// ── Shared util ───────────────────────────────────────────────────────────────

const PAGE_SIZES    = [10, 25, 50, 100];
const PAGE_SIZES_SM = [5, 10, 25, 50];


function _postDelete(action) {
    const form = document.createElement('form');
    form.method = 'POST';
    form.action = action;

    const t = document.createElement('input');
    t.type  = 'hidden';
    t.name  = '_token';
    t.value = window.__csrf || '';
    form.appendChild(t);

    document.body.appendChild(form);
    form.submit();
}

function _escapeHtml(value) {
    return String(value).replace(/[&<>"']/g, function (char) {
        return {
            '&': '&amp;',
            '<': '&lt;',
            '>': '&gt;',
            '"': '&quot;',
            "'": '&#039;',
        }[char];
    });
}

// ── Campaign Type ─────────────────────────────────────────────────────────────

window.campaignTypeTable = function () {
    return {
        table: null,

        init() {
            this.initTable();
        },

        initTable() {
            const el = document.getElementById('campaign-type-table');
            if (!el || typeof Tabulator === 'undefined') {
                return;
            }

            this.table = new Tabulator(el, {
                ajaxURL: '/campaign-types/data',
                layout: 'fitColumns',
                responsiveLayout: 'collapse',
                pagination: true,
                paginationMode: 'local',
                paginationSize: 10,
                paginationSizeSelector: PAGE_SIZES,
                movableColumns: true,
                placeholder: 'No campaign types found.',
                initialSort: [{ column: 'name', dir: 'asc' }],
                columns: [
                    {
                        title: 'Actions',
                        field: 'id',
                        width: 160,
                        hozAlign: 'center',
                        headerSort: false,
                        formatter: function (cell) {
                            const id = cell.getValue();
                            return '<a href="/campaign-types/' + id + '/edit" class="button button-secondary button-sm">Edit</a> ' +
                                   '<button onclick="window.deleteCampaignType(' + id + ')" class="button button-danger button-sm">Delete</button>';
                        },
                    },
                    { title: 'Name', field: 'name', minWidth: 200 },
                    {
                        title: 'Attributes',
                        field: 'attributes_summary',
                        minWidth: 240,
                        formatter: function (cell) {
                            const v = cell.getValue();
                            return v ? '<span class="attr-summary">' + _escapeHtml(v) + '</span>'
                                     : '<span class="attr-empty">&mdash;</span>';
                        },
                    },
                    { title: 'Count',   field: 'attribute_count', hozAlign: 'center', width: 80 },
                    { title: 'Created', field: 'created_at', minWidth: 160 },
                ],
            });
        },

        reloadTable() {
            if (!this.table) {
                this.initTable();
                return;
            }
            this.table.setData('/campaign-types/data');
        },
    };
};

window.deleteCampaignType = function (id) {
    if (!confirm('Delete this campaign type? This cannot be undone.')) {
        return;
    }
    _postDelete('/campaign-types/' + id + '/delete');
};

window.campaignTypeForm = function (initialAttributes) {
    return {
        attributes:    Array.isArray(initialAttributes) ? initialAttributes : [],
        dragIndex:     null,
        dragOverIndex: null,

        addAttribute() {
            this.attributes.push({ name: '', type: 'text', order: this.attributes.length + 1 });
        },

        removeAttribute(index) {
            this.attributes.splice(index, 1);
            this.renumberOrder();
        },

        renumberOrder() {
            this.attributes.forEach(function (attr, i) { attr.order = i + 1; });
        },

        dragStart(event, index) {
            this.dragIndex = index;
            event.dataTransfer.effectAllowed = 'move';
        },

        dragOver(event, index) {
            this.dragOverIndex = index;
        },

        drop(event, index) {
            if (this.dragIndex !== null && this.dragIndex !== index) {
                var moved = this.attributes.splice(this.dragIndex, 1)[0];
                this.attributes.splice(index, 0, moved);
                this.renumberOrder();
            }
            this.dragIndex     = null;
            this.dragOverIndex = null;
        },

        dragEnd() {
            this.dragIndex     = null;
            this.dragOverIndex = null;
        },

        confirmDelete(event) {
            if (confirm('Delete this campaign type? This cannot be undone.')) {
                event.target.submit();
            }
        },
    };
};

