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            checkImeiEligibilityThenProceed(function () {

                });

// =============================================================================

// IMEI activation-age check for Navratri scratch coupon eligibility.

//

// Two touch-points:

// 1. On blur/change of an IMEI input → inline ✓/⚠ note under the field so the

//    partner knows upfront whether that IMEI will earn a coupon.

// 2. On Create Order submit → checkImeiEligibilityThenProceed() runs a batch

//    check and, if any IMEI is stale, shows a confirm() dialog. The partner can

//    cancel (bill not created) or OK (bill created without a scratch coupon

//    for the stale IMEIs). Fresh IMEIs still earn coupons as normal.

//

// Never silently blocks the bill — the eligibility endpoint being down means

// we skip the check (fail-open) rather than freeze billing.

// =============================================================================

/**

 * Collect every IMEI entered on the form, hit /scratch-eligibility for each,

 * and only invoke onProceed() once we're sure the partner wants to continue.

 * - All eligible → onProceed() fires immediately after the checks finish.

 * - Any ineligible → confirm() dialog listing the stale IMEIs; onProceed only

 *   fires if the partner clicks OK.

 * - Endpoint error / no IMEIs → onProceed() fires without the dialog.

 */

function checkImeiEligibilityThenProceed(onProceed) {

    var imeis = [];

    $("form#cd input.serialNumber").each(function () {

        var raw = ($(this).val() || '').trim();

        if (!raw) return;

        raw.split(',').forEach(function (s) {

            var sn = s.trim();

            if (sn) imeis.push(sn);

        });

    });

    if (imeis.length === 0) {

        onProceed();

        return;

    }

    var stale = [];

    var pending = imeis.length;

    imeis.forEach(function (imei) {

        $.ajax({

            url: (typeof context !== 'undefined' ? context : '') + '/scratch-eligibility?imei=' + encodeURIComponent(imei),

            method: 'GET',

            dataType: 'json',

            success: function (data) {

                if (data && data.eligible === false) {

                    stale.push({imei: imei, message: data.message});

                }

            },

            error: function () {

                // Endpoint down or network blip — don't hold up the bill.

            },

            complete: function () {

                pending--;

                if (pending === 0) finalize();

            }

        });

    });

    function finalize() {

        if (stale.length === 0) {

            onProceed();

            return;

        }

        var msg = "⚠ The following IMEI(s) are NOT eligible for the Navratri scratch coupon:\n\n";

        stale.forEach(function (r) {

            msg += "• " + r.imei + "\n  " + (r.message || 'Activated more than 2 days ago') + "\n\n";

        });

        msg += "The bill will be created, but NO scratch coupon will be awarded for these IMEIs.\n\nDo you want to continue?";

        if (confirm(msg)) {

            onProceed();

        }

    }

}

// Also fire the IMEI check whenever the Unit Price is entered/edited, since

// the IMEI input itself is often readonly (populated when the item is added)

// and never emits a blur event of its own. Price entry is a real user action

// that happens on every bill, so it's a reliable moment to re-check the row.

$(document).on('blur change', 'input.unitPrice', function () {

    var $row = $(this).closest('tr');

    $row.find('input.serialNumber').each(function () {

        $(this).trigger('blur');

    });

});

$(document).on('blur change', 'input.serialNumber', function () {

    var $input = $(this);

    var raw = ($input.val() || '').trim();

    var $cell = $input.closest('td');

    var $note = $cell.find('.scratch-eligibility-note');

    if ($note.length === 0) {

        $note = $('<div class="scratch-eligibility-note" style="margin-top:4px;line-height:1.3;"></div>');

        // Place below the entire input-group (so it spans the cell, not just the input width).

        $input.closest('.input-group').after($note);

    }

    $note.empty();

    if (raw === '') {

        return;

    }

    var imeis = raw.split(',')

        .map(function (s) {

            return s.trim();

        })

        .filter(function (s) {

            return s !== '';

        });

    imeis.forEach(function (imei) {

        $.ajax({

            url: (typeof context !== 'undefined' ? context : '') + '/scratch-eligibility?imei=' + encodeURIComponent(imei),

            method: 'GET',

            dataType: 'json',

            success: function (data) {

                if (!data) return;

                var eligible = data.eligible === true;

                // Shortened message — the IMEI is already visible in the input right above.

                var short;

                if (data.daysSinceActivation == null) {

                    short = 'Fresh IMEI — coupon will be awarded';

                } else if (eligible) {

                    short = 'Activated ' + data.daysSinceActivation + 'd ago — coupon will be awarded';

                } else {

                    short = 'Activated ' + data.daysSinceActivation + 'd ago — NOT eligible for coupon';

                }

                var bg = eligible ? '#e9f6ec' : '#fdecee';

                var color = eligible ? '#1e6b2a' : '#a7101f';

                var border = eligible ? '#b7e0bf' : '#f1b4bb';

                var icon = eligible ? '✓' : '⚠';

                $('<div></div>')

                    .css({

                        display: 'inline-block',

                        maxWidth: '100%',

                        padding: '3px 8px',

                        marginTop: imeis.length > 1 ? '3px' : '0',

                        background: bg,

                        color: color,

                        border: '1px solid ' + border,

                        borderRadius: '4px',

                        fontSize: '11px',

                        fontWeight: 600,

                        whiteSpace: 'nowrap',

                        overflow: 'hidden',

                        textOverflow: 'ellipsis'

                    })

                    .attr('title', imei + ' — ' + (data.message || ''))

                    .text(icon + ' ' + short)

                    .appendTo($note);

            },

            error: function () {

                // Silently ignore — eligibility is a hint, not a blocker.

            }

        });

    });

});