/* Solaron Omnichannel — O2 Inbox (native grid) & Conversation JS.
 * The inbox is a native list_fields grid; reload re-posts the paging/sort/search
 * form to omnichannel_getInbox. Conversation detail opens in a dynamic window
 * (the sdesk/ccenter pattern). Posts go to the relative 'action.php' (a module
 * .js.php is served without a session — never reference $_SESSION here unguarded). */

var omni_csrf = (typeof omni_csrf !== 'undefined') ? omni_csrf : '';
var omni_form_name = (typeof omni_form_name !== 'undefined') ? omni_form_name : 'form_omni_inbox';
var omni_current_cid = 0;

function omnichannel_region() {
    return 'ui-layout-center';
}

/* ---- native grid reload ---- */
function omnichannel_inboxParams(action) {
    var par = 'action=' + action;
    var fields = ['page_selected', 'page_limit', 'page_sort', 'page_sort_desc', 'page_search_string', 'page_filter_id', 'page_filter_field', 'omni_view',
        'f_channel', 'f_department', 'f_employee', 'f_customer', 'f_sale', 'f_status', 'f_participant'];
    for (var i = 0; i < fields.length; i++) {
        var sel = 'form[name=' + omni_form_name + '] input#' + fields[i];
        if ($(sel).length) { par += '&' + fields[i] + '=' + encodeURIComponent($(sel).val()); }
    }
    return par;
}
/* Landing = the Dashboard (primary start page). Called by the module menu + reused as the Dashboard nav button. */
function omnichannel_getList() {
    actionController('action=omnichannel_getDashboard', omnichannel_region());
}
/* Open the Inbox fresh (from the Dashboard / nav) — resets view, filter, search, page, and advanced filters. */
function omnichannel_openInbox() {
    actionController('action=omnichannel_getInbox&omni_view=all&page_filter_field=&page_filter_id=0&page_search_string=&page_selected=1&omni_reset=1', omnichannel_region());
}
/* Open the Inbox on a specific quick-view (all/mine/unassigned/unread). */
function omnichannel_openInboxView(v) {
    actionController('action=omnichannel_getInbox&omni_view=' + encodeURIComponent(v) + '&page_filter_field=&page_filter_id=0&page_search_string=&page_selected=1', omnichannel_region());
}
/* Open the Inbox filtered by a conversation status code (native column filter). */
function omnichannel_openInboxStatus(code) {
    actionController('action=omnichannel_getInbox&omni_view=all&page_filter_field=omnichannel_status&page_filter_id=' + encodeURIComponent(code) + '&page_search_string=&page_selected=1', omnichannel_region());
}
/* Inbox grid reload (sort/filter/search/paging round-trip). */
function omnichannel_reloadInbox() {
    actionController(omnichannel_inboxParams('omnichannel_getInbox'), omnichannel_region());
}
/* O1 foundation status page (still available, technical). */
function omnichannel_getFoundation() {
    actionController('action=omnichannel_getList', omnichannel_region());
}

/* Inbox quick-view filters (All/Mine/Unassigned/Unread) — stay in the Inbox. */
function omnichannel_setView(v) {
    var f = 'form[name=' + omni_form_name + '] input#';
    $(f + 'omni_view').val(v);
    $(f + 'page_selected').val('1');
    omnichannel_reloadInbox();
}
function omnichannel_resetInbox() {
    var f = 'form[name=' + omni_form_name + '] input#';
    $(f + 'omni_view').val('all');
    $(f + 'page_search_string').val('');
    $(f + 'page_filter_id').val('0');
    $(f + 'page_filter_field').val('');
    $(f + 'page_selected').val('1');
    ['f_channel', 'f_department', 'f_employee', 'f_customer', 'f_sale', 'f_status', 'f_participant'].forEach(function (n) { $(f + n).val(''); });
    omnichannel_reloadInbox();
}
/* Reload whichever primary screen is currently shown (Inbox grid vs Dashboard). */
function omnichannel_refreshCurrent() {
    if ($('form[name=form_omni_inbox]').length) { omnichannel_reloadInbox(); }
    else { omnichannel_getList(); }
}

