIdArg.slice("--org-id=".length)) : null;

if (!ORG_ID) {
  console.error(
    "Usage: node --env-file=.env.local scripts/spike-attachment-upload.mjs --org-id=<n> [--keep]",
  );
  process.exit(1);
}

const CUSTOM_FIELD = "Food_Co_op_Organizing.Certificate_of_Incorporation";
const TEST_FILENAME = `spike-${Date.now()}.txt`;
const TEST_MIME = "text/plain";
const TEST_BODY = "civi-webform attachment spike — safe to delete";

// ── CiviCRM APIv4 client (matches lib/civicrm.ts) ─────────────────────
async function civi(entity, action, params) {
  const {
    CIVI_BASE_URL,
    CIVI_API_KEY,
    CIVI_SITE_KEY,
    CIVI_HTTP_AUTH_USER,
    CIVI_HTTP_AUTH_PASS,
  } = process.env;
  if (!CIVI_BASE_URL || !CIVI_API_KEY || !CIVI_SITE_KEY) {
    throw new Error("Missing CIVI_BASE_URL / CIVI_API_KEY / CIVI_SITE_KEY.");
  }
  const url = `${CIVI_BASE_URL}/civicrm/ajax/api4/${entity}/${action}`;
  const headers = {
    "Content-Type": "application/x-www-form-urlencoded",
    "X-Civi-Auth": `Bearer ${CIVI_API_KEY}`,
    "X-Civi-Key": CIVI_SITE_KEY,
  };
  if (CIVI_HTTP_AUTH_USER && CIVI_HTTP_AUTH_PASS) {
    headers["Authorization"] =
      "Basic " +
      Buffer.from(`${CIVI_HTTP_AUTH_USER}:${CIVI_HTTP_AUTH_PASS}`).toString(
        "base64",
      );
  }
  const res = await fetch(url, {
    method: "POST",
    headers,
    body: new URLSearchParams({ params: JSON.stringify(params) }),
  });
  const text = await res.text();
  let json;
  try {
    json = JSON.parse(text);
  } catch {
    throw new Error(`${entity}.${action} non-JSON response (HTTP ${res.status}): ${text}`);
  }
  if (!res.ok || json.error_message) {
    throw new Error(
      `${entity}.${action} failed (HTTP ${res.status}): ${json.error_message ?? text}`,
    );
  }
  return json;
}

function divider(label) {
  console.log(`\n── ${label} ${"─".repeat(Math.max(0, 60 - label.length))}`);
}

// ── Q1 / Q2: try Attachment.create both ways and see which Civi accepts.
//
// APIv4 Attachment.create expected params:
//   name, mime_type, content (base64), entity_table?, entity_id?
//
async function tryUnbound() {
  divider("Q1: Attachment.create WITHOUT entity binding");
  try {
    const res = await civi("Attachment", "create", {
      values: {
        name: TEST_FILENAME,
        mime_type: TEST_MIME,
        content: Buffer.from(TEST_BODY, "utf8").toString("base64"),
      },
    });
    console.log("RESULT: success ✓");
    console.log(JSON.stringify(res, null, 2));
    return res.values?.[0]?.id ?? null;
  } catch (err) {
    console.log("RESULT: failed");
    console.log(err.message);
    return null;
  }
}

async function tryBoundToContact() {
  divider(`Q2: Attachment.create BOUND to civicrm_contact id=${ORG_ID}`);
  try {
    const res = await civi("Attachment", "create", {
      values: {
        name: TEST_FILENAME,
        mime_type: TEST_MIME,
        content: Buffer.from(TEST_BODY, "utf8").toString("base64"),
        entity_table: "civicrm_contact",
        entity_id: ORG_ID,
      },
    });
    console.log("RESULT: success ✓");
    console.log(JSON.stringify(res, null, 2));
    return res.values?.[0]?.id ?? null;
  } catch (err) {
    console.log("RESULT: failed");
    console.log(err.message);
    return null;
  }
}

