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feat: Implement dashboard utility functions for weather data processing, localization, and chart data preparation.

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This commit is contained in:
2569718930@qq.com
2026-03-16 10:08:48 +08:00
parent 1ebd07ca31
commit 6a229a592b
1 changed files with 96 additions and 14 deletions
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frontend/lib/dashboard-utils.ts
+96 -14
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@@ -501,14 +501,96 @@ export function computeFrontTrendSignal(
precipMax: 0,
score: 0,
summary: isEnglish(locale)
? "Insufficient 48h structured data. Keep baseline monitoring."
: "未来 48 小时结构化数据不足，暂时只保留基础监控。",
? "Insufficient intraday structured data. Keep baseline monitoring."
: "当