/* ---- O7.1.5 Inbox advanced filters (native, server-side, combinable) ----
   All six controls are native ChosenSelects (Channel/Status/Department/Employee = local option sets;
   Customer/Sale = REMOTE searchable selects, options fetched on typing and scoped to the user's CRM
   visibility + the dependency chain). On change each control's value is mirrored into the hidden f_*
   field and the grid reloads (omnichannel_inboxParams serialises them → one server query; paging/sort/
   open-close preserve them). The value is always a real id (or 'unassigned'), never free text. */
function omnichannel_setHidden(name, val) { $('form[name=' + omni_form_name + '] input#' + name).val(val == null ? '' : val); }
function omnichannel_selVal(id) { var v = $('#' + id).val(); return (v == null) ? '' : ('' + v); }
function omnichannel_applyInboxFilters() {
    omnichannel_setHidden('f_channel', omnichannel_selVal('omni-f-channel'));
    omnichannel_setHidden('f_status', omnichannel_selVal('omni-f-status'));
    omnichannel_setHidden('f_department', omnichannel_selVal('omni-f-department'));
    omnichannel_setHidden('f_employee', omnichannel_selVal('omni-f-employee'));
    omnichannel_setHidden('f_customer', omnichannel_selVal('omni-f-customer'));
    omnichannel_setHidden('f_sale', omnichannel_selVal('omni-f-sale'));
    omnichannel_setHidden('f_participant', $('#omni-f-participant').val() || '');
    omnichannel_setHidden('page_selected', '1'); // filters changed materially → back to page 1 (§12)
    omnichannel_reloadInbox();
}
function omnichannel_clearInboxFilters() {
    // clear the visible Chosen selects + the participant text + the hidden ids; keep grid prefs + view (§8)
    $('#omni-f-channel,#omni-f-status,#omni-f-department,#omni-f-employee,#omni-f-customer,#omni-f-sale').val('').trigger('chosen:updated');
    $('#omni-f-participant').val('');
    ['f_channel', 'f_status', 'f_department', 'f_employee', 'f_customer', 'f_sale', 'f_participant'].forEach(function (n) { omnichannel_setHidden(n, ''); });
    omnichannel_setHidden('page_selected', '1');
    omnichannel_reloadInbox();
}
// current numeric value of a visible filter select ('unassigned'/'' → 0)
function omnichannel_selInt(id) { return parseInt($('#' + id).val() || '0', 10) || 0; }
/* Wire a native Chosen single-select to a REMOTE, CRM-scoped, dependency-scoped source (searchLinkTarget).
   Typing in the Chosen search box fetches a bounded result set (never the whole table) and rebuilds the
   options, preserving the current selection. scopeFn() adds the dependency params (employee→customer,
   customer→sale); scope:'crm' makes the server restrict to the user's CRM visibility. */
function omnichannel_initFilterRemoteChosen(selectId, type, scopeFn) {
    var $sel = $('#' + selectId);
    if (!$sel.length || $sel.data('omni-remote')) { return; }
    $sel.data('omni-remote', 1);
    var $container = $sel.next('.chosen-container');
    if (!$container.length) { return; }
    var $search = $container.find('.chosen-search input, .chosen-search-input').first();
    if (!$search.length) { $search = $container.find('input[type=text]').first(); }
    var timer = null;
    $search.on('keyup.omnifilter', function () {
        var term = $.trim($(this).val());
        clearTimeout(timer);
        if (term.length < 2) { return; }
        timer = setTimeout(function () {
            var data = { action: 'omnichannel_searchLinkTarget', target: type, q: term, scope: 'crm' };
            var scope = scopeFn() || {};
            for (var k in scope) { if (scope.hasOwnProperty(k)) { data[k] = scope[k]; } }
            $.post('action.php', data, function (r) {
                var j; try { j = (typeof r === 'string') ? JSON.parse(r) : r; } catch (e) { return; }
                var curVal = String($sel.val() || '');
                var curText = curVal ? $sel.find('option[value="' + curVal + '"]').text() : '';
                var opts = '<option value=""></option>';
                if (curVal) { opts += '<option value="' + curVal + '" selected>' + $('<div>').text(curText).html() + '</option>'; }
                if (j && j.status === 'success') {
                    (j.results || []).forEach(function (x) {
                        if (String(x.id) !== curVal) { opts += '<option value="' + parseInt(x.id, 10) + '">' + $('<div>').text(x.label).html() + '</option>'; }
                    });
                }
                $sel.html(opts).trigger('chosen:updated');
                var $s2 = $sel.next('.chosen-container').find('.chosen-search input, .chosen-search-input').first();
                $s2.val(term).trigger('keyup.chosen');
            });
        }, 250);
    });
}
function omnichannel_initInboxFilters() {
    // Customer remote-scoped by selected Employee (customer.personal_id owner); Sale by selected Customer.
    omnichannel_initFilterRemoteChosen('omni-f-customer', 'customer', function () { return { personal_id: omnichannel_selInt('omni-f-employee') }; });
    omnichannel_initFilterRemoteChosen('omni-f-sale', 'sale', function () { return { customer_id: omnichannel_selInt('omni-f-customer') }; });
}