// ── Q3: write the file id as the value of the custom File field on the
// org contact. If the contact already has a certificate, save and restore.
async function testCustomFieldWrite(attachmentId) {
  divider(`Q3: Contact.update writing ${CUSTOM_FIELD} = ${attachmentId}`);

  const before = await civi("Contact", "get", {
    select: ["id", CUSTOM_FIELD, `${CUSTOM_FIELD}.file_name`],
    where: [["id", "=", ORG_ID]],
  });
  const prior = before.values?.[0] ?? {};
  console.log("Prior value on contact:", JSON.stringify(prior, null, 2));

  try {
    const res = await civi("Contact", "update", {
      where: [["id", "=", ORG_ID]],
      values: { [CUSTOM_FIELD]: attachmentId },
    });
    console.log("Update result:", JSON.stringify(res, null, 2));
    console.log("RESULT: success ✓");
    return { ok: true, prior: prior[CUSTOM_FIELD] ?? null };
  } catch (err) {
    console.log("Update failed:", err.message);
    return { ok: false, prior: prior[CUSTOM_FIELD] ?? null };
  }
}

// ── Q4: read back the file via /api/data's join pattern.
async function testReadBack() {
  divider("Q4: Contact.get with .file_name join");
  const res = await civi("Contact", "get", {
    select: ["id", "display_name", CUSTOM_FIELD, `${CUSTOM_FIELD}.file_name`],
    where: [["id", "=", ORG_ID]],
  });
  console.log(JSON.stringify(res, null, 2));
  const row = res.values?.[0];
  if (row && row[CUSTOM_FIELD] && row[`${CUSTOM_FIELD}.file_name`]) {
    console.log("RESULT: file id + filename round-trip works ✓");
  } else {
    console.log("RESULT: round-trip incomplete — see payload above");
  }
}

// ── Q5: clean up.
async function cleanup(attachmentId, restorePriorTo) {
  if (KEEP) {
    console.log("\n--keep set; not deleting attachment", attachmentId);
    return;
  }
  divider("Q5: cleanup");

  // Restore the contact's prior certificate value (so the spike doesn't
  // leave the org pointing at a deleted attachment).
  if (restorePriorTo !== undefined) {
    try {
      await civi("Contact", "update", {
        where: [["id", "=", ORG_ID]],
        values: { [CUSTOM_FIELD]: restorePriorTo },
      });
      console.log(`Restored prior ${CUSTOM_FIELD} value:`, restorePriorTo);
    } catch (err) {
      console.log("Restore failed:", err.message);
    }
  }

  try {
    const res = await civi("Attachment", "delete", {
      where: [["id", "=", attachmentId]],
    });
    console.log(`Attachment.delete id=${attachmentId}:`, JSON.stringify(res));
    console.log("RESULT: cleanup OK ✓");
  } catch (err) {
    console.log("Attachment.delete failed:", err.message);
    console.log(
      `*** MANUAL CLEANUP NEEDED: Attachment id=${attachmentId} is orphaned in CiviCRM ***`,
    );
  }
}

// ── orchestrator ─────────────────────────────────────────────────────
async function main() {
  console.log("CIVI spike — attachment pipeline");
  console.log("Org contact:", ORG_ID);
  console.log("Custom field:", CUSTOM_FIELD);
  console.log("Test file:", TEST_FILENAME);

  let attachmentId = await tryUnbound();
  let restorePriorTo;

  if (!attachmentId) {
    attachmentId = await tryBoundToContact();
    if (!attachmentId) {
      console.log(
        "\nNeither variant of Attachment.create succeeded. Stop here and",
        "investigate Civi permissions / extension version.",
      );
      process.exit(2);
    }
    console.log(
      "\nNOTE: Civi rejected unbound attachment. v1 design must attach",
      "the file to an entity at upload time (cannot decouple upload from",
      "submit). Document this and adjust the plan.",
    );
  }

  const write = await testCustomFieldWrite(attachmentId);
  restorePriorTo = write.prior;
  await testReadBack();
  await cleanup(attachmentId, restorePriorTo);

  console.log("\nSpike complete.");
}

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