// Auto-extracted from backup-page.js (verbatim) — augments BackupPage.prototype. Loaded after the base.
Object.assign(BackupPage.prototype, {
    openLocationModal_unused(idx) {
        const loc = (this.locations?.locations || []).find(l => l.idx === idx);
        if (!loc) return;

        const modal = document.getElementById('backup-location-modal');
        const body = document.getElementById('backup-location-modal-body');
        const title = document.getElementById('backup-location-modal-title');
        if (!modal || !body) return;

        modal.dataset.locIdx = idx;
        title.textContent = `Edit location: ${loc.name}`;

        body.innerHTML = `
            <div class="config-category backup-location-config" data-section="location-${idx}">
                <div id="backup-location-connection"></div>
            </div>
            <div class="config-category backup-location-config">
                <h3>Retention</h3>
                <p class="category-description">When to delete old backups from this location.</p>
                <div id="backup-location-retention"></div>
            </div>
        `;

        this.refreshLocationModalTypeFields(loc.type, loc);
        this.refreshLocationModalRetention(loc.custom_retention);

        modal.classList.add('open');
    },
    refreshLocationModalTypeFields(type, locOverride) {
        const container = document.getElementById('backup-location-connection');
        const modal = document.getElementById('backup-location-modal');
        if (!container || !modal) return;
        const idx = parseInt(modal.dataset.locIdx, 10);
        const loc = locOverride || (this.locations?.locations || []).find(l => l.idx === idx) || {};

        const suffixes = this.locFieldsForType(type);
        container.innerHTML = this.renderLocFields(idx, suffixes, loc);
        this.tagFieldsForSave(container);
    },
    refreshLocationModalRetention(enabled) {
        const container = document.getElementById('backup-location-retention');
        const modal = document.getElementById('backup-location-modal');
        if (!container || !modal) return;
        const idx = parseInt(modal.dataset.locIdx, 10);
        const loc = (this.locations?.locations || []).find(l => l.idx === idx) || {};

        // The "Use custom retention" toggle itself stays at the top regardless.
        const toggleField = this.renderLocFields(idx, ['CUSTOM_RETENTION'], loc);

        if (!enabled) {
            container.innerHTML = `
                ${toggleField}
                <div class="backup-card-hint" style="margin-top:8px">Inherits the <strong>global retention policy</strong> from the Configuration tab.</div>
            `;
            this.tagFieldsForSave(container);
            return;
        }

        const values = {
            last:    loc.keep_last    || '',
            daily:   loc.keep_daily   || '',
            weekly:  loc.keep_weekly  || '',
            monthly: loc.keep_monthly || '',
            yearly:  loc.keep_yearly  || ''
        };
        container.innerHTML = `
            ${toggleField}
            ${this.formRetention(`CFG_BACKUP_LOC_${idx}_`, values)}
        `;
        this.tagFieldsForSave(container);
    },
    async saveLocationModal() {
        const modal = document.getElementById('backup-location-modal');
        if (!modal) return;
        const idx = parseInt(modal.dataset.locIdx, 10);
        this.closeAllModals();
        await this.saveSection(`location-${idx}`);
    },
    async deleteLocationModal() {
        const modal = document.getElementById('backup-location-modal');
        if (!modal) return;
        const idx = parseInt(modal.dataset.locIdx, 10);
        const loc = (this.locations?.locations || []).find(l => l.idx === idx);
        const name = loc?.name || `Location ${idx}`;
        if (!confirm(`Delete location "${name}"?\n\nBackup data already stored at this location is not deleted by this action — only LibrePortal's reference to it. The password file on disk also stays in place (rename it manually if you want to start fresh).`)) return;
        this.closeAllModals();
        await this.runTask(`libreportal backup location remove ${idx}`, 'backup', null);
        setTimeout(() => this.reloadAfterSave(), 2000);
    },
    openAddLocationModal() {
        const modal = document.getElementById('backup-add-location-modal');
        const body = document.getElementById('backup-add-location-modal-body');
        if (!modal || !body) return;
        body.innerHTML = `
            <div class="backup-form-grid">
                ${this.formSelect('__add_type', 'Type', 'local', [
                    ['local',  'Local / mounted path'],
                    ['sftp',   'SFTP'],
                    ['rest',   'REST server'],
                    ['s3',     'S3'],
                    ['b2',     'Backblaze B2'],
                    ['gs',     'Google Cloud Storage'],
                    ['azure',  'Azure'],
                    ['rclone', 'rclone']
                ])}
                ${this.formInput('__add_name', 'Friendly name', '', 'text', 'e.g. Office NAS')}
            </div>
            <p class="backup-card-hint" style="margin-top:12px">The location starts disabled — fill in its connection details on the next screen, then toggle Enabled.</p>
        `;
        modal.classList.add('open');
    },
    async confirmAddLocation() {
        const modal = document.getElementById('backup-add-location-modal');
        if (!modal) return;
        const name = modal.querySelector('[name="__add_name"]')?.value?.trim();
        const type = modal.querySelector('[name="__add_type"]')?.value || 'local';
        if (!name) { this.notify('Name is required.', 'error'); return; }
        this.closeAllModals();
        const safeName = name.replace(/'/g, "'\\''");
        await this.runTask(`libreportal backup location add '${safeName}' ${type}`, 'backup', null);
        setTimeout(() => this.reloadAfterSave(), 2000);
    },
});