/* ---- conversation detail (dynamic window) ---- */
function omnichannel_openConversation(cid) {
    omni_current_cid = cid;
    var wname = 'omni_conv_win_' + cid;
    // percentage sizing => large on desktop, constrained to the workspace viewport
    creatDynamicWindows(wname,
        'action=omnichannel_getConversationDetail&conversation_id=' + cid,
        { x: null, y: null, width: '78%', height: '86%', minWidth: 640, minHeight: 460,
          maxWidth: null, maxHeight: null, icon: 'fa fa-comments-o',
          title: omni_txt('detail_title') + ' #' + cid,
          on_show: null, content: null, footerContent: null, scrollable: true,
          draggable: null, resizable: null, maximizable: null, minimizable: null,
          showModal: null, modalOpacity: null, frameClass: null, frameStyle: null });
}
function omnichannel_reloadDetail(cid) {
    // jQueryWindow keeps instance.content as a DETACHED <div>; the visible frame holds a
    // CLONE of it (jquery.window setContent/content clones the element on append). Mutating
    // instance.content.innerHTML alone updates only the detached original — never the on-screen
    // clone — which is why a linked Customer did not appear until manual reopen. The established
    // Legacy refresh (see create_post_window in jQueryWindow.js) is: set innerHTML on the original,
    // then push it back through the window's own setContent(), which re-clones into the live frame.
    var wname = 'omni_conv_win_' + cid;
    var inst = window[wname];
    if (!inst) { return; }
    $.post('action.php', { action: 'omnichannel_getConversationDetail', conversation_id: cid }, function (data) {
        if (inst.content) { inst.content.innerHTML = data; }
        if (inst.window && typeof inst.window.setContent === 'function') {
            inst.window.setContent(inst.content);   // re-clone updated content into the visible frame
        }
    });
}
function omnichannel_afterMutation(cid) {
    omnichannel_reloadDetail(cid);
    omnichannel_refreshCurrent();
}

/* O7.1.2 — open the NATIVE Sale Add window prefilled with the linked Customer/Contact,
   using the SANCTIONED native mechanism `addSale_referer` (exactly how the CRM creates a
   sale "for this customer" elsewhere). Passing the PLAIN customer_id is what triggers the
   native customer-context init in sale_addSale (the address block at line ~763 AND the
   addSale_referer switch that sets customer_id_0 + personal_id_0 = the customer's owner).
   Our earlier direct customer_id_0 approach skipped that native init (it never sent plain
   customer_id), which is the save-failure difference. A linked contact is preselected via
   contact_id_0 (the native contact selectbox loads the customer's contacts and selects it).
   Same native action + same window opener; no custom form, no post-render hack. */
function omnichannel_openNewSale(cid, custId, contId, w, h, icon, title) {
    var post = 'action=sale_addSale&list_type=1&back_to=omnichannel_afterNewSale(' + cid + ')'
             + '&sale_id=0&window_name=saleWindow0&preview_window_name=';
    if (custId) {
        post += '&addSale_referer=customer&customer_id=' + encodeURIComponent(custId);
        if (contId) { post += '&contact_id_0=' + encodeURIComponent(contId); }
    }
    creatDynamicWindows('saleWindow0', post, {
        x: null, y: null, width: w, height: h, minWidth: null, minHeight: null, maxWidth: null, maxHeight: null,
        icon: icon, title: title, on_show: '', content: null, footerContent: null, scrollable: null,
        draggable: null, resizable: null, maximizable: null, minimizable: null, showModal: null,
        modalOpacity: null, frameClass: null, frameStyle: null
    });
}
/* O7.1.3 — runs (as the sale window's back_to) only after a SUCCESSFUL native sale save.
   sale_setSale echoes the new sale_id, which the native synchronous poster stores in the global
   reload_selectbox_last_value (same id-return path contact/call add-windows use). We take that
   real id and link it to the conversation via the existing server-validated omnichannel_linkSale
   action (omnichannel_assignFromSelect), which reloads the conversation so the Sale field shows
   the new sale selected. No DOM scraping, no MAX(id), no name/number match. If the id is somehow
   unavailable we fall back to a plain reload (new sale still searchable). Cancelling the sale
   window never calls sale_setSale, so back_to never runs → the conversation is unchanged. */
function omnichannel_afterNewSale(cid) {
    var newId = 0;
    try { newId = parseInt(String(reload_selectbox_last_value).replace(/[^0-9]/g, ''), 10) || 0; } catch (e) { newId = 0; }
    if (newId > 0) { omnichannel_assignFromSelect('sale', newId, cid); } // server validates + reloads
    else { omnichannel_reloadDetail(cid); }
}

/* ---- JSON POST helper (CSRF) ---- */
function omnichannel_post(action, data, cb) {
    data = data || {};
    data.action = action;
    data.csrf_token = omni_csrf;
    showWaiting();
    $.post('action.php', data, function (resp) {
        hideWaiting();
        var json;
        try { json = (typeof resp === 'string') ? JSON.parse(resp) : resp; } catch (e) { controller_alert('Unexpected server response.'); return; }
        if (json && json.status === 'success') { if (cb) cb(json); }
        else if (json && json.level === 'warning' && typeof controller_warning === 'function') { controller_warning(json.message || 'Action failed.'); }
        else { controller_alert((json && json.message) ? json.message : 'Action failed.'); }
    });
}

