function escapeHtml(str) {
    var div = document.createElement("div");
    div.appendChild(document.createTextNode(String(str)));
    return div.innerHTML;
}

function isValidTestEventCode(code) {
    return /^[A-Za-z0-9_]+$/.test(code);
}

window.fbAsyncInit = function () {
    FB.init({
        appId: "221646389321681",
        autoLogAppEvents: true,
        xfbml: true,
        version: "v13.0",
    });
};

window.facebookBusinessExtensionConfig = {
    pixelId: meta_wc_params.pixelId,
    popupOrigin: "https://business.facebook.com",
    setSaveSettingsRoute: meta_wc_params.setSaveSettingsRoute,
    externalBusinessId: meta_wc_params.externalBusinessId,
    fbeLoginUrl: "https://business.facebook.com/fbe-iframe-get-started/?",
    deleteConfigKeys: meta_wc_params.deleteConfigKeys,
    appId: "221646389321681",
    timeZone: "America/Los_Angeles",
    installed: meta_wc_params.connectionType === 'mbe',
    systemUserName: meta_wc_params.systemUserName + "_system_user",
    businessVertical: "ECOMMERCE",
    version: "v8.0",
    currency: "USD",
    businessName: "Solutions Engineering Team",
    debug: true,
    channel: "DEFAULT",
};

var hasAccessToken = jQuery("#fb-adv-conf").attr("data-access-token");

if ("false" == hasAccessToken) {
    jQuery("#fb-adv-conf").hide();
} else {
    jQuery("#fb-adv-conf").show();
    jQuery("#fb-capi-ef").show();

    var enablePiiCachingCheckbox = document.getElementById("capi-ch");
    var piiCachingStatus = meta_wc_params.piiCachingStatus;
    updateCapiPiiCachingCheckbox(piiCachingStatus);
    enablePiiCachingCheckbox.addEventListener("change", function () {
        if (this.checked) {
            saveCapiPiiCachingStatus("1");
        } else {
            saveCapiPiiCachingStatus("0");
        }
    });

    var enablePageViewFilterCheckBox = document.getElementById("capi-ef");
    var capiIntegrationPageViewFiltered =
        meta_wc_params.capiIntegrationPageViewFiltered === "true" ? "1" : "0";
    updateCapiIntegrationEventsFilter(capiIntegrationPageViewFiltered);
    enablePageViewFilterCheckBox.addEventListener("change", function () {
        saveCapiIntegrationEventsFilter(this.checked ? "1" : "0");
    });

    var capigCheckbox = document.getElementById("capig");
    updateCapigCheckbox(meta_wc_params.capig);
    capigCheckbox.addEventListener("change", function () {
        saveCapig(this.checked ? "1" : "0");
    });
    function updateCapigCheckbox(val) {
        capigCheckbox.checked = val === "1";
    }
    function saveCapig(new_val) {
        jQuery
            .ajax({
                type: "post",
                dataType: "json",
                url: meta_wc_params.capigSaveUrl,
                data: {
                    action: meta_wc_params.capigActionName,
                    val: new_val,
                },
                success: function (response) {
                    updateCapigCheckbox(new_val);
                },
            })
            .fail(function (jqXHR, textStatus, error) {
                jQuery("#fb-capig-se").text(
                    meta_wc_params.capigUpdateError
                );
                jQuery("#fb-capig-se")
                    .show().delay(3000).fadeOut();
                updateCapigCheckbox(new_val === "1" ? "0" : "1");
            });
    }
    function updateCapiPiiCachingCheckbox(val) {
        if (val === "1") {
            enablePiiCachingCheckbox.checked = true;
        } else {
            enablePiiCachingCheckbox.checked = false;
        }
    }
    function updateCapiIntegrationEventsFilter(val) {
        enablePageViewFilterCheckBox.checked = val === "1" ? true : false;
    }
    function saveCapiPiiCachingStatus(new_val) {
        jQuery
            .ajax({
                type: "post",
                dataType: "json",
                url: meta_wc_params.capiPiiCachingStatusSaveUrl,
                data: {
                    action: meta_wc_params.capiPiiCachingStatusActionName,
                    val: new_val,
                },
                success: function (response) {
                    updateCapiPiiCachingCheckbox(new_val);
                },
            })
            .fail(function (jqXHR, textStatus, error) {
                jQuery("#fb-capi-se").text(
                    meta_wc_params.capiPiiCachingStatusUpdateError
                );
                jQuery("#fb-capi-se").show().delay(3000).fadeOut();
                updateCapiPiiCachingCheckbox(new_val === "1" ? "0" : "1");
            });
    }
    function saveCapiIntegrationEventsFilter(new_val) {
        jQuery
            .ajax({
                type: "post",
                dataType: "json",
                url: meta_wc_params.capiIntegrationEventsFilterSaveUrl,
                data: {
                    action: meta_wc_params.capiIntegrationEventsFilterActionName,
                    val: new_val,
                },
                success: function (response) {},
            })
            .fail(function (jqXHR, textStatus, error) {
                jQuery("#fb-capi-ef-se").text(
                    meta_wc_params.capiIntegrationEventsFilterUpdateError
                );
                jQuery("#fb-capi-ef-se").show().delay(3000).fadeOut();
                updateCapiIntegrationEventsFilter(new_val === "1" ? "0" : "1");
            });
    }
}
// FBL4B (Facebook Login for Business) configuration
// All values come from PHP via meta_wc_params
window.fbl4bConfig = {
    enabled: meta_wc_params.fbl4bAppId !== ''
             && meta_wc_params.connectionType !== 'mbe',
    upgradeFromMBE: new URLSearchParams(window.location.search).get('upgrade_to_fbl4b') === '1',
    popupOrigin: meta_wc_params.fbl4bPopupOrigin || '',
    iframeUrl: meta_wc_params.fbl4bIframeUrl || '',
    configId: meta_wc_params.fbl4bConfigId || '',
    appId: meta_wc_params.fbl4bAppId || '',
    version: "v25.0",
    debug: typeof META_PIXEL_DEBUG !== 'undefined' ? META_PIXEL_DEBUG : false,
    installed: meta_wc_params.connectionType === 'fbl4b',
    setSaveSettingsRoute: meta_wc_params.fbl4bSaveSettingsRoute || '',
    deleteConfigKeys: meta_wc_params.fbl4bDeleteSettingsRoute || '',
    fetchBusinessIdRoute: meta_wc_params.fbl4bFetchBusinessIdRoute || '',
    fetchPixelsRoute: meta_wc_params.fbl4bFetchPixelsRoute || '',
    validateTokenRoute: meta_wc_params.fbl4bValidateTokenRoute || '',
    clearPixelRoute: meta_wc_params.fbl4bClearPixelRoute || '',
    pixelId: meta_wc_params.fbl4bPixelId || '',
    pixelName: meta_wc_params.fbl4bPixelName || '',
    businessId: meta_wc_params.fbl4bBusinessId || '',
};

