77 lines
2.2 KiB
TypeScript
77 lines
2.2 KiB
TypeScript
/**
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* 获取电站节点图表数据API
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* 根据节点ID和图表类型获取应力或温度历史数据
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*/
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export default defineEventHandler(async (event) => {
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try {
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const query = getQuery(event)
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// 获取必需参数
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const nodeId = query.nodeId as string
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const chartType = query.type as 'stress' | 'temp'
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if (!nodeId) {
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throw createError({
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statusCode: 400,
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statusMessage: '缺少必要参数: nodeId',
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})
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}
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if (!chartType || !['stress', 'temp'].includes(chartType)) {
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throw createError({
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statusCode: 400,
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statusMessage: '缺少必要参数: type (必须为 stress 或 temp)',
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})
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}
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// 模拟数据生成（基于数据库结构）
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// 实际项目中这里应该连接真实数据库查询
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const dates = []
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const values = []
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const now = new Date()
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// 生成最近30天的数据
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for (let i = 0; i < 30; i++) {
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const date = new Date(now.getTime() - (29 - i) * 24 * 60 * 60 * 1000)
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dates.push(date.toISOString().split('T')[0])
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if (chartType === 'stress') {
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// 应力数据：100-150 MPa，模拟真实应力变化
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const baseStress = 120 + Math.sin(i * 0.2) * 10
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const randomVariation = (Math.random() - 0.5) * 20
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values.push(Math.round((baseStress + randomVariation) * 10) / 10)
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} else {
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// 温度数据：560-580°C，模拟真实温度变化
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const baseTemp = 570 + Math.sin(i * 0.15) * 5
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const randomVariation = (Math.random() - 0.5) * 10
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values.push(Math.round((baseTemp + randomVariation) * 10) / 10)
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}
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}
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// 返回图表数据
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const result = {
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dates,
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values,
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unit: chartType === 'stress' ? 'MPa' : '°C',
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name: chartType === 'stress' ? '历史应力 (Stress)' : '历史温度 (Temp)',
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nodeId,
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chartType,
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}
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return {
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success: true,
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data: result,
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message: '成功获取图表数据',
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timestamp: new Date().toISOString(),
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}
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} catch (error) {
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console.error('获取图表数据失败:', error)
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throw createError({
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statusCode: error.statusCode || 500,
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statusMessage: error.message || '获取图表数据失败',
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})
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}
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}) |