/* ---- assignment / status / read / reply ---- */
function omnichannel_assignMe(cid) {
    omnichannel_post('omnichannel_assignEmployeeAction', { conversation_id: cid, assign_me: '1' }, function () { omnichannel_afterMutation(cid); });
}
function omnichannel_setStatus(cid, code) {
    omnichannel_post('omnichannel_changeStatusAction', { conversation_id: cid, status: code }, function () { omnichannel_afterMutation(cid); });
}
function omnichannel_markRead(cid) {
    omnichannel_post('omnichannel_markReadAction', { conversation_id: cid }, function () { omnichannel_afterMutation(cid); });
}
/* O7.1.4 — outbound draft attachments held client-side per conversation until Send. */
var omni_outbound_drafts = {};
function omnichannel_sendReply(cid) {
    var t = $('#omni-reply-text').val() || '';
    var drafts = (omni_outbound_drafts[cid] || []).map(function (d) { return d.id; });
    if ((!t || !t.trim()) && drafts.length === 0) { return; }
    omnichannel_post('omnichannel_replyAction', { conversation_id: cid, text: t, draft_ids: JSON.stringify(drafts) }, function (json) {
        $('#omni-reply-text').val('');
        omni_outbound_drafts[cid] = [];
        omnichannel_renderDraftTable(cid);
        if (json && json.attachments && json.attachments.failed > 0) {
            var msg = omni_txt('att_send_failed') || 'Some attachments could not be sent.';
            if (json.attachments.errors && json.attachments.errors.length) { msg += '\n' + json.attachments.errors.join('\n'); }
            if (json.attachments.warn && typeof controller_warning === 'function') { controller_warning(msg); }
            else { controller_alert(msg); }
        }
        omnichannel_afterMutation(cid);
    });
}
/* Upload a local file → server stores it as a draft; show a removable chip. */
function omnichannel_pickOutboundFile(cid, input) {
    if (!input || !input.files || !input.files.length) { return; }
    var file = input.files[0];
    var wrap = document.querySelector('.omni-compose-atts[data-cid="' + cid + '"]');
    var max = wrap ? (parseInt(wrap.getAttribute('data-max'), 10) || 0) : 0;
    if (max && file.size > max) { controller_alert(omni_txt('att_too_large') || 'The file exceeds the allowed size.'); input.value = ''; return; }
    var fd = new FormData();
    fd.append('action', 'omnichannel_uploadOutboundFile');
    fd.append('csrf_token', omni_csrf);
    fd.append('conversation_id', cid);
    fd.append('file', file);
    showWaiting();
    $.ajax({ url: 'action.php', data: fd, type: 'post', processData: false, contentType: false,
        success: function (resp) {
            hideWaiting(); input.value = '';
            var j; try { j = (typeof resp === 'string') ? JSON.parse(resp) : resp; } catch (e) { controller_alert('Unexpected server response.'); return; }
            if (j && j.status === 'success') { omnichannel_addDraftChip(cid, j); }
            else { controller_alert((j && j.message) ? j.message : (omni_txt('upload_failed') || 'Upload failed.')); }
        },
        error: function () { hideWaiting(); input.value = ''; controller_alert(omni_txt('upload_failed') || 'Upload failed.'); }
    });
}
/* A selected draft is added to the client list, then the whole Selected-attachments table is
   re-rendered (native Documents-style table, matching the received-attachment timeline). */
function omnichannel_addDraftChip(cid, d) {
    if (!omni_outbound_drafts[cid]) { omni_outbound_drafts[cid] = []; }
    omni_outbound_drafts[cid].push(d);
    omnichannel_renderDraftTable(cid);
}
function omnichannel_draftExt(d) {
    var n = (d.filename || ''), ext = (n.indexOf('.') >= 0) ? n.split('.').pop().toLowerCase() : '';
    if (!ext && d.mime) { var mm = { 'image/jpeg': 'jpg', 'image/png': 'png', 'image/gif': 'gif', 'image/webp': 'webp', 'application/pdf': 'pdf' }; ext = mm[d.mime] || ''; }
    return ext;
}
function omnichannel_draftPreviewable(ext) { return ['pdf', 'png', 'jpeg', 'jpg', 'gif', 'webp'].indexOf(ext) >= 0; }
function omnichannel_fmtSize(bytes) {
    bytes = parseInt(bytes, 10) || 0; if (bytes <= 0) { return '—'; }
    var u = ['B', 'KB', 'MB', 'GB', 'TB'], p = Math.floor(Math.log(bytes) / Math.log(1024)); p = Math.max(0, Math.min(p, u.length - 1));
    return (bytes / Math.pow(1024, p)).toFixed(2).replace(/\.?0+$/, '') + ' ' + u[p];
}
function omnichannel_renderDraftTable(cid) {
    var list = omni_outbound_drafts[cid] || [], box = $('#omni-att-list-' + cid);
    if (!list.length) { box.html(''); return; }
    var esc = function (s) { return $('<span>').text(s == null ? '' : s).html(); };
    var h = '<div style="font-size:12px;font-weight:600;color:#5a6472;margin:2px 0 4px;">' + esc(omni_txt('selected_attachments') || 'Selected attachments') + '</div>';
    h += '<div style="overflow-x:auto;"><table class="table table-striped table-bordered table-hover" style="margin-bottom:0;font-size:12px;background:#fff;"><thead class="thin-border-bottom"><tr>'