var currentFBEInstalledStatus = meta_wc_params.connectionType === 'mbe';
jQuery("#ad-creation-plugin-iframe").attr("data-fbe-extras", getFBEExtras());
jQuery("#ad-insights-plugin-iframe").attr("data-fbe-extras", getFBEExtras());
updateAdInsightsPlugin(currentFBEInstalledStatus);

function getFBEExtras() {
    $fbeConfig = window.facebookBusinessExtensionConfig;
    return JSON.stringify({
        business_config: {
            business: {
                name: $fbeConfig.businessName,
            },
        },
        setup: {
            external_business_id: $fbeConfig.externalBusinessId,
            timezone: $fbeConfig.timeZone,
            currency: $fbeConfig.currency,
            business_vertical: $fbeConfig.businessVertical,
            channel: $fbeConfig.channel,
        },
        repeat: false,
    });
}
function updateAdInsightsPlugin(isFBEInstalled) {
    if (isFBEInstalled) {
        jQuery("#meta-ads-plugin").show();
    } else {
        jQuery("#meta-ads-plugin").hide();
    }
}

function sendTestEvent(e) {
    e.preventDefault();
    var advancedPayloadElement = document.getElementById("advanced-payload");
    var testEventCode = "";
    var testEventName = "";
    var data = "";
    if (advancedPayloadElement.classList.contains("open")) {
        if (!advancedPayloadElement.value) {
            alert("You must enter payload.");
            return;
        }
        advancedPayload = advancedPayloadElement.value;
        try {
            data = JSON.parse(advancedPayload);
            if (data.test_event_code) {
                testEventCode = data.test_event_code;
            }
            testEventName += data.data
                .map((event) => event.event_name)
                .join(", ");
        } catch (e) {
            alert("Invalid JSON in payload.");
            return;
        }
    } else {
        testEventCode = document.getElementById("event-test-code").value;
        testEventName = document.getElementById("test-event-name").value;
    }

    if (!testEventCode) {
        alert("You must enter test event code.");
        return;
    }

    if (!isValidTestEventCode(testEventCode)) {
        alert("Test event code must contain only letters, numbers, and underscores.");
        return;
    }