// ── Campaign ──────────────────────────────────────────────────────────────────

window.campaignTable = function () {
    return {
        table: null,
        jobsTable: null,
        isLoading: false,
        isJobsLoading: false,
        errorMessage: '',
        jobsErrorMessage: '',
        selectedCampaignId: null,
        selectedCampaignTitle: '',

        init() {
            this.loadTable();
        },

        async loadTable() {
            const el = document.getElementById('campaign-table');
            if (!el || typeof Tabulator === 'undefined' || this.isLoading) {
                return;
            }

            this.isLoading = true;
            this.errorMessage = '';

            try {
                const response = await fetch('/campaigns/data', {
                    headers: { Accept: 'application/json' },
                });

                if (!response.ok) {
                    throw new Error('Unable to load campaigns.');
                }

                const rows = await response.json();
                const campaignRows = Array.isArray(rows) ? rows : [];
                const attributes = this.attributeColumnsForRows(campaignRows);
                const tableRows = this.formatRows(campaignRows, attributes);
                const columns = this.columnsForAttributes(attributes);

                if (!this.table) {
                    this.table = new Tabulator(el, {
                        data: tableRows,
                        layout: 'fitColumns',
                        responsiveLayout: 'collapse',
                        pagination: true,
                        paginationMode: 'local',
                        paginationSize: 10,
                        paginationSizeSelector: PAGE_SIZES,
                        movableColumns: true,
                        placeholder: 'No campaigns found.',
                        initialSort: [{ column: 'campaign_type_name', dir: 'asc' }],
                        columns: columns,
                    });
                    this.table.on('rowClick', (event, row) => this.goToCampaignJobs(event, row));
                } else {
                    this.table.setColumns(columns);
                    this.table.setData(tableRows);
                }
            } catch (error) {
                this.errorMessage = error.message || 'Unable to load campaigns.';
            } finally {
                this.isLoading = false;
            }
        },

        attributeColumnsForRows(rows) {
            const attributes = [];

            rows.forEach((row) => {
                this.normalizeAttributes(row.campaign_type_attributes || []).forEach((attr) => {
                    if (!attributes.some((existing) => existing.name === attr.name)) {
                        attributes.push(attr);
                    }
                });

                Object.keys(row.attribute_values || {}).forEach((name) => {
                    if (!attributes.some((existing) => existing.name === name)) {
                        attributes.push({ name: name, type: 'text', order: attributes.length + 1 });
                    }
                });
            });

            return attributes;
        },

        normalizeAttributes(attributes) {
            return attributes
                .filter((attr) => attr && attr.name)
                .slice()
                .sort((a, b) => (a.order || 0) - (b.order || 0));
        },

        formatRows(rows, attributes) {
            return rows.map((row) => {
                const attributeValues = row.attribute_values || {};
                const tableRow = {
                    id: row.id,
                    campaign_type_name: row.campaign_type_name || '',
                    created_at: row.created_at || '',
                };

                attributes.forEach((attr, index) => {
                    tableRow['attr_' + index] = this.formatAttributeValue(attributeValues[attr.name] ?? '');
                });

                return tableRow;
            });
        },

        formatAttributeValue(value) {
            if (value === null || value === undefined) {
                return '';
            }

            if (Array.isArray(value) || typeof value === 'object') {
                return JSON.stringify(value);
            }

            return String(value);
        },

        columnsForAttributes(attributes) {
            const columns = [
                {
                    title: 'Actions',
                    field: 'id',
                    width: 230,
                    hozAlign: 'center',
                    headerSort: false,
                    formatter: function (cell) {
                        const id = cell.getValue();
                        return '<a href="/campaigns/' + id + '/jobs" class="button button-primary button-sm">Jobs</a> ' +
                               '<a href="/campaigns/' + id + '/edit" class="button button-secondary button-sm">Edit</a> ' +
                               '<button onclick="window.deleteCampaign(' + id + ')" class="button button-danger button-sm">Delete</button>';
                    },
                },
                {
                    title: 'Campaign Type',
                    field: 'campaign_type_name',
                    minWidth: 160,
                    headerFilter: 'input',
                },
            ];

            attributes.forEach((attr, index) => {
                columns.push({
                    title: attr.name,
                    field: 'attr_' + index,
                    minWidth: 150,
                    headerFilter: 'input',
                    formatter: function (cell) {
                        const value = cell.getValue();
                        return value ? _escapeHtml(value) : '<span class="attr-empty">&mdash;</span>';
                    },
                });
            });

            columns.push(
                { title: 'Created', field: 'created_at', minWidth: 160, headerFilter: 'input' }
            );

            return columns;
        },

        goToCampaignJobs(event, row) {
            const target = event.target;
            if (target instanceof Element && target.closest('a, button')) {
                return;
            }

            window.location.href = '/campaigns/' + encodeURIComponent(row.getData().id) + '/jobs';
        },

        reloadTable() {
            this.loadTable();
        },

        openCampaignJobs(campaign) {
            this.selectedCampaignId = campaign.id;
            this.selectedCampaignTitle = 'Campaign #' + campaign.id + ' - ' + campaign.campaign_type_name;
            this.$nextTick(() => this.loadJobsTable());
        },