        + '<th><i class="ace-icon fa fa-file-o"></i> ' + esc(omni_txt('file') || 'File') + '</th>'
        + '<th><i class="ace-icon fa fa-file-text-o"></i> ' + esc(omni_txt('file_type') || 'Type') + '</th>'
        + '<th>' + esc(omni_txt('file_size') || 'Size') + '</th><th></th></tr></thead><tbody>';
    list.forEach(function (d) {
        var ext = omnichannel_draftExt(d);
        h += '<tr id="omni-draft-' + d.draft_id + '">'
            + '<td style="max-width:230px;overflow:hidden;text-overflow:ellipsis;"><a href="javascript:;" title="' + esc(omni_txt('open') || 'Open') + '" onclick="omnichannel_openDraft(' + cid + ',\'' + d.draft_id + '\'); return false;">' + esc(d.filename) + '</a></td>'
            + '<td>' + esc(ext || '—') + '</td>'
            + '<td>' + esc(omnichannel_fmtSize(d.filesize)) + '</td>'
            + '<td style="text-align:right;white-space:nowrap;">'
            + '<a href="javascript:;" class="btn btn-xs btn-white" title="' + esc(omni_txt('open') || 'Open') + '" onclick="omnichannel_openDraft(' + cid + ',\'' + d.draft_id + '\'); return false;"><i class="ace-icon fa fa-external-link"></i></a> '
            + '<a href="javascript:;" class="btn btn-xs btn-white" title="' + esc(omni_txt('remove') || 'Remove') + '" onclick="omnichannel_removeDraftChip(' + cid + ',\'' + d.draft_id + '\'); return false;"><i class="ace-icon fa fa-trash-o red"></i></a>'
            + '</td></tr>';
    });
    h += '</tbody></table></div>';
    box.html(h);
}
/* Preview a draft before Send via the authenticated, session-scoped draft serve action. */
function omnichannel_openDraft(cid, draftId) {
    var d = (omni_outbound_drafts[cid] || []).filter(function (x) { return x.draft_id === draftId; })[0];
    if (!d) { return; }
    var ext = omnichannel_draftExt(d);
    var base = 'action.php?action=omnichannel_serveDraft&conversation_id=' + cid + '&draft_id=' + encodeURIComponent(draftId);
    if (omnichannel_draftPreviewable(ext)) { omnichannel_openAttachment(base + '&mode=inline', ext); }
    else { omnichannel_downloadAttachmentFile(base + '&mode=download'); }
}
function omnichannel_removeDraftChip(cid, draftId) {
    omnichannel_post('omnichannel_removeOutboundDraft', { conversation_id: cid, draft_id: draftId }, function () {
        omni_outbound_drafts[cid] = (omni_outbound_drafts[cid] || []).filter(function (d) { return d.draft_id !== draftId; });
        omnichannel_renderDraftTable(cid);
    });
}
/* CRM document picker — native list window; each row attaches via omnichannel_addOutboundDocument. */
function omnichannel_pickCrmDocument(cid) {
    creatDynamicWindows('omni_docpick_' + cid, 'action=omnichannel_crmDocPicker&conversation_id=' + cid,
        { width: '58%', height: '72%', minWidth: 520, minHeight: 420, icon: 'fa fa-folder-open-o', title: omni_txt('crm_document') || 'CRM document', scrollable: true });
}
function omnichannel_attachCrmDoc(cid, docFilesId) {
    omnichannel_post('omnichannel_addOutboundDocument', { conversation_id: cid, document_files_id: docFilesId }, function (j) {
        omnichannel_addDraftChip(cid, j);
        if (window['omni_docpick_' + cid] && window['omni_docpick_' + cid].window) { window['omni_docpick_' + cid].window.close(); }
    });
}
/* Preview a CRM document straight from the picker (available rows only) via the authenticated serve action. */
function omnichannel_openCrmDoc(cid, docFilesId, ext) {
    var base = 'action.php?action=omnichannel_serveCrmDocument&conversation_id=' + cid + '&document_files_id=' + (parseInt(docFilesId, 10) || 0);
    if (omnichannel_draftPreviewable((ext || '').toLowerCase())) { omnichannel_openAttachment(base + '&mode=inline', ext); }
    else { omnichannel_downloadAttachmentFile(base + '&mode=download'); }
}
/* Reload the picker content preserving all current filters + scope + page (server-side bounded). */
function omnichannel_crmDocReload(cid, over) {
    var inst = window['omni_docpick_' + cid];
    if (!inst || !inst.content) { return; }
    var root = $(inst.content).find('.omni-docpick');
    var data = { action: 'omnichannel_crmDocPicker', conversation_id: cid,
        scope: root.attr('data-scope') || 'customer',
        q: $('#omni-doc-q-' + cid).val() || '',
        ftype: $('#omni-doc-type-' + cid).val() || '',
        dfrom: $('#omni-doc-from-' + cid).val() || '',
        dto: $('#omni-doc-to-' + cid).val() || '',
        page: 1 };
    if (over) { for (var k in over) { if (over.hasOwnProperty(k)) { data[k] = over[k]; } } }
    $.post('action.php', data, function (html) {
        inst.content.innerHTML = html;
        if (inst.window && typeof inst.window.setContent === 'function') { inst.window.setContent(inst.content); }
    });
}
function omnichannel_crmDocSearch(cid) { omnichannel_crmDocReload(cid, { page: 1 }); }
function omnichannel_crmDocScope(cid, scope) { omnichannel_crmDocReload(cid, { scope: scope, page: 1 }); }
function omnichannel_crmDocPage(cid, page) { omnichannel_crmDocReload(cid, { page: page }); }

