// frontend/js/pages/keys/deleteApiModal.js

import { modalManager } from '../../components/ui.js';
import { taskCenterManager, toastManager } from '../../components/taskCenter.js';
import { apiKeyManager } from '../../components/apiKeyManager.js';
import { isValidApiKeyFormat } from '../../utils/utils.js';

export default class DeleteApiModal {
    constructor({ onDeleteSuccess }) {
        this.modalId = 'delete-api-modal';
        this.onDeleteSuccess = onDeleteSuccess;
        this.activeGroupId = null;

        this.elements = {
            modal: document.getElementById(this.modalId),
            textarea: document.getElementById('api-delete-textarea'),
            deleteBtn: document.getElementById(this.modalId).querySelector('.modal-btn-danger'),
        };

        if (!this.elements.modal) {
            throw new Error(`Modal with id "${this.modalId}" not found.`);
        }

        this._initEventListeners();
    }

    open(activeGroupId) {
        if (!activeGroupId) {
            console.error("Cannot open DeleteApiModal: activeGroupId is required.");
            return;
        }
        this.activeGroupId = activeGroupId;
        this._reset();
        modalManager.show(this.modalId);
    }

    _initEventListeners() {
        this.elements.deleteBtn?.addEventListener('click', this._handleSubmit.bind(this));
        
        const closeAction = () => {
            this._reset();
            modalManager.hide(this.modalId);
        };
        
        const closeTriggers = this.elements.modal.querySelectorAll(`[data-modal-close="${this.modalId}"]`);
        closeTriggers.forEach(trigger => trigger.addEventListener('click', closeAction));
        this.elements.modal.addEventListener('click', (event) => {
            if (event.target === this.elements.modal) closeAction();
        });
    }

    async _handleSubmit(event) {
        event.preventDefault();
        const cleanedKeys = this._parseAndCleanKeys(this.elements.textarea.value);
        if (cleanedKeys.length === 0) {
            alert('没有检测到有效的API Keys。');
            return;
        }
        this.elements.deleteBtn.disabled = true;
        this.elements.deleteBtn.innerHTML = `<i class="fas fa-spinner fa-spin mr-2"></i>正在启动...`;
        const deleteKeysTask = {
            start: async () => {
                const response = await apiKeyManager.unlinkKeysFromGroup(this.activeGroupId, cleanedKeys.join('\n'));
                if (!response.success || !response.data) throw new Error(response.message || '启动解绑任务失败。');
                return response.data;
            },
            poll: async (taskId) => {
                return await apiKeyManager.getTaskStatus(taskId, { noCache: true });
            },
            renderTaskCenterItem: (data, timestamp, formatTimeAgo) => {
                const timeAgo = formatTimeAgo(timestamp);
                let contentHtml = '';
                if (!data.is_running && !data.error) { // --- SUCCESS state ---
                    const result = data.result || {};
                    const unlinked = result.unlinked_count || 0;
                    const deleted = result.hard_deleted_count || 0;
                    const notFound = result.not_found_count || 0;
                    const totalInput = data.total;
                    const summaryTitle = `解绑 ${unlinked} Key，清理 ${deleted}`;
                    
                    // [MODIFIED] Applied Flexbox layout for proper spacing.
                    contentHtml = `
                        <div class="task-item-main">
                            <div class="task-item-icon-summary text-green-500"><i class="fas fa-check-circle"></i></div>
                            <div class="task-item-content flex-grow">
                                <div class="flex justify-between items-center cursor-pointer" data-task-toggle>
                                    <p class="task-item-title">${summaryTitle}</p>
                                    <i class="fas fa-chevron-down task-toggle-icon"></i>
                                </div>
                                <div class="task-details-content collapsed" data-task-content>
                                    <div class="task-details-body space-y-1">
                                        <p class="flex justify-between"><span>有效输入:</span> <span class="font-semibold">${totalInput}</span></p>
                                        <p class="flex justify-between"><span>未在分组中找到:</span> <span class="font-semibold">${notFound}</span></p>
                                        <p class="flex justify-between"><span>从分组中解绑:</span> <span class="font-semibold">${unlinked}</span></p>
                                        <p class="flex justify-between font-bold"><span>彻底清理孤立Key:</span> <span>${deleted}</span></p>
                                    </div>
                                </div>
                            </div>
                        </div>
                    `;
                } else if (!data.is_running && data.error) { // --- ERROR state ---
                    // [MODIFIED] Applied Flexbox layout for proper spacing.
                    contentHtml = `
                        <div class="task-item-main">
                            <div class="task-item-icon-summary text-red-500"><i class="fas fa-times-circle"></i></div>
                            <div class="task-item-content flex-grow">
                                <p class="task-item-title">批量删除失败</p>
                                <p class="task-item-status text-red-500 truncate" title="${data.error || '未知错误'}">
                                    ${data.error || '未知错误'}
                                </p>
                            </div>
                        </div>`;
                } else { // --- RUNNING state ---
                    // [MODIFIED] Applied Flexbox layout with gap for spacing.
                    // [FIX] Replaced 'fa-spin' with Tailwind's 'animate-spin' for reliable animation.
                    contentHtml = `
                        <div class="task-item-main gap-3">
                            <div class="task-item-icon task-item-icon-running"><i class="fas fa-spinner animate-spin"></i></div>
                            <div class="task-item-content flex-grow">
                                <p class="task-item-title">批量删除 ${data.total} 个API Key</p>
                                <p class="task-item-status">运行中...</p>
                            </div>
                        </div>`;
                }
                return `${contentHtml}<div class="task-item-timestamp">${timeAgo}</div>`;
            },
            // he Toast is now solely responsible for showing real-time progress.
            renderToastNarrative: (data, oldData, toastManager) => {
                const toastId = `task-${data.id}`;
                const progress = data.total > 0 ? (data.processed / data.total) * 100 : 0;
                // It just reports the current progress, that's its only job.
                toastManager.showProgressToast(toastId, `批量删除Key`, '处理中', progress); // (Change title for delete modal)
            },
            
            // This now ONLY shows the FINAL summary toast, after everything else is done.
            onSuccess: (data) => {
                if (this.onDeleteSuccess) this.onDeleteSuccess(); // (Or onDeleteSuccess)
                const newlyLinked = data.result?.newly_linked_count || 0; // (Or unlinked_count)
                toastManager.show(`任务完成！成功删除 ${newlyLinked} 个Key。`, 'success'); // (Adjust text for delete)
            },
            
            // This is the final error handler.
            onError: (data) => {
                toastManager.show(`任务失败: ${data.error || '未知错误'}`, 'error');
            }
        };
        taskCenterManager.startTask(deleteKeysTask);
        
        modalManager.hide(this.modalId);
        this._reset();
    }
  
    _reset() {
        this.elements.textarea.value = '';
        this.elements.deleteBtn.disabled = false;
        this.elements.deleteBtn.innerHTML = '删除';
    }

    _parseAndCleanKeys(text) {
        const keys = text.replace(/[,;]/g, ' ').split(/[\s\n]+/);
        const cleanedKeys = keys.map(key => key.trim()).filter(key => isValidApiKeyFormat(key));
        return [...new Set(cleanedKeys)];
    }
}