        async reloadJobsTable() {
            if (!this.selectedCampaignId) {
                return;
            }

            await this.loadJobsTable();
        },

        closeJobsTable() {
            this.selectedCampaignId = null;
            this.selectedCampaignTitle = '';
            this.jobsErrorMessage = '';

            if (this.jobsTable && typeof this.jobsTable.destroy === 'function') {
                this.jobsTable.destroy();
            }

            this.jobsTable = null;
        },

        async loadJobsTable() {
            const el = document.getElementById('campaign-jobs-drilldown-table');
            if (!el || typeof Tabulator === 'undefined' || this.isJobsLoading) {
                return;
            }

            this.isJobsLoading = true;
            this.jobsErrorMessage = '';

            try {
                const response = await fetch('/campaigns/' + encodeURIComponent(this.selectedCampaignId) + '/jobs/data', {
                    headers: { Accept: 'application/json' },
                });

                if (!response.ok) {
                    throw new Error('Unable to load campaign jobs.');
                }

                const rows = await response.json();
                const jobRows = Array.isArray(rows) ? rows : [];
                const attributes = this.jobAttributeColumnsForRows(jobRows);
                const tableRows = this.formatJobRows(jobRows, attributes);
                const columns = this.jobColumnsForAttributes(attributes);

                if (!this.jobsTable) {
                    this.jobsTable = new Tabulator(el, {
                        data: tableRows,
                        layout: 'fitColumns',
                        responsiveLayout: 'collapse',
                        pagination: true,
                        paginationMode: 'local',
                        paginationSize: 10,
                        paginationSizeSelector: PAGE_SIZES,
                        movableColumns: true,
                        placeholder: 'No jobs found for this campaign.',
                        initialSort: [{ column: 'job_type_name', dir: 'asc' }],
                        columns: columns,
                    });
                } else {
                    this.jobsTable.setColumns(columns);
                    this.jobsTable.setData(tableRows);
                }
            } catch (error) {
                this.jobsErrorMessage = error.message || 'Unable to load campaign jobs.';
            } finally {
                this.isJobsLoading = false;
            }
        },

        jobAttributeColumnsForRows(rows) {
            const attributes = [];

            rows.forEach((row) => {
                this.normalizeAttributes(row.job_type_attributes || []).forEach((attr) => {
                    if (!attributes.some((existing) => existing.name === attr.name)) {
                        attributes.push(attr);
                    }
                });

                Object.keys(row.attribute_values || {}).forEach((name) => {
                    if (!attributes.some((existing) => existing.name === name)) {
                        attributes.push({ name: name, type: 'text', order: attributes.length + 1 });
                    }
                });
            });

            return attributes;
        },

        formatJobRows(rows, attributes) {
            return rows.map((row) => {
                const attributeValues = row.attribute_values || {};
                const tableRow = {
                    id: row.id,
                    campaign_id: row.campaign_id || '',
                    job_type_id: row.job_type_id || '',
                    job_type_name: row.job_type_name || '',
                    created_at: row.created_at || '',
                    updated_at: row.updated_at || '',
                    edit_url: '/jobs/' + encodeURIComponent(row.id) + '/edit',
                };

                attributes.forEach((attr, index) => {
                    tableRow['job_attr_' + index] = this.formatAttributeValue(attributeValues[attr.name] ?? '');
                });

                return tableRow;
            });
        },

        jobColumnsForAttributes(attributes) {
            const columns = [
                {
                    title: 'Actions',
                    field: 'edit_url',
                    width: 90,
                    hozAlign: 'center',
                    headerSort: false,
                    formatter: function (cell) {
                        return '<a href="' + _escapeHtml(cell.getValue()) + '" class="button button-secondary button-sm">Edit</a>';
                    },
                },
                { title: 'Job ID', field: 'id', width: 90, hozAlign: 'center', headerFilter: 'input' },
                { title: 'Campaign ID', field: 'campaign_id', width: 120, hozAlign: 'center', headerFilter: 'input' },
                { title: 'Job Type ID', field: 'job_type_id', width: 120, hozAlign: 'center', headerFilter: 'input' },
                { title: 'Job Type', field: 'job_type_name', minWidth: 160, headerFilter: 'input' },
            ];

            attributes.forEach((attr, index) => {
                columns.push({
                    title: attr.name,
                    field: 'job_attr_' + index,
                    minWidth: 150,
                    headerFilter: 'input',
                    formatter: function (cell) {
                        const value = cell.getValue();
                        return value ? _escapeHtml(value) : '<span class="attr-empty">&mdash;</span>';
                    },
                });
            });