/* ---- native Solaron link/assign controls ----
   Customer/Contact/Sale use the native jQuery-UI autocomplete (like the warehouse/sale forms);
   Employee/Department use the native Chosen select. All reuse the existing server actions
   (omnichannel_searchLinkTarget for scoping, link/assign actions for validation + auto-align),
   so the approved dependency logic is unchanged. Controls self-initialise from an inline
   script in the detail — which runs on both first open and setContent reload. */
function omnichannel_applyLink(type, id, cid) {
    var data = { conversation_id: cid }, action = '';
    id = parseInt(id, 10) || 0;
    if (type === 'customer') { action = 'omnichannel_linkCustomer'; data.customer_id = id; }
    else if (type === 'contact') { action = 'omnichannel_linkContact'; data.contact_id = id; }
    else if (type === 'sale') { action = 'omnichannel_linkSale'; data.sale_id = id; }
    else if (type === 'employee') { action = 'omnichannel_assignEmployeeAction'; data.employee_id = id; } // dept auto-resolves server-side
    else if (type === 'department') { action = 'omnichannel_assignDepartmentAction'; data.department_id = id; }
    if (!action) { return; }
    omnichannel_post(action, data, function () { omnichannel_afterMutation(cid); });
}
// scoped remote search backed by the existing action (bounded result set, never the full table)
function omnichannel_remoteSearch(type, term, response, cid) {
    var conv = document.querySelector('.omni-conv[data-cid="' + cid + '"]') || document.querySelector('.omni-conv');
    var customer = conv ? (parseInt(conv.getAttribute('data-customer') || '0', 10) || 0) : 0;
    $.post('action.php', { action: 'omnichannel_searchLinkTarget', target: type, q: term, customer_id: customer }, function (resp) {
        var json; try { json = (typeof resp === 'string') ? JSON.parse(resp) : resp; } catch (e) { response([]); return; }
        var out = [];
        if (json && json.status === 'success') {
            (json.results || []).forEach(function (r) { out.push({ id: parseInt(r.id, 10), label: r.label }); });
        }
        response(out);
    });
}
// Extend the native Chosen control with remote, bounded option loading (for large sets like Customer,
// and for Contact/Sale searched without a Customer). Typing in Chosen's own search box fetches a
// capped result set and refreshes the list — the interaction stays identical to the native Chosen.
function omnichannel_initRemoteChosen(selectId, type, cid) {
    var $sel = $('#' + selectId);
    if (!$sel.length || $sel.data('omni-remote')) { return; }
    $sel.data('omni-remote', 1);
    var $container = $sel.next('.chosen-container');
    if (!$container.length) { return; }
    var $search = $container.find('.chosen-search input').first();
    if (!$search.length) { $search = $container.find('input[type=text]').first(); }
    var timer = null;
    $search.on('keyup.omniremote', function (ev) {
        var term = $.trim($(this).val());
        clearTimeout(timer);
        if (term.length < 2) { return; } // bounded: only hit the server once there is a real term
        timer = setTimeout(function () {
            omnichannel_remoteSearch(type, term, function (items) {
                var curVal = String($sel.val() || '');
                var curText = curVal ? $sel.find('option[value="' + curVal + '"]').text() : '';
                var opts = '<option value=""></option>';
                if (curVal) { opts += '<option value="' + curVal + '" selected>' + $('<div>').text(curText).html() + '</option>'; }
                items.forEach(function (it) {
                    if (String(it.id) !== curVal) { opts += '<option value="' + it.id + '">' + $('<div>').text(it.label).html() + '</option>'; }
                });
                $sel.html(opts).trigger('chosen:updated');
                // keep the dropdown open showing the fresh results, preserving the typed term
                var $s2 = $sel.next('.chosen-container').find('.chosen-search input').first();
                $s2.val(term).trigger('keyup.chosen');
            }, cid);
        }, 250);
    });
}
// Chosen change handler (all five selects). Empty value (Chosen's built-in deselect ×) = clear/unlink/unassign.
function omnichannel_assignFromSelect(type, value, cid) { omnichannel_applyLink(type, value, cid); }