    jQuery.ajax({
        type: "POST",
        url: meta_wc_params.ajax_url,
        data: {
            action: "send_capi_event",
            nonce: meta_wc_params.send_capi_event_nonce,
            event_name: testEventName,
            test_event_code: testEventCode,
            payload: data,
            custom_data: setCustomData(data, testEventName),
            user_data: {
                ph: "254aa248acb47dd654ca3ea53f48c2c26d641d23d7e2e93a1ec56258df7674c4",
                em: "309a0a5c3e211326ae75ca18196d301a9bdbd1a882a4d2569511033da23f0abd",
            },
        },
        success: function (response) {
            data = JSON.parse(response.data);
            if (!data.error) {
                document
                    .querySelector(".event-log-block>table>tbody")
                    .insertAdjacentHTML(
                        "beforeend",
                        `<tr><td clas="test-event-td">${escapeHtml(testEventCode)}</td><td><span class="test-event-pill test-event-pill--type">${escapeHtml(testEventName)}</span></td><td><span class="test-event-pill test-event-pill--success">Success</span></td></tr>`
                    );
            } else {
                let tableRow = `
                <tr class="test-event--error">
                    <td class="test-event-td test-event-td--error">
                        ${escapeHtml(data.error.message)}
                    </td>
                    <td class="test-event-pill test-event-pill--type">${escapeHtml(testEventName)}</td>
                    <td style="margin-left:auto;">
                        <span class="test-event-pill test-event-button--error">
                            Error
                            <svg id="show-error-btn" class="show-error-icon" width="12" height="8" viewBox="0 0 14 8" fill="none" xmlns="http://www.w3.org/2000/svg">
                                <path d="M2 0L7 5L12 0L14 1L7 8L0 1L2 0Z" fill="#555555"></path>
                            </svg>
                        </span>
                    </td>
                    <td class="test-event-msg--error hidden">
                        ${escapeHtml(data.error.error_user_msg)}
                    </td>
                </tr>
                `;

                document
                    .querySelector(".event-log-block>table>tbody")
                    .insertAdjacentHTML("beforeend", tableRow);

                const testErrorButton = document.querySelectorAll(
                    ".test-event-button--error"
                );
                testErrorButton.forEach((button) => {
                    button.addEventListener("click", handleErrorMessageToggle);
                });
            }

            const eventHintsText = document.querySelector(".event-hints__text");

            if (eventHintsText.classList.contains("initial-text")) {
                const noteCloseButton = document.querySelector(
                    ".event-hints__close-icon"
                );

                noteCloseButton.addEventListener("click", () => {
                    document
                        .querySelector(".event-hints")
                        .classList.add("hidden");
                });
                eventHintsText.textContent =
                    "Note that events can take up to a few minutes to appear in the Events Manager.";
                eventHintsText.classList.remove("initial-text");
                noteCloseButton.classList.remove("hidden");
            }
        },

        error: function (error) {
            console.log(error);
        },
    });
}

function setCustomData(data, testEventName) {
    if (data) {
        return;
    } else {
        if (
            [
                "Purchase",
                "AddToCart",
                "InitiateCheckout",
                "ViewContent",
                "Search",
                "AddPaymentInfo",
                "AddToWishlist",
            ].includes(testEventName)
        ) {
            return {
                value: 123.321,
                currency: "USD",
                content_type: "product",
            };
        } else {
            return null;
        }
    }
}

function handleErrorMessageToggle() {
    const errorRow = this.closest(".test-event--error");

    if (!errorRow) {
        return;
    }

    this.firstElementChild.classList.toggle("open");
    const errorMessage = errorRow.querySelector(".test-event-msg--error");

    if (errorMessage) {
        toggleHeight(errorMessage);
    }
}

function toggleAdvancedPayload() {
    document.getElementById("advanced-payload").classList.toggle("open");
    document.getElementById("populate-payload-button").classList.toggle("show");
    document
        .querySelector(".advanced-edit-toggle-arrow")
        .classList.toggle("open");

    if (
        !document.getElementById("advanced-payload").value &&
        document.getElementById("advanced-payload").classList.contains("open")
    ) {
        populateAdvancedEvent();
    }
}

function populateAdvancedEvent() {
    testEventName = document.getElementById("test-event-name").value;
    testEventCode = document.getElementById("event-test-code").value;
    var exampleEvent = {
        data: [
            {
                event_name: testEventName,
                event_time: Math.floor(Date.now() / 1000),
                event_id: "event.id." + Math.floor(Math.random() * 901 + 100),
                event_source_url: window.location.origin,
                action_source: "website",
                user_data: {
                    em: [
                        "309a0a5c3e211326ae75ca18196d301a9bdbd1a882a4d2569511033da23f0abd",
                    ],
                    ph: [
                        "254aa248acb47dd654ca3ea53f48c2c26d641d23d7e2e93a1ec56258df7674c4",
                    ],
                },
                custom_data: {
                    value: 100.2,
                    currency: "USD",
                    content_ids: ["product.id.123"],
                    content_type: "product",
                },
            },
        ],
        test_event_code: testEventCode ? testEventCode : "TEST4039",
    };
    if (
        ![
            "Purchase",
            "AddToCart",
            "InitiateCheckout",
            "ViewContent",
            "Search",
            "AddPaymentInfo",
            "AddToWishlist",
        ].includes(testEventName)
    ) {
        delete exampleEvent.data[0].custom_data;
    }
    document.getElementById("advanced-payload").value = JSON.stringify(
        exampleEvent,
        null,
        2
    );
}

// Function to toggle height with transition
function toggleHeight(element) {
    if (element.style.height === "0px" || element.style.height === "") {
        element.style.height = `fit-content`;
        element.classList.remove("hidden");
    } else {
        element.style.height = "0";
        element.classList.add("hidden");
    }
}
