blogflare/src/lib/server/cloudflare.ts

/* eslint-disable @typescript-eslint/no-explicit-any */
export async function purgeCache(platform: App.Platform | undefined, paths: string[]) {
	// @ts-expect-error Cloudflare env types
	const token = platform?.env?.CF_API_TOKEN;
	// @ts-expect-error Cloudflare env types
	const zoneId = platform?.env?.CF_ZONE_ID;
	const domain = platform?.env?.CF_DOMAIN; // 必须是带协议的绝对域名，如 https://blog.example.com

	if (!token || !zoneId) {
		console.warn('未配置 CF_API_TOKEN 或 CF_ZONE_ID，跳过清除 Cloudflare 缓存');
		return;
	}

	if (!domain) {
		console.warn('未配置 CF_DOMAIN，无法精准拼接 URL，跳过清除缓存以保护其他项目。');
		return;
	}

	// 将路径转换为带域名的绝对 URL，Cloudflare 的 purge_cache(files) 要求必须为绝对 URL
	const urls = paths.map((p) => {
		// 确保拼接正确，防止出现双斜杠或少斜杠
		const cleanDomain = domain.replace(/\/$/, '');
		const cleanPath = p.startsWith('/') ? p : `/${p}`;
		return `${cleanDomain}${cleanPath}`;
	});

	try {
		const body = { files: urls };

		const response = await fetch(
			`https://api.cloudflare.com/client/v4/zones/${zoneId}/purge_cache`,
			{
				method: 'POST',
				headers: {
					'Content-Type': 'application/json',
					Authorization: `Bearer ${token}`
				},
				body: JSON.stringify(body)
			}
		);

		const result = (await response.json()) as any;
		if (result.success) {
			console.log(
				'✅ 成功清除 Cloudflare 缓存',
				urls ? `(URLs: ${urls.join(', ')})` : '(全部缓存)'
			);
		} else {
			console.error('❌ 清除缓存失败:', result.errors);
		}
	} catch (error) {
		console.error('❌ 调用 Cloudflare Purge API 时发生异常:', error);
	}
}

export async function fetchAnalytics(platform: App.Platform | undefined) {
	// @ts-expect-error Cloudflare env types
	const token = platform?.env?.CF_API_TOKEN;
	// @ts-expect-error Cloudflare env types
	const zoneId = platform?.env?.CF_ZONE_ID;
	// @ts-expect-error Cloudflare env types
	const accountId = platform?.env?.CF_ACCOUNT_ID;
	// @ts-expect-error Cloudflare env types
	const d1Id = platform?.env?.CF_D1_ID;
	// @ts-expect-error Cloudflare env types
	const r2Bucket = platform?.env?.CF_R2_BUCKET;

	if (!token || !zoneId) {
		return null;
	}

	const thirtyDaysAgo = new Date(Date.now() - 30 * 24 * 60 * 60 * 1000).toISOString().split('T')[0];

	let accountQuery = '';
	if (accountId) {
		let d1Query = '';
		if (d1Id) {
			d1Query = `
					d1AnalyticsAdaptiveGroups(
						limit: 10000,
						filter: { datetime_geq: "${thirtyDaysAgo}T00:00:00Z", databaseId: "${d1Id}" }
					) {
						sum {
							readQueries
							writeQueries
							rowsRead
							rowsWritten
						}
					}
			`;
		}

		let r2Query = '';
		if (r2Bucket) {
			r2Query = `
					r2StorageAdaptiveGroups(
						limit: 1,
						filter: { datetime_geq: "${thirtyDaysAgo}T00:00:00Z", bucketName: "${r2Bucket}" },
						orderBy: [datetime_DESC]
					) {
						sum {
							payloadSize
						}
					}
			`;
		}

		if (d1Query || r2Query) {
			accountQuery = `
				accounts(filter: { accountTag: "${accountId}" }) {
					${d1Query}
					${r2Query}
				}
			`;
		}
	}

	const query = `
		query {
			viewer {
				zones(filter: { zoneTag: "${zoneId}" }) {
					httpRequests1dGroups(
						limit: 30,
						filter: { date_gt: "${thirtyDaysAgo}" }
						orderBy: [date_ASC]
					) {
						dimensions {
							date
						}
						sum {
							cachedBytes
							bytes
							cachedRequests
							requests
							pageViews
						}
						uniq {
							uniques
						}
					}
				}
				${accountQuery}
			}
		}
	`;

	try {
		const response = await fetch('https://api.cloudflare.com/client/v4/graphql', {
			method: 'POST',
			headers: {
				'Content-Type': 'application/json',
				Authorization: `Bearer ${token}`
			},
			body: JSON.stringify({ query })
		});

		const result = (await response.json()) as any;

		const trafficData = result?.data?.viewer?.zones?.[0]?.httpRequests1dGroups || [];
		const accountData = result?.data?.viewer?.accounts?.[0];

		return {
			traffic: trafficData,
			d1: accountData?.d1AnalyticsAdaptiveGroups || [],
			r2: accountData?.r2StorageAdaptiveGroups || [],
			missingEnvVars: !accountId || !d1Id || !r2Bucket
		};
	} catch (err) {
		console.error('Failed to fetch analytics', err);
		return null;
	}
}