const GITEE_LATEST_RELEASE_API = 'https://gitee.com/api/v5/repos/li-hua-88/scanapp/releases/latest'
const AUTO_UPDATE_CHECK_DATE_KEY = 'scanapp_auto_update_check_date'

export function getCurrentAppVersion() {
	// #ifdef APP-PLUS
	return plus.runtime.version || '1.0.0'
	// #endif
	try {
		return uni.getSystemInfoSync().appVersion || '1.0.0'
	} catch (error) {
		return '1.0.0'
	}
}

export function compareVersions(leftVersion, rightVersion) {
	const left = String(leftVersion || '0').replace(/^v/i, '').split('.')
	const right = String(rightVersion || '0').replace(/^v/i, '').split('.')
	const length = Math.max(left.length, right.length)
	for (let index = 0; index < length; index += 1) {
		const leftPart = Number(left[index] || 0)
		const rightPart = Number(right[index] || 0)
		if (leftPart > rightPart) return 1
		if (leftPart < rightPart) return -1
	}
	return 0
}

export function getReleaseUpdateInfo(release) {
	const latestVersion = String(release?.tag_name || release?.name || '').replace(/^v/i, '')
	if (!latestVersion) throw new Error('未获取到有效的版本号')
	const apkAsset = (release.assets || []).find((asset) => /\.apk(?:\?|$)/i.test(asset.name || asset.browser_download_url || ''))
	return {
		latestVersion,
		apkUrl: apkAsset?.browser_download_url || '',
		releaseUrl: release.html_url || 'https://gitee.com/li-hua-88/scanapp/releases/latest',
		updateNote: String(release.body || '修复已知问题并优化使用体验').replace(/\r?\n/g, '\n').trim()
	}
}

export function getTodayUpdateCheckKey() {
	const now = new Date()
	const year = now.getFullYear()
	const month = String(now.getMonth() + 1).padStart(2, '0')
	const day = String(now.getDate()).padStart(2, '0')
	return `${year}-${month}-${day}`
}

export function shouldAutoCheckForUpdate() {
	return uni.getStorageSync(AUTO_UPDATE_CHECK_DATE_KEY) !== getTodayUpdateCheckKey()
}

export function markAutoUpdateChecked() {
	uni.setStorageSync(AUTO_UPDATE_CHECK_DATE_KEY, getTodayUpdateCheckKey())
}


export function getLatestRelease() {
	return new Promise((resolve, reject) => {
		uni.request({
			url: GITEE_LATEST_RELEASE_API,
			method: 'GET',
			timeout: 15000,
			header: {
				Accept: 'application/json'
			},
			success: (res) => {
				let release = res.data
				if (typeof release === 'string') {
					try {
						release = JSON.parse(release)
					} catch (error) {
						release = null
					}
				}
				if (res.statusCode >= 200 && res.statusCode < 300 && release && typeof release === 'object') {
					resolve(release)
					return
				}
				reject(new Error(`更新服务请求失败（HTTP ${res.statusCode || 0}）`))
			},
			fail: () => reject(new Error('无法连接更新服务，请检查网络后重试'))
		})
	})
}