            columns.push(
                { title: 'Created', field: 'created_at', minWidth: 160, headerFilter: 'input' },
                { title: 'Updated', field: 'updated_at', minWidth: 160, headerFilter: 'input' }
            );

            return columns;
        },
    };
};

window.deleteCampaign = function (id) {
    if (!confirm('Delete this campaign? This cannot be undone.')) {
        return;
    }
    _postDelete('/campaigns/' + id + '/delete');
};

window.campaignJobsPageTable = function (campaignId, jobTypes) {
    return {
        table: null,
        jobTypes: Array.isArray(jobTypes) ? jobTypes : [],
        isLoading: false,
        isConnecting: false,
        isImporting: false,
        errorMessage: '',
        importSheetUrl: '',
        sheets: [],
        selectedSheetGid: '',
        selectedImportJobTypeId: '0',
        importMessage: '',
        importErrorMessage: '',

        // File upload state
        importSource: 'sheets',
        fileSelected: false,
        fileTempName: '',
        fileSheets: [],
        selectedFileSheetGid: '',
        selectedFileJobTypeId: '0',
        isLoadingFile: false,
        isImportingFile: false,

        init() {
            this.loadTable();
        },

        dataUrl() {
            return '/campaigns/' + encodeURIComponent(campaignId) + '/jobs/data';
        },

        sheetsUrl() {
            return '/campaigns/' + encodeURIComponent(campaignId) + '/jobs/import/sheets';
        },

        importUrl() {
            return '/campaigns/' + encodeURIComponent(campaignId) + '/jobs/import';
        },

        async loadTable() {
            const el = document.getElementById('campaign-jobs-page-table');
            if (!el || typeof Tabulator === 'undefined' || this.isLoading) {
                return;
            }

            this.isLoading = true;
            this.errorMessage = '';

            try {
                const response = await fetch(this.dataUrl(), {
                    headers: { Accept: 'application/json' },
                });

                if (!response.ok) {
                    throw new Error('Unable to load campaign jobs.');
                }

                const rows = await response.json();
                const jobRows = Array.isArray(rows) ? rows : [];
                const attributes = this.attributeColumnsForRows(jobRows);
                const tableRows = this.formatRows(jobRows, attributes);
                const columns = this.columnsForAttributes(attributes);

                if (!this.table) {
                    this.table = new Tabulator(el, {
                        data: tableRows,
                        layout: 'fitData',
                        maxHeight: '65vh',
                        pagination: true,
                        paginationMode: 'local',
                        paginationSize: 10,
                        paginationSizeSelector: PAGE_SIZES,
                        movableColumns: true,
                        placeholder: 'No jobs found for this campaign.',
                        initialSort: [{ column: 'job_type_name', dir: 'asc' }],
                        columns: columns,
                    });
                } else {
                    this.table.setColumns(columns);
                    this.table.setData(tableRows);
                }
            } catch (error) {
                this.errorMessage = error.message || 'Unable to load campaign jobs.';
            } finally {
                this.isLoading = false;
            }
        },

        attributeColumnsForRows(rows) {
            const attributes = [];

            rows.forEach((row) => {
                this.normalizeAttributes(row.job_type_attributes || []).forEach((attr) => {
                    if (!attributes.some((existing) => existing.name === attr.name)) {
                        attributes.push(attr);
                    }
                });

                Object.keys(row.attribute_values || {}).forEach((name) => {
                    if (!attributes.some((existing) => existing.name === name)) {
                        attributes.push({ name: name, type: 'text', order: attributes.length + 1 });
                    }
                });
            });

            return attributes;
        },

        normalizeAttributes(attributes) {
            return attributes
                .filter((attr) => attr && attr.name)
                .slice()
                .sort((a, b) => (a.order || 0) - (b.order || 0));
        },

        formatRows(rows, attributes) {
            return rows.map((row) => {
                const attributeValues = row.attribute_values || {};
                const tableRow = {
                    id: row.id,
                    campaign_id: row.campaign_id || '',
                    campaign_type_name: row.campaign_type_name || '',
                    job_type_id: row.job_type_id || '',
                    job_type_name: row.job_type_name || '',
                    created_at: row.created_at || '',
                    updated_at: row.updated_at || '',
                    edit_url: '/jobs/' + encodeURIComponent(row.id) + '/edit',
                };

                attributes.forEach((attr, index) => {
                    tableRow['attr_' + index] = this.formatAttributeValue(attributeValues[attr.name] ?? '');
                });

                return tableRow;
            });
        },

        formatAttributeValue(value) {
            if (value === null || value === undefined) {
                return '';
            }

            if (Array.isArray(value) || typeof value === 'object') {
                return JSON.stringify(value);
            }

