/**
 * 将标准双 el-card 列表页迁移为 admin-page 架构组件
 * 用法: node scripts/migrate-admin-pages.mjs [--dry-run] [glob...]
 */
import fs from 'node:fs'
import path from 'node:path'
import { fileURLToPath } from 'node:url'

const __dirname = path.dirname(fileURLToPath(import.meta.url))
const viewsRoot = path.join(__dirname, '../src/views')

const dryRun = process.argv.includes('--dry-run')
const extraPaths = process.argv.slice(2).filter((a) => !a.startsWith('--'))

const defaultTargets = [
    'article/lists/index.vue',
    'article/column/index.vue',
    'permission/role/index.vue',
    'permission/menu/index.vue',
    'dev_tools/code/index.vue',
    'setting/dict/type/index.vue',
    'setting/dict/data/index.vue',
    'message/notice/index.vue',
    'message/short_letter/index.vue',
    'fans/index.vue',
    'order/index.vue',
    'asset/user/index.vue',
    'asset/resource/index.vue',
    'finance/balance_details.vue',
    'finance/recharge_record.vue',
    'finance/refund_record.vue'
]

function migrate(content) {
    if (content.includes('admin-page-filter-panel')) return null
    if (!content.includes('el-card class="!border-none"')) return null
    if (!content.includes('<el-table')) return null

    let out = content

    // 根容器 class 清理
    out = out.replace(
        /<div class="[^"]*">\s*\n\s*<el-card class="!border-none" shadow="never">/,
        '<div>\n        <admin-page-filter-panel>'
    )
    if (!out.includes('admin-page-filter-panel')) {
        out = out.replace(
            /<el-card class="!border-none" shadow="never">/,
            '<admin-page-filter-panel>'
        )
    }

    // 第一个 filter card 结束
    out = out.replace(
        /<\/el-form>\s*\n\s*<\/el-card>/,
        '</el-form>\n        </admin-page-filter-panel>'
    )

    // 第二个 data card 开始 - 提取 v-loading
    const loadingMatch = out.match(
        /<el-card([^>]*?)class="[^"]*mt-4[^"]*"[^>]*shadow="never"[^>]*>/
    )
    const altLoadingMatch = out.match(
        /<el-card v-loading="([^"]+)"([^>]*)class="[^"]*mt-4[^"]*"([^>]*)shadow="never"([^>]*)>/
    )

    if (altLoadingMatch) {
        out = out.replace(
            altLoadingMatch[0],
            `<admin-page-data-panel v-loading="${altLoadingMatch[1]}">`
        )
    } else if (loadingMatch) {
        out = out.replace(loadingMatch[0], '<admin-page-data-panel>')
    } else {
        out = out.replace(
            /<el-card class="!border-none mt-4" shadow="never">/,
            '<admin-page-data-panel>'
        )
        out = out.replace(
            /<el-card v-loading="([^"]+)" class="mt-4 !border-none" shadow="never">/,
            '<admin-page-data-panel v-loading="$1">'
        )
        out = out.replace(
            /<el-card v-loading="([^"]+)" class="!border-none mt-4" shadow="never">/,
            '<admin-page-data-panel v-loading="$1">'
        )
    }

    // toolbar: 紧跟 data panel 后的首个 div 包裹按钮
    out = out.replace(
        /(<admin-page-data-panel[^>]*>\s*)<div>\s*\n(\s*<el-button[\s\S]*?<\/div>\s*\n)/,
        '$1<template #toolbar>\n$2</template>\n'
    )
    out = out.replace(
        /(<admin-page-data-panel[^>]*>\s*)<div>\s*\n(\s*<router-link[\s\S]*?<\/div>\s*\n)/,
        '$1<template #toolbar>\n$2</template>\n'
    )

    // 移除 table 前的 mt-4 class
    out = out.replace(/<el-table class="mt-4"/g, '<el-table')
    out = out.replace(/<el-table\s+class="mt-4"\s+/g, '<el-table ')

    // pagination footer
    out = out.replace(
        /<div class="flex(?: mt-4)? justify-end(?: mt-4)?">\s*\n\s*<pagination([^/]*)\/>\s*\n\s*<\/div>\s*\n\s*<\/el-card>/,
        '<template #footer>\n                <pagination$1/>\n            </template>\n        </admin-page-data-panel>'
    )
    out = out.replace(
        /<div class="flex mt-4 justify-end">\s*\n\s*<pagination([^/]*)\/>\s*\n\s*<\/div>\s*\n\s*<\/el-card>/,
        '<template #footer>\n                <pagination$1/>\n            </template>\n        </admin-page-data-panel>'
    )

    // 无 pagination 的 data card 闭合
    if (out.includes('<admin-page-data-panel') && out.includes('</el-card>')) {
        out = out.replace(/<\/el-table>\s*\n\s*<\/el-card>/, '</el-table>\n        </admin-page-data-panel>')
    }

    // table 上的 v-loading 移到 panel（若 panel 还没有）
    out = out.replace(
        /<admin-page-data-panel>\s*\n(\s*)<el-table([^>]*?)v-loading="([^"]+)"([^>]*)>/,
        '<admin-page-data-panel v-loading="$3">\n$1<el-table$2$4>'
    )
    out = out.replace(/<el-table([^>]*?)v-loading="([^"]+)"([^>]*)>/, '<el-table$1$3>')

    if (out === content || !out.includes('admin-page-data-panel')) return null
    return out
}

const targets = extraPaths.length
    ? extraPaths.map((p) => path.resolve(p))
    : defaultTargets.map((p) => path.join(viewsRoot, p))

let migrated = 0
let skipped = 0

for (const file of targets) {
    if (!fs.existsSync(file)) {
        console.warn('skip (missing):', path.relative(viewsRoot, file))
        skipped++
        continue
    }
    const original = fs.readFileSync(file, 'utf8')
    const result = migrate(original)
    if (!result) {
        console.log('skip (no match):', path.relative(viewsRoot, file))
        skipped++
        continue
    }
    if (dryRun) {
        console.log('would migrate:', path.relative(viewsRoot, file))
    } else {
        fs.writeFileSync(file, result, 'utf8')
        console.log('migrated:', path.relative(viewsRoot, file))
    }
    migrated++
}

console.log(`\nDone. migrated=${migrated} skipped=${skipped}${dryRun ? ' (dry-run)' : ''}`)