/* ---- attachments (O2: local only; provider media is O3) ---- */
/* O7.1: open an attachment inline in the native Solaron document viewer (PDF via iframe,
   images via the image viewer). The URL is an authenticated server-side serve action; the
   client only ever holds an opaque serve URL bound to an internal attachment_id. */
function omnichannel_openAttachment(url, ext) {
    if (typeof openDocumentInModal === 'function') { openDocumentInModal(url, ext || ''); }
    else { window.open(url, '_blank'); } // graceful fallback if the shared viewer is unavailable
}
/* O7.1: download an attachment (server sends Content-Disposition: attachment). */
function omnichannel_downloadAttachmentFile(url) { window.location.href = url; }

/* ---- dev fixture (admin only) ---- */
function omnichannel_createFixture() {
    var providers = ['facebook', 'instagram', 'whatsapp', 'telegram'];
    var p = providers[Math.floor(Math.random() * providers.length)];
    omnichannel_post('omnichannel_createFixture', { provider: p }, function (json) {
        omnichannel_refreshCurrent();
        if (json.conversation_id) { window.setTimeout(function () { omnichannel_openConversation(json.conversation_id); }, 300); }
    });
}

/* ==========================================================================
 * Channel Account administration (admin only)
 * ========================================================================== */
var omni_chan_form_name = (typeof omni_chan_form_name !== 'undefined') ? omni_chan_form_name : 'form_omni_chan';

function omnichannel_chanParams(action) {
    var par = 'action=' + action;
    var fields = ['page_selected', 'page_limit', 'page_sort', 'page_sort_desc', 'page_search_string', 'page_filter_id', 'page_filter_field'];
    for (var i = 0; i < fields.length; i++) {
        var sel = 'form[name=' + omni_chan_form_name + '] input#' + fields[i];
        if ($(sel).length) { par += '&' + fields[i] + '=' + encodeURIComponent($(sel).val()); }
    }
    return par;
}
/* open the Channel Accounts admin grid (replaces the inbox in the center region) */
function omnichannel_getChannelAccounts() {
    actionController('action=omnichannel_getChannelAccounts', omnichannel_region());
}
/* native reload of the channel grid (sort/filter/search/paging) */
function omnichannel_getChannelAccountsGrid() {
    actionController(omnichannel_chanParams('omnichannel_getChannelAccounts'), omnichannel_region());
}
function omnichannel_addChannelAccount() {
    creatDynamicWindows('omni_ca_form', 'action=omnichannel_channelAccountForm',
        { width: '52%', height: '68%', minWidth: 440, minHeight: 380, icon: 'fa fa-plus', title: omni_txt('add_channel'), scrollable: true });
}
function omnichannel_editChannelAccount(id) {
    creatDynamicWindows('omni_ca_form', 'action=omnichannel_channelAccountForm&id=' + id,
        { width: '52%', height: '68%', minWidth: 440, minHeight: 380, icon: 'fa fa-pencil', title: omni_txt('edit_channel'), scrollable: true });
}
function omnichannel_saveChannelAccount() {
    var d = {
        id: $('#omni-ca-id').val() || 0,
        provider: $('#omni-ca-provider').val(),
        display_name: $('#omni-ca-name').val(),
        external_account_id: $('#omni-ca-external').val(),
        default_department_id: $('#omni-ca-department').val() || 0,
        enabled: $('#omni-ca-enabled').is(':checked') ? '1' : '0'
    };
    // Facebook / Instagram config fields (present only for Meta providers; secrets are write-only)
    if ($('#omni-ca-fb-token').length) {
        d.fb_app_id = $('#omni-ca-fb-app-id').val() || '';
        d.fb_token = $('#omni-ca-fb-token').val() || '';
        d.fb_secret = $('#omni-ca-fb-secret').val() || '';
        d.fb_verify = $('#omni-ca-fb-verify').val() || '';
    }
    // Telegram config fields (present only for provider=telegram; secrets are write-only)
    if ($('#omni-ca-tg-token').length) {
        d.tg_token = $('#omni-ca-tg-token').val() || '';
        d.tg_secret = $('#omni-ca-tg-secret').val() || '';
    }
    // WhatsApp config fields (present only for provider=whatsapp; secrets are write-only)
    if ($('#omni-ca-wa-token').length) {
        d.wa_waba = $('#omni-ca-wa-waba').val() || '';
        d.wa_phone = $('#omni-ca-wa-phone').val() || '';
        d.wa_token = $('#omni-ca-wa-token').val() || '';
        d.wa_secret = $('#omni-ca-wa-secret').val() || '';
        d.wa_verify = $('#omni-ca-wa-verify').val() || '';
    }
    omnichannel_post('omnichannel_saveChannelAccount_action', d, function () {
        if (window['omni_ca_form'] && window['omni_ca_form'].window) { window['omni_ca_form'].window.close(); }
        omnichannel_getChannelAccountsGrid();
    });
}
/* generate a strong Webhook Verify Token (chosen by us, not Meta) */
function omnichannel_generateVerifyToken() {
    var s = '';
    try { var a = new Uint8Array(24); (window.crypto || window.msCrypto).getRandomValues(a); for (var i = 0; i < a.length; i++) { s += ('0' + a[i].toString(16)).slice(-2); } }
    catch (e) { s = 'vt_' + Math.random().toString(36).slice(2) + Math.random().toString(36).slice(2); }
    $('#omni-ca-fb-verify').val(s).focus();
}
/* generate a strong Telegram Webhook Secret Token (chosen by us; sent with setWebhook) */
function omnichannel_generateTelegramSecret() {
    var s = '';
    try { var a = new Uint8Array(24); (window.crypto || window.msCrypto).getRandomValues(a); for (var i = 0; i < a.length; i++) { s += ('0' + a[i].toString(16)).slice(-2); } }
    catch (e) { s = 'tg_' + Math.random().toString(36).slice(2) + Math.random().toString(36).slice(2); }
    $('#omni-ca-tg-secret').val(s).focus();
}
/* generate a strong WhatsApp Webhook Verify Token (chosen by us, not Meta) */
function omnichannel_generateWhatsappVerify() {
    var s = '';
    try { var a = new Uint8Array(24); (window.crypto || window.msCrypto).getRandomValues(a); for (var i = 0; i < a.length; i++) { s += ('0' + a[i].toString(16)).slice(-2); } }
    catch (e) { s = 'wa_' + Math.random().toString(36).slice(2) + Math.random().toString(36).slice(2); }
    $('#omni-ca-wa-verify').val(s).focus();
}
/* copy a field's value to the clipboard (Callback URL etc.) */
function omnichannel_copyField(fieldId) {
    var el = document.getElementById(fieldId); if (!el) { return; }
    el.removeAttribute('readonly'); el.select(); el.setSelectionRange(0, 99999);
    try { if (navigator.clipboard && navigator.clipboard.writeText) { navigator.clipboard.writeText(el.value); } else { document.execCommand('copy'); } } catch (e) {}
    el.setAttribute('readonly', 'readonly');
    if (typeof controller_alert === 'function') { controller_alert(omni_txt('copied')); }
}
/* show the Facebook config section only when provider = facebook (Add form) */
function omnichannel_toggleFbConfig(provider) {
    if ($('#omni-fb-config').length) { $('#omni-fb-config')[provider === 'facebook' ? 'show' : 'hide'](); }
}
function omnichannel_toggleChannelAccount(id, enable) {
    omnichannel_post('omnichannel_toggleChannelAccount', { id: id, enable: enable }, function () { omnichannel_getChannelAccountsGrid(); });
}
function omnichannel_testChannelAccount(id) {
    omnichannel_post('omnichannel_testChannelAccount', { id: id }, function (json) { controller_alert(json.message || ''); });
}
function omnichannel_channelDiagnostics(id) {
    creatDynamicWindows('omni_ca_diag_' + id, 'action=omnichannel_channelDiagnostics&id=' + id,
        { width: '46%', height: '60%', minWidth: 400, minHeight: 320, icon: 'fa fa-stethoscope', title: omni_txt('diagnostics'), scrollable: true });
}