            return String(value);
        },

        columnsForAttributes(attributes) {
            const columns = [
                {
                    title: 'Actions',
                    field: 'edit_url',
                    width: 90,
                    hozAlign: 'center',
                    headerSort: false,
                    formatter: function (cell) {
                        return '<a href="' + _escapeHtml(cell.getValue()) + '" class="button button-secondary button-sm">Edit</a>';
                    },
                },
                { title: 'Job ID', field: 'id', width: 90, hozAlign: 'center', headerFilter: 'input' },
                { title: 'Campaign ID', field: 'campaign_id', width: 120, hozAlign: 'center', headerFilter: 'input' },
                { title: 'Campaign Type', field: 'campaign_type_name', minWidth: 160, headerFilter: 'input' },
                { title: 'Job Type ID', field: 'job_type_id', width: 120, hozAlign: 'center', headerFilter: 'input' },
                { title: 'Job Type', field: 'job_type_name', minWidth: 160, headerFilter: 'input' },
            ];

            attributes.forEach((attr, index) => {
                columns.push({
                    title: attr.name,
                    field: 'attr_' + index,
                    minWidth: 150,
                    headerFilter: 'input',
                    formatter: function (cell) {
                        const value = cell.getValue();
                        return value ? _escapeHtml(value) : '<span class="attr-empty">&mdash;</span>';
                    },
                });
            });

            columns.push(
                { title: 'Created', field: 'created_at', minWidth: 160, headerFilter: 'input' },
                { title: 'Updated', field: 'updated_at', minWidth: 160, headerFilter: 'input' }
            );

            return columns;
        },

        reloadTable() {
            this.loadTable();
        },

        async connectGoogleSheet() {
            this.isConnecting = true;
            this.importMessage = '';
            this.importErrorMessage = '';
            this.sheets = [];
            this.selectedSheetGid = '';

            try {
                const data = await this.postImportForm(this.sheetsUrl(), {
                    sheet_url: this.importSheetUrl,
                });

                this.sheets = Array.isArray(data.sheets) ? data.sheets : [];
                if (this.sheets.length > 0) {
                    this.selectedSheetGid = this.sheets[0].gid;
                    this.importMessage = 'Connected. Select a sheet and job type to import.';
                } else {
                    this.importErrorMessage = 'No sheets were found in that Google Sheets file.';
                }
            } catch (error) {
                this.importErrorMessage = error.message || 'Unable to connect to Google Sheets.';
            } finally {
                this.isConnecting = false;
            }
        },

        async importGoogleSheet() {
            this.isImporting = true;
            this.importMessage = '';
            this.importErrorMessage = '';

            try {
                const data = await this.postImportForm(this.importUrl(), {
                    sheet_url: this.importSheetUrl,
                    sheet_gid: this.selectedSheetGid,
                    job_type_id: this.selectedImportJobTypeId,
                });

                const matched = Array.isArray(data.matched_attributes) ? data.matched_attributes.join(', ') : '';
                this.importMessage = 'Imported ' + data.imported + ' jobs. Skipped ' + data.skipped + ' empty rows.' +
                    (matched ? ' Matched: ' + matched + '.' : '');
                await this.loadTable();
            } catch (error) {
                this.importErrorMessage = error.message || 'Unable to import Google Sheet.';
            } finally {
                this.isImporting = false;
            }
        },

        async postImportForm(url, fields) {
            const body = new URLSearchParams();
            body.set('_token', window.__csrf || '');

            Object.keys(fields).forEach((key) => {
                body.set(key, fields[key] || '');
            });

            const response = await fetch(url, {
                method: 'POST',
                headers: {
                    Accept: 'application/json',
                    'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8',
                },
                body: body.toString(),
            });

            const data = await response.json().catch(() => ({}));
            if (!response.ok) {
                throw new Error(data.error || 'Import failed.');
            }

            return data;
        },

        // ── File upload methods ───────────────────────────────────────────────

        onFileSelect(event) {
            this.fileSelected  = event.target.files && event.target.files.length > 0;
            this.fileTempName  = '';
            this.fileSheets    = [];
            this.selectedFileSheetGid = '';
            this.importMessage = '';
            this.importErrorMessage = '';
        },

        async loadFileSheets() {
            this.isLoadingFile  = true;
            this.importMessage  = '';
            this.importErrorMessage = '';
            this.fileTempName   = '';
            this.fileSheets     = [];
            this.selectedFileSheetGid = '';

            try {
                const fileInput = this.$refs.fileInput;
                if (!fileInput || !fileInput.files || fileInput.files.length === 0) {
                    throw new Error('No file selected.');
                }

                const form = new FormData();
                form.set('_token', window.__csrf || '');
                form.set('import_file', fileInput.files[0]);

