const PartnershipsPage = require("../models/partnerships");
const AUDIT_ACTIONS = require("../constants/auditAction");
const partnershipsConfig = require("../utils/contentEditors/partnershipsConfig");
const createPageContentController = require("./_createPageContentController");
const createRenderSingletonPageView = require("./_renderSingletonPageView");
const { ensureUniqueIds } = require("../utils/contentEditorIds");

function toInquiryField(id, field, type, width) {
  return {
    id,
    label: field?.label || "",
    placeholder: field?.placeholder || "",
    type,
    width,
    required: true,
    options: Array.isArray(field?.options) ? field.options : [],
  };
}

function normalizeInquiryForm(data) {
  if (!data?.inquiryForm) {
    return data;
  }

  if (Array.isArray(data.inquiryForm.fields)) {
    return data;
  }

  const legacyFields = data.inquiryForm.fields || {};

  return {
    ...data,
    inquiryForm: {
      ...data.inquiryForm,
      fields: [
        toInquiryField("firstName", legacyFields.firstName, "text", "half"),
        toInquiryField("lastName", legacyFields.lastName, "text", "half"),
        toInquiryField("organization", legacyFields.organization, "text", "full"),
        toInquiryField(
          "partnershipType",
          legacyFields.partnershipType,
          "select",
          "full",
        ),
        toInquiryField("message", legacyFields.message, "textarea", "full"),
      ].filter((field) => field.label || field.placeholder || field.id),
    },
  };
}

function prepareInquiryPayload(payload) {
  const normalized = normalizeInquiryForm(payload);
  const fields = Array.isArray(normalized?.inquiryForm?.fields)
    ? normalized.inquiryForm.fields
    : [];
  const partners = Array.isArray(normalized?.directory?.partners)
    ? normalized.directory.partners
    : [];

  return {
    ...normalized,
    directory: {
      ...normalized.directory,
      partners: ensureUniqueIds(
        partners,
        (partner) => partner.id,
        (partner, index) => partner.name || partner.category || `partner-${index + 1}`,
        "partner",
      ),
    },
    inquiryForm: {
      ...normalized.inquiryForm,
      fields: ensureUniqueIds(
        fields,
        (field) => field.id,
        (field, index) => field.label || field.placeholder || `field-${index + 1}`,
        "field",
      ).map((field) => ({
        id: field.id,
        label: field.label || "",
        placeholder: field.placeholder || "",
        type: field.type || "text",
        width: field.width || "full",
        required: Boolean(field.required),
        options: Array.isArray(field.options) ? field.options.filter(Boolean) : [],
      })),
    },
  };
}

const controller = createPageContentController({
  model: PartnershipsPage,
  modelName: "PartnershipsPage",
  auditAction: AUDIT_ACTIONS.UPDATE_PARTNERSHIPS,
  editorConfig: partnershipsConfig,
  normalizeForEditor: normalizeInquiryForm,
  normalizeForApi: normalizeInquiryForm,
  preparePayload: prepareInquiryPayload,
});

controller.index = async function index(req, res) {
  try {
    return await createRenderSingletonPageView({
      model: PartnershipsPage,
      editorConfig: partnershipsConfig,
      view: "admin/partnerships/index",
      normalizeForEditor: normalizeInquiryForm,
    })(req, res);
  } catch (error) {
    console.error("partnerships index error:", error);
    req.flash("error_msg", "Error loading Partnerships Management");
    return req.session.save(() => res.redirect("/admin/dashboard"));
  }
};

module.exports = controller;