import fs from 'node:fs'
import path from 'node:path'
import { fileURLToPath } from 'node:url'

const currentDir = path.dirname(fileURLToPath(import.meta.url))
const pageFile = path.resolve(currentDir, '../index.vue')
const chartPanelFile = path.resolve(currentDir, '../components/SteadyTrendChartPanel.vue')
const trendOptionsFile = path.resolve(currentDir, '../utils/trendOptions.ts')
const payloadFile = path.resolve(currentDir, '../utils/trendPayload.ts')
const interfaceFile = path.resolve(currentDir, '../../../../api/steady/steadyDataView/interface/index.ts')

const read = file => fs.readFileSync(file, 'utf8')

const pageSource = read(pageFile)
const chartPanelSource = read(chartPanelFile)
const trendOptionsSource = read(trendOptionsFile)
const payloadSource = read(payloadFile)
const interfaceSource = read(interfaceFile)

const checks = [
    [
        'steadyDataView imports the day query endpoint for chunked loading',
        /import\s*\{[^}]*querySteadyTrendDay[^}]*\}\s*from\s*'@\/api\/steady\/steadyDataView'/,
        pageSource
    ],
    [
        'steadyDataView routes long ranges through chunked trend loading',
        /isSteadyTrendRangeOverChunkLimit\(payload\.timeStart,\s*payload\.timeEnd\)[\s\S]*querySteadyTrendInChunks/,
        pageSource
    ],
    [
        'steadyDataView prevents stale chunk responses from overwriting newer queries',
        /trendQuerySerial[\s\S]*currentQuerySerial[\s\S]*currentQuerySerial\s*!==\s*trendQuerySerial/,
        pageSource
    ],
    ['chunk helper uses a three day maximum window', /STEADY_TREND_CHUNK_DAYS\s*=\s*3/, payloadSource],
    [
        'long range chunk query initializes a full time range result before data arrives',
        /buildEmptySteadyTrendQueryResult\(payload\.timeStart,\s*payload\.timeEnd\)/,
        pageSource
    ],
    [
        'long range chunk query avoids trend loading overlay',
        /loading\.trend\s*=\s*!isSteadyTrendRangeOverChunkLimit\(payload\.timeStart,\s*payload\.timeEnd\)/,
        pageSource
    ],
    ['chunk helper exports a long range predicate', /export\s+const\s+isSteadyTrendRangeOverChunkLimit/, payloadSource],
    ['chunk helper exports query chunk builder', /export\s+const\s+buildSteadyTrendQueryChunks/, payloadSource],
    ['chunk helper exports incremental result merger', /export\s+const\s+mergeSteadyTrendQueryResult/, payloadSource],
    [
        'chunk helper exports empty range result builder',
        /export\s+const\s+buildEmptySteadyTrendQueryResult/,
        payloadSource
    ],
    ['chunk helper exports no data predicate', /export\s+const\s+hasSteadyTrendResultData/, payloadSource],
    [
        'trend result carries full query time range metadata',
        /queryTimeStart\?:\s*string[\s\S]*queryTimeEnd\?:\s*string/,
        interfaceSource
    ],
    ['chart panel enables missing data by default', /const\s+missingDataEnabled\s*=\s*ref\(true\)/, chartPanelSource],
    [
        'chart panel shows no data state after completed empty query',
        /hasQueriedWithoutData[\s\S]*description="暂无数据"/,
        chartPanelSource
    ],
    [
        'chart options use full query time range for x axis min and max',
        /queryTimeStart[\s\S]*queryTimeEnd[\s\S]*xAxis[\s\S]*min:[\s\S]*max:/,
        trendOptionsSource
    ]
]

const failures = checks.filter(([_name, pattern, source]) => !pattern.test(source))

if (failures.length) {
    console.error('steadyDataView chunked query contract failed:')
    failures.forEach(([name]) => console.error(`- ${name}`))
    process.exit(1)
}

console.log('steadyDataView chunked query contract passed')