                const url      = '/campaigns/' + encodeURIComponent(campaignId) + '/jobs/import/file/sheets';
                const response = await fetch(url, {
                    method: 'POST',
                    headers: { Accept: 'application/json' },
                    body: form,
                });

                const data = await response.json().catch(() => ({}));
                if (!response.ok) {
                    throw new Error(data.error || 'Could not read the file.');
                }

                this.fileTempName  = data.temp_file || '';
                this.fileSheets    = Array.isArray(data.sheets) ? data.sheets : [];

                if (this.fileSheets.length > 0) {
                    this.selectedFileSheetGid = this.fileSheets[0].gid;
                    this.importMessage = 'File loaded. Select a sheet and job type to import.';
                } else {
                    this.importErrorMessage = 'No sheets were found in the uploaded file.';
                }
            } catch (error) {
                this.importErrorMessage = error.message || 'Could not read the file.';
            } finally {
                this.isLoadingFile = false;
            }
        },

        async importFile() {
            this.isImportingFile    = true;
            this.importMessage      = '';
            this.importErrorMessage = '';

            try {
                const url  = '/campaigns/' + encodeURIComponent(campaignId) + '/jobs/import/file';
                const data = await this.postImportForm(url, {
                    temp_file:   this.fileTempName,
                    sheet_gid:   this.selectedFileSheetGid,
                    job_type_id: this.selectedFileJobTypeId,
                });

                const matched = Array.isArray(data.matched_attributes) ? data.matched_attributes.join(', ') : '';
                this.importMessage = 'Imported ' + data.imported + ' jobs. Skipped ' + data.skipped + ' empty rows.' +
                    (matched ? ' Matched: ' + matched + '.' : '');
                this.fileTempName = '';
                await this.loadTable();
            } catch (error) {
                this.importErrorMessage = error.message || 'Import failed.';
            } finally {
                this.isImportingFile = false;
            }
        },
    };
};

window.campaignForm = function (types, initialTypeId, initialValues) {
    return {
        types:           types,
        selectedTypeId:  String(initialTypeId || ''),
        attributeValues: Object.assign({}, initialValues || {}),

        get currentType() {
            var id = this.selectedTypeId;
            if (!id) return null;
            return this.types.find(function (t) { return String(t.id) === String(id); }) || null;
        },

        get currentAttributes() {
            if (!this.currentType) return [];
            return this.currentType.attributes.slice().sort(function (a, b) {
                return (a.order || 0) - (b.order || 0);
            });
        },

        onTypeChange() {
            this.attributeValues = {};
        },

        inputType(attrType) {
            return ['number', 'date'].includes(attrType) ? attrType : 'text';
        },

        confirmDelete(event) {
            if (confirm('Delete this campaign? This cannot be undone.')) {
                event.target.submit();
            }
        },
    };
};

// Campaign Jobs

window.campaignJobsTable = function (campaignId) {
    return {
        tables: {},
        groups: [],
        isVisible: false,
        isLoading: false,
        hasLoaded: false,
        errorMessage: '',

        dataUrl() {
            return '/campaigns/' + encodeURIComponent(campaignId) + '/jobs/data';
        },

        async showTable() {
            this.isVisible = true;
            if (!this.hasLoaded) {
                await this.loadGroups();
            }
        },

        hideTable() {
            this.isVisible = false;
        },

        async reloadTable() {
            this.isVisible = true;
            await this.loadGroups();
        },

        async loadGroups() {
            this.isLoading = true;
            this.errorMessage = '';
            this.destroyTables();

            try {
                const response = await fetch(this.dataUrl(), {
                    headers: { Accept: 'application/json' },
                });

                if (!response.ok) {
                    throw new Error('Unable to load campaign jobs.');
                }

                const rows = await response.json();
                this.groups = this.groupRows(Array.isArray(rows) ? rows : []);
                this.hasLoaded = true;
                this.$nextTick(() => this.initTables());
            } catch (error) {
                this.groups = [];
                this.errorMessage = error.message || 'Unable to load campaign jobs.';
            } finally {
                this.isLoading = false;
            }
        },

        groupRows(rows) {
            const groups = {};

            rows.forEach((row) => {
                const id = String(row.job_type_id || 0);
                if (!groups[id]) {
                    groups[id] = {
                        id: id,
                        elementId: 'campaign-jobs-table-' + id,
                        name: row.job_type_name || 'Job Type #' + id,
                        attributes: this.normalizeAttributes(row.job_type_attributes || []),
                        rows: [],
                    };
                }

                const attributeValues = row.attribute_values || {};
                this.ensureAttributeColumns(groups[id], attributeValues);

                const gridRow = {
                    id: row.id,
                    created_at: row.created_at || '',
                    edit_url: '/jobs/' + encodeURIComponent(row.id) + '/edit',
                };