/* ---- user guide / help (large dynamic window, all Omnichannel users) ---- */
function omnichannel_openHelp() {
    creatDynamicWindows('omni_help_win', 'action=omnichannel_showGuide',
        { width: '72%', height: '86%', minWidth: 620, minHeight: 460, icon: 'fa fa-book', title: omni_txt('user_guide'), scrollable: true });
}
/* ---- contextual (per-screen) help ---- */
function omnichannel_openContextHelp(topic) {
    creatDynamicWindows('omni_ctxhelp_' + topic, 'action=omnichannel_showContextHelp&topic=' + encodeURIComponent(topic),
        { width: '58%', height: '78%', minWidth: 540, minHeight: 420, icon: 'fa fa-question-circle', title: omni_txt('help'), scrollable: true });
}
function omnichannel_openFacebookSetupHelp() { omnichannel_openContextHelp('facebook_setup'); }
function omnichannel_openInstagramSetupHelp() { omnichannel_openContextHelp('instagram_setup'); }
function omnichannel_openTelegramSetupHelp() { omnichannel_openContextHelp('telegram_setup'); }
function omnichannel_openWhatsappSetupHelp() { omnichannel_openContextHelp('whatsapp_setup'); }
// Re-render the Add form for the chosen provider so its labels/help/webhook match (setContent refresh).
function omnichannel_reloadChannelForm(provider) {
    var inst = window['omni_ca_form'];
    if (!inst || !inst.content) { if (typeof omnichannel_toggleFbConfig === 'function') { omnichannel_toggleFbConfig(provider); } return; }
    $.post('action.php', { action: 'omnichannel_channelAccountForm', provider: provider }, function (data) {
        inst.content.innerHTML = data;
        if (inst.window && typeof inst.window.setContent === 'function') { inst.window.setContent(inst.content); }
    });
}

/* ---- native CRM navigation from the conversation detail (open real records) ---- */
function omnichannel_openCrm(fn, args) {
    if (typeof window[fn] === 'function') { window[fn].apply(window, args); }
    else { controller_alert(omni_txt('crm_open_unavailable')); }
}

/* tiny localisation shim fed by PHP-rendered strings */
var OMNI_TXT = (typeof OMNI_TXT !== 'undefined') ? OMNI_TXT : {};
function omni_txt(k) { return OMNI_TXT[k] || k; }