frappe.provide("ns_app.customer");

// Preserve original quick entry
const _make_quick_entry = frappe.ui.form.make_quick_entry;

console.log("NS APP CUSTOMER JS LOADED");

// Override
frappe.ui.form.make_quick_entry = function (doctype, after_insert) {

    if (doctype === "Customer") {

        console.log("NS App: Intercepted Customer Quick Entry");

        let customer_name = "";

        // Pull value from current form route options
        if (frappe.route_options?.name) {
            customer_name = frappe.route_options.name;
        }

        // Fallback: get typed value from active link field
        if (!customer_name) {

            const active = document.activeElement;

            if (active && active.value) {
                customer_name = active.value;
            }
        }

        console.log("NS App: Captured customer name:", customer_name);

        ns_app.customer.open_quick_entry({
            callback: after_insert,
            customer_name: customer_name
        });

        return;
    }

    return _make_quick_entry.apply(this, arguments);
};

ns_app.customer.open_quick_entry = function (opts = {}) {

    console.log("NS App: Custom Customer Quick Entry OPENED");

    const d = new frappe.ui.Dialog({
        title: "New Customer",
        size: "large",

        fields: [

            // ───────── CUSTOMER ─────────
            {
                fieldtype: "Section Break",
                label: "Customer Information"
            },

            {
                fieldname: "customer_name",
                label: "Customer Name",
                fieldtype: "Data",
                reqd: 1,
                default: opts.customer_name || "",
                description: "Enter the customer or company name"
            },

            {
                fieldname: "customer_type",
                label: "Customer Type",
                fieldtype: "Select",
                options: "Company\nIndividual",
                default: "Company",
                reqd: 1,
                description: "Select whether this customer is a company or individual"
            },

            {
                fieldname: "customer_group",
                label: "Customer Group",
                fieldtype: "Link",
                options: "Customer Group",
                default: "Commercial",
                reqd: 1,
                description: "Select the customer group"
            },

            {
                fieldname: "custom_send_via",
                label: "Preferred Delivery Method",
                fieldtype: "Select",
                options: "mail\nemail\nfax",
                description: "Choose how documents should be sent to the customer"
            },

            // ───────── CONTACT ─────────
            {
                fieldtype: "Section Break",
                label: "Primary Contact"
            },

            {
                fieldname: "email_id",
                label: "Email Address",
                fieldtype: "Data",
                options: "Email",
                description: "Enter the customer's email address"
            },

            {
                fieldname: "mobile_no",
                label: "Mobile Phone Number",
                fieldtype: "Data",
                reqd: 1,
                description: "Enter the customer's mobile phone number"
            },

            // ───────── ADDRESS ─────────
            {
                fieldtype: "Section Break",
                label: "Address Information"
            },

            {
                fieldname: "address_line1",
                label: "Address Line 1",
                fieldtype: "Data",
                reqd: 1,
                description: "Enter the street address"
            },

            {
                fieldname: "address_line2",
                label: "Address Line 2",
                fieldtype: "Data",
                description: "Enter apartment, suite, or secondary address information"
            },

            {
                fieldname: "pincode",
                label: "ZIP Code",
                fieldtype: "Data",
                reqd: 1,
                description: "Enter the ZIP or postal code"
            },

            {
                fieldname: "city",
                label: "City",
                fieldtype: "Data",
                description: "Enter the city"
            },

            {
                fieldname: "state",
                label: "State",
                fieldtype: "Data",
                description: "Enter the state"
            },

            {
                fieldname: "country",
                label: "Country",
                fieldtype: "Link",
                options: "Country",
                default: "United States",
                description: "Select the country"
            }
        ],

        primary_action_label: "Create Customer",

        primary_action(values) {

            console.log("NS App: Create Customer clicked", values);

            d.disable_primary_action();

            frappe.call({
                method: "ns_app.api.customer.create_customer_full",
                args: values,

                callback(r) {

                    console.log("NS App: Customer created", r.message);

                    d.hide();

                    frappe.show_alert({
                        message: "Customer created via NS App",
                        indicator: "green"
                    });

                    if (opts.callback) {
                        opts.callback(r.message);
                    }
                },

                always() {
                    d.enable_primary_action();
                }
            });
        }
    });

    d.show();

    // Accessibility labels for screen readers
    setTimeout(() => {

        d.fields.forEach(field => {

            const control = d.get_field(field.fieldname);

            if (!control || !control.$input) return;

            // ARIA label
            control.$input.attr(
                "aria-label",
                field.label || field.fieldname
            );

            // Screen reader title
            control.$input.attr(
                "title",
                field.label || field.fieldname
            );

            // Placeholder text
            if (field.label) {
                control.$input.attr(
                    "placeholder",
                    field.label
                );
            }
        });

        console.log("NS App: Accessibility labels applied");

    }, 300);

    // ZIP auto-fill
    d.fields_dict.pincode.df.onchange = () => {

        const zip = d.get_value("pincode");

        if (!zip || zip.length < 5) return;

        console.log("NS App: ZIP lookup", zip);

        fetch(`https://api.zippopotam.us/us/${zip}`)
            .then(r => r.ok ? r.json() : null)
            .then(data => {

                if (!data || !data.places?.length) return;

                const p = data.places[0];

                d.set_value("city", p["place name"]);
                d.set_value("state", p["state"]);
                d.set_value("country", data.country);

                console.log("NS App: ZIP autofill success");
            })
            .catch(() => {});
    };

    // Prevent Enter from submitting unless primary button is focused
    d.$wrapper.on("keydown", "input, select, textarea", function (e) {

        if (e.key === "Enter") {

            const active = document.activeElement;

            // Allow Enter ONLY if primary action button is focused
            if (
                active &&
                active.classList.contains("btn-primary")
            ) {
                return;
            }

            e.preventDefault();

            // Move to next field
            const fields = d.$wrapper
                .find("input, select, textarea")
                .filter(":visible:not([disabled])");

            const index = fields.index(this);

            if (index > -1 && index + 1 < fields.length) {
                fields.eq(index + 1).focus();
            }
        }
    });
};