                groups[id].attributes.forEach((attr, index) => {
                    gridRow['attr_' + index] = this.formatAttributeValue(attributeValues[attr.name] ?? '');
                });

                groups[id].rows.push(gridRow);
            });

            return Object.values(groups).sort((a, b) => a.name.localeCompare(b.name));
        },

        ensureAttributeColumns(group, attributeValues) {
            Object.keys(attributeValues).forEach((name) => {
                const exists = group.attributes.some((attr) => attr.name === name);
                if (!exists) {
                    group.attributes.push({
                        name: name,
                        type: 'text',
                        order: group.attributes.length + 1,
                    });
                }
            });
        },

        normalizeAttributes(attributes) {
            return attributes
                .filter((attr) => attr && attr.name)
                .slice()
                .sort((a, b) => (a.order || 0) - (b.order || 0));
        },

        formatAttributeValue(value) {
            if (value === null || value === undefined) {
                return '';
            }

            if (Array.isArray(value) || typeof value === 'object') {
                return JSON.stringify(value);
            }

            return String(value);
        },

        initTables() {
            if (typeof Tabulator === 'undefined') {
                return;
            }

            this.groups.forEach((group) => {
                const el = document.getElementById(group.elementId);
                if (!el || this.tables[group.id]) {
                    return;
                }

                this.tables[group.id] = new Tabulator(el, {
                    data: group.rows,
                    layout: 'fitColumns',
                    responsiveLayout: 'collapse',
                    pagination: true,
                    paginationMode: 'local',
                    paginationSize: 5,
                    paginationSizeSelector: PAGE_SIZES_SM,
                    movableColumns: true,
                    placeholder: 'No jobs found for this job type.',
                    initialSort: [{ column: 'created_at', dir: 'desc' }],
                    columns: this.columnsForGroup(group),
                });
            });
        },

        columnsForGroup(group) {
            const actions = {
                title: 'Actions',
                field: 'edit_url',
                width: 90,
                hozAlign: 'center',
                headerSort: false,
                formatter: function (cell) {
                    return '<a href="' + _escapeHtml(cell.getValue()) + '" class="button button-secondary button-sm">Edit</a>';
                },
            };

            const attrColumns = group.attributes.map((attr, index) => ({
                title: attr.name,
                field: 'attr_' + index,
                minWidth: 150,
                formatter: function (cell) {
                    const value = cell.getValue();
                    return value ? _escapeHtml(value) : '<span class="attr-empty">&mdash;</span>';
                },
            }));

            if (attrColumns.length === 0) {
                attrColumns.push({ title: 'Job ID', field: 'id', width: 90, hozAlign: 'center' });
            }

            return [actions, ...attrColumns, { title: 'Created', field: 'created_at', minWidth: 160 }];
        },

        destroyTables() {
            Object.values(this.tables).forEach((table) => {
                if (table && typeof table.destroy === 'function') {
                    table.destroy();
                }
            });
            this.tables = {};
        },
    };
};

// Job Type

window.jobTypeTable = function () {
    return {
        table: null,

        init() {
            this.initTable();
        },

        initTable() {
            const el = document.getElementById('job-type-table');
            if (!el || typeof Tabulator === 'undefined') {
                return;
            }

            this.table = new Tabulator(el, {
                ajaxURL: '/job-types/data',
                layout: 'fitColumns',
                responsiveLayout: 'collapse',
                pagination: true,
                paginationMode: 'local',
                paginationSize: 10,
                paginationSizeSelector: PAGE_SIZES,
                movableColumns: true,
                placeholder: 'No job types found.',
                initialSort: [{ column: 'name', dir: 'asc' }],
                columns: [
                    {
                        title: 'Actions',
                        field: 'id',
                        width: 160,
                        hozAlign: 'center',
                        headerSort: false,
                        formatter: function (cell) {
                            const id = cell.getValue();
                            return '<a href="/job-types/' + id + '/edit" class="button button-secondary button-sm">Edit</a> ' +
                                   '<button onclick="window.deleteJobType(' + id + ')" class="button button-danger button-sm">Delete</button>';
                        },
                    },
                    { title: 'Name', field: 'name', minWidth: 200 },
                    {
                        title: 'Attributes',
                        field: 'attributes_summary',
                        minWidth: 240,
                        formatter: function (cell) {
                            const v = cell.getValue();
                            return v ? '<span class="attr-summary">' + _escapeHtml(v) + '</span>'
                                     : '<span class="attr-empty">&mdash;</span>';
                        },
                    },
                    { title: 'Count',   field: 'attribute_count', hozAlign: 'center', width: 80 },
                    { title: 'Created', field: 'created_at', minWidth: 160 },
                ],
            });
        },

