import type { CustomTabBarItem, CustomTabBarItemBadge } from './types'
import { reactive } from 'vue'

import { tabbarList as _tabbarList, customTabbarEnable, selectedTabbarStrategy, TABBAR_STRATEGY_MAP } from './config'

// TODO 1/2: 中间的鼓包tabbarItem的开关
const BULGE_ENABLE = false

/** tabbarList 里面的 path 从 pages.config.ts 得到 */
const tabbarList = reactive<CustomTabBarItem[]>(_tabbarList.map(item => ({
    ...item,
    pagePath: item.pagePath.startsWith('/') ? item.pagePath : `/${item.pagePath}`,
})))

if (customTabbarEnable && BULGE_ENABLE) {
    if (tabbarList.length % 2) {
        console.error('有鼓包时 tabbar 数量必须是偶数，否则样式很奇怪！！')
    }
    tabbarList.splice(tabbarList.length / 2, 0, {
        isBulge: true,
    } as CustomTabBarItem)
}

export function isPageTabbar(path: string) {
    if (selectedTabbarStrategy === TABBAR_STRATEGY_MAP.NO_TABBAR) {
        return false
    }
    const _path = path.split('?')[0]
    return tabbarList.some(item => item.pagePath === _path)
}

/**
 * 自定义 tabbar 的状态管理，原生 tabbar 无需关注本文件
 * tabbar 状态，增加 storageSync 保证刷新浏览器时在正确的 tabbar 页面
 * 使用reactive简单状态，而不是 pinia 全局状态
 */
const tabbarStore = reactive({
    curIdx: uni.getStorageSync('app-tabbar-index') || 0,
    prevIdx: uni.getStorageSync('app-tabbar-index') || 0,
    setCurIdx(idx: number) {
        this.curIdx = idx
        uni.setStorageSync('app-tabbar-index', idx)
    },
    setTabbarItemBadge(idx: number, badge: CustomTabBarItemBadge) {
        if (tabbarList[idx]) {
            tabbarList[idx].badge = badge
        }
    },
    setAutoCurIdx(path: string) {
        // '/' 当做首页
        if (path === '/') {
            this.setCurIdx(0)
            return
        }
        const index = tabbarList.findIndex(item => item.pagePath === path)
        // console.log('tabbarList:', tabbarList)
        if (index === -1) {
            const pagesPathList = getCurrentPages().map(item => item.route.startsWith('/') ? item.route : `/${item.route}`)
            // console.log(pagesPathList)
            const flag = tabbarList.some(item => pagesPathList.includes(item.pagePath))
            if (!flag) {
                this.setCurIdx(0)
                return
            }
        }
        else {
            this.setCurIdx(index)
        }
    },
    restorePrevIdx() {
        if (this.prevIdx === this.curIdx)
            return
        this.setCurIdx(this.prevIdx)
        this.prevIdx = uni.getStorageSync('app-tabbar-index') || 0
    },
})

export { tabbarList, tabbarStore }