#!/usr/bin/env node
// scripts/spike-file-upload.mjs
//
// Supersedes spike-attachment-upload.mjs. The earlier spike showed APIv4
// Attachment.create is not exposed on this Civi instance, but APIv4
// `File` and `EntityFile` ARE present, and APIv3 Attachment is reachable
// as a fallback.
//
// CiviCRM custom file fields store the file id directly in the custom
// column on the entity's custom-value table -- the EntityFile linkage
// table is only needed for general attachments (e.g. on an Activity's
// "Attachments" tab). So for our form's custom-field-bound files we
// only need:
//
//     File row in civicrm_file       <-- File.create
//     │
//     │   (file id stored directly as the custom field value)
//     ▼
//   Custom field on the entity      <-- Contact.update / Activity.create
//
// This spike confirms that pipeline end-to-end on a real org contact.
//
// USAGE
//   node --env-file=.env.local scripts/spike-file-upload.mjs --org-id=<n> [--keep]

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-file-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 file spike — safe to delete";

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 (HTTP ${res.status}): ${text}`);
  }
  if (!res.ok || json.error_message) {
    throw new Error(`${entity}.${action} HTTP ${res.status}: ${json.error_message ?? text}`);
  }
  return json;
}

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

// ── Q1: what fields does APIv4 File.create accept on this Civi?
divider("Q1: File.getFields");
const fields = await civi("File", "getFields", { action: "create" });
const fieldNames = (fields.values ?? []).map((f) => f.name);
console.log("File create-action fields:", fieldNames.join(", "));
const acceptsContent = fieldNames.includes("content");
console.log(`Accepts 'content' param: ${acceptsContent ? "yes ✓" : "NO -- must POST file differently"}`);

if (!acceptsContent) {
  console.log(
    "\nFile.create on this Civi doesn't accept inline content. The upload path",
    "needs to use a different mechanism (likely the legacy APIv3 Attachment.create",
    "or the civicrm/upload endpoint). Stopping spike to avoid guessing.",
  );
  process.exit(2);
}

// ── Q2: create a File row.
divider("Q2: File.create with base64 content");
const created = await civi("File", "create", {
  values: {
    file_name: TEST_FILENAME,
    mime_type: TEST_MIME,
    content: Buffer.from(TEST_BODY, "utf8").toString("base64"),
  },
});
const fileId = created.values?.[0]?.id;
console.log("File.create result:", JSON.stringify(created, null, 2));
if (!fileId) {
  console.log("RESULT: failed — no id returned");
  process.exit(2);
}
console.log(`RESULT: file id = ${fileId} ✓`);

// ── Q3: read current value, write file id to custom field, read back.
divider(`Q3: Contact.update ${CUSTOM_FIELD} = ${fileId}`);
const before = await civi("Contact", "get", {
  select: ["id", CUSTOM_FIELD, `${CUSTOM_FIELD}.file_name`],
  where: [["id", "=", ORG_ID]],
});
const priorRow = before.values?.[0] ?? {};
const priorValue = priorRow[CUSTOM_FIELD] ?? null;
console.log("Prior value on contact:", JSON.stringify(priorRow, null, 2));

let writeOk = false;
try {
  const upd = await civi("Contact", "update", {
    where: [["id", "=", ORG_ID]],
    values: { [CUSTOM_FIELD]: fileId },
  });
  console.log("Update result:", JSON.stringify(upd, null, 2));
  writeOk = true;
  console.log("RESULT: write OK ✓");
} catch (err) {
  console.log(`Update failed: ${err.message}`);
}

// ── Q4: read back through the join /api/data uses.
if (writeOk) {
  divider("Q4: read-back via Contact.get + .file_name join");
  const after = await civi("Contact", "get", {
    select: ["id", "display_name", CUSTOM_FIELD, `${CUSTOM_FIELD}.file_name`],
    where: [["id", "=", ORG_ID]],
  });
  console.log(JSON.stringify(after, null, 2));
  const row = after.values?.[0];
  if (row && Number(row[CUSTOM_FIELD]) === Number(fileId) && row[`${CUSTOM_FIELD}.file_name`]) {
    console.log("RESULT: round-trip OK ✓ — pipeline is viable");
  } else {
    console.log("RESULT: read-back incomplete or id mismatch — see payload");
  }
}

// ── Cleanup: restore prior value, delete file row.
if (KEEP) {
  console.log(`\n--keep set; leaving file id=${fileId} and contact pointing at it.`);
} else {
  divider("Cleanup: restore prior contact value + File.delete");
  try {
    await civi("Contact", "update", {
      where: [["id", "=", ORG_ID]],
      values: { [CUSTOM_FIELD]: priorValue },
    });
    console.log(`Restored ${CUSTOM_FIELD} = ${priorValue}`);
  } catch (err) {
    console.log("Restore failed:", err.message);
  }
  try {
    const del = await civi("File", "delete", { where: [["id", "=", fileId]] });
    console.log(`File.delete id=${fileId}:`, JSON.stringify(del));
    console.log("Cleanup OK ✓");
  } catch (err) {
    console.log("File.delete failed:", err.message);
    console.log(`*** MANUAL CLEANUP NEEDED: File id=${fileId} is orphaned in CiviCRM ***`);
  }
}

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