        reloadTable() {
            if (!this.table) {
                this.initTable();
                return;
            }
            this.table.setData('/job-types/data');
        },
    };
};

window.deleteJobType = function (id) {
    if (!confirm('Delete this job type? This cannot be undone.')) {
        return;
    }
    _postDelete('/job-types/' + id + '/delete');
};

window.jobTypeForm = function (initialAttributes) {
    return {
        attributes:    Array.isArray(initialAttributes) ? initialAttributes : [],
        dragIndex:     null,
        dragOverIndex: null,

        addAttribute() {
            this.attributes.push({ name: '', type: 'text', order: this.attributes.length + 1 });
        },

        removeAttribute(index) {
            this.attributes.splice(index, 1);
            this.renumberOrder();
        },

        renumberOrder() {
            this.attributes.forEach(function (attr, i) { attr.order = i + 1; });
        },

        dragStart(event, index) {
            this.dragIndex = index;
            event.dataTransfer.effectAllowed = 'move';
        },

        dragOver(event, index) {
            this.dragOverIndex = index;
        },

        drop(event, index) {
            if (this.dragIndex !== null && this.dragIndex !== index) {
                var moved = this.attributes.splice(this.dragIndex, 1)[0];
                this.attributes.splice(index, 0, moved);
                this.renumberOrder();
            }
            this.dragIndex     = null;
            this.dragOverIndex = null;
        },

        dragEnd() {
            this.dragIndex     = null;
            this.dragOverIndex = null;
        },

        confirmDelete(event) {
            if (confirm('Delete this job type? This cannot be undone.')) {
                event.target.submit();
            }
        },
    };
};

// ── Job ───────────────────────────────────────────────────────────────────────

window.jobTable = function () {
    return {
        table: null,

        init() {
            this.initTable();
        },

        initTable() {
            const el = document.getElementById('job-table');
            if (!el || typeof Tabulator === 'undefined') {
                return;
            }

            this.table = new Tabulator(el, {
                ajaxURL: '/jobs/data',
                layout: 'fitColumns',
                responsiveLayout: 'collapse',
                pagination: true,
                paginationMode: 'local',
                paginationSize: 10,
                paginationSizeSelector: PAGE_SIZES,
                movableColumns: true,
                placeholder: 'No jobs found.',
                initialSort: [{ column: 'job_type_name', dir: 'asc' }],
                columns: [
                    {
                        title: 'Actions',
                        field: 'id',
                        width: 160,
                        hozAlign: 'center',
                        headerSort: false,
                        formatter: function (cell) {
                            const id = cell.getValue();
                            return '<a href="/jobs/' + id + '/edit" class="button button-secondary button-sm">Edit</a> ' +
                                   '<button onclick="window.deleteJob(' + id + ')" class="button button-danger button-sm">Delete</button>';
                        },
                    },
                    { title: 'Campaign',  field: 'campaign_type_name', minWidth: 160 },
                    { title: 'Job Type',  field: 'job_type_name',      minWidth: 160 },
                    {
                        title: 'Attributes',
                        field: 'attributes_summary',
                        minWidth: 220,
                        formatter: function (cell) {
                            const v = cell.getValue();
                            return v ? '<span class="attr-summary">' + _escapeHtml(v) + '</span>'
                                     : '<span class="attr-empty">&mdash;</span>';
                        },
                    },
                    { title: 'Created', field: 'created_at', minWidth: 160 },
                ],
            });
        },

        reloadTable() {
            if (!this.table) {
                this.initTable();
                return;
            }
            this.table.setData('/jobs/data');
        },
    };
};

window.deleteJob = function (id) {
    if (!confirm('Delete this job? This cannot be undone.')) {
        return;
    }
    _postDelete('/jobs/' + id + '/delete');
};

window.jobForm = function (jobTypes, initialTypeId, initialValues) {
    return {
        jobTypes:        jobTypes,
        selectedTypeId:  String(initialTypeId || ''),
        attributeValues: Object.assign({}, initialValues || {}),

        get currentType() {
            var id = this.selectedTypeId;
            if (!id) return null;
            return this.jobTypes.find(function (t) { return String(t.id) === String(id); }) || null;
        },

        get currentAttributes() {
            if (!this.currentType) return [];
            return this.currentType.attributes.slice().sort(function (a, b) {
                return (a.order || 0) - (b.order || 0);
            });
        },

        onTypeChange() {
            this.attributeValues = {};
        },

        inputType(attrType) {
            return ['number', 'date'].includes(attrType) ? attrType : 'text';
        },

        confirmDelete(event) {
            if (confirm('Delete this job? This cannot be undone.')) {
                event.target.submit();
            }
        },
    };
};