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class APIPanel {
constructor() {
// 强制单例模式
if (window.apiPanelInstance) {
console.warn('APIPanel: Instance already exists, returning existing one.');
return window.apiPanelInstance;
}
console.log('APIPanel: Creating new instance.');
// 初始化DOM元素引用
this.providerSelect = document.getElementById('api-provider');
this.modelSelect = document.getElementById('api-model');
this.apiKeyInput = document.getElementById('api-key');
// Use a more specific selector if multiple buttons might exist
this.submitButton = document.querySelector('#api-panel .api-submit-btn');
// Check if elements were found
if (!this.providerSelect || !this.modelSelect || !this.apiKeyInput || !this.submitButton) {
console.error("APIPanel: One or more required DOM elements not found during construction.");
}
this.initialized = false;
this.handleSubmit = this.handleSubmit.bind(this);
this.updateModelOptions = this.updateModelOptions.bind(this);
if (this.providerSelect && this.modelSelect) {
this.updateModelOptions();
}
window.apiPanelInstance = this;
console.log('APIPanel: New instance created.');
}
init() {
if (this.initialized) {
console.log('APIPanel: Listeners already initialized, skipping.');
return;
}
if (!this.providerSelect || !this.modelSelect || !this.apiKeyInput || !this.submitButton) {
console.error("APIPanel: Cannot init listeners, required DOM elements missing.");
return;
}
console.log('APIPanel: Initializing event listeners.');
this.setupEventListeners();
this.initialized = true;
console.log('APIPanel: Event listeners initialized successfully.');
}
setupEventListeners() {
// Submit Button Listener
if (this.submitButton) {
this.submitButton.removeEventListener('click', this.handleSubmit);
// Add the listener
this.submitButton.addEventListener('click', this.handleSubmit);
console.log('APIPanel: Submit button listener attached.');
}
// Provider Select Listener
if (this.providerSelect) {
this.providerSelect.removeEventListener('change', this.updateModelOptions);
this.providerSelect.addEventListener('change', this.updateModelOptions);
console.log('APIPanel: Provider select listener attached.');
}
}
updateModelOptions() {
if (!this.providerSelect || !this.modelSelect) {
console.warn('APIPanel: DOM elements missing for updateModelOptions.');
return;
}
const provider = this.providerSelect.value;
const models = {
openai: ['gpt-3.5-turbo', 'gpt-4'],
anthropic: ['claude-3-opus', 'claude-3-sonnet'],
alibaba: ['qwen-turbo', 'qwen-max'],
openrouter: ['gpt-4o-mini']
};
const currentModelValue = this.modelSelect.value;
this.modelSelect.innerHTML = ''; // Clear existing
if (models[provider] && models[provider].length > 0) {
models[provider].forEach(model => {
const option = document.createElement('option');
option.value = model;
option.textContent = model;
this.modelSelect.appendChild(option);
});
// Restore selection if possible
if (models[provider].includes(currentModelValue)) {
this.modelSelect.value = currentModelValue;
}
} else {
// Add placeholder if no models
const option = document.createElement('option');
option.textContent = 'No models available';
option.disabled = true;
this.modelSelect.appendChild(option);
}
}
handleSubmit(event) {
// 防止表单默认提交行为和事件冒泡
event.preventDefault();
event.stopPropagation();
if (APIPanel.isSubmitting) {
console.log('APIPanel: Submission in progress, ignoring duplicate click.');
return;
}
// Check elements exist before proceeding
if (!this.providerSelect || !this.modelSelect || !this.apiKeyInput || !this.submitButton) {
console.error("APIPanel: Cannot handle submit, critical elements missing.");
alert(window.i18n?.get('internalError') ?? '内部错误，无法提交。');
return;
}
// 设置标记，防止短时间内重复提交
APIPanel.isSubmitting = true;
this.submitButton.disabled = true; // Disable button
// Use setTimeout for debounce, not for resetting the flag immediately after fetch starts
const resetButton = () => {
APIPanel.isSubmitting = false;
if (this.submitButton) { // Check if button still exists
this.submitButton.disabled = false;
}
console.log('APIPanel: Submit button re-enabled.');
};
// 获取表单值
const provider = this.providerSelect.value;
const model = this.modelSelect.value;
const apiKey = this.apiKeyInput.value.trim(); // Trim whitespace
// 检查字段是否填写完整
if (!provider || !model || !apiKey) {
const message = window.i18n?.get('fillAllFields') ?? '请填写所有字段！';
alert(message);
resetButton(); // Re-enable button on validation failure
return;
}
const requestData = {
provider: provider,
model: model,
apiKey: apiKey
};
console.log('APIPanel: Sending config data (key hidden):', { provider, model, apiKey: '***' });
// 发送HTTP请求
fetch('/api/save-config', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(requestData)
})
.then(response => {
if (response.ok) {
const message = window.i18n?.get('configSubmitted') ?? '配置已提交到服务器！';
alert(message);
} else {
// Try to get more specific error
response.text().then(text => {
console.error('APIPanel: Submit failed.', response.status, text);
const message = (window.i18n?.get('submitFailed') ?? '提交失败，请检查服务器状态。') + ` (Status: ${response.status})`;
alert(message);
}).catch(() => {
console.error('APIPanel: Submit failed.', response.status);
const message = (window.i18n?.get('submitFailed') ?? '提交失败，请检查服务器状态。') + ` (Status: ${response.status})`;
alert(message);
});
}
})
.catch(error => {
console.error('APIPanel: HTTP request failed:', error);
const message = window.i18n?.get('networkError') ?? '提交失败，请检查网络连接。';
alert(message);
})
.finally(() => {
// Always re-enable the button after fetch completes (success or error)
resetButton();
});
}
}
APIPanel.isSubmitting = false;
window.APIPanel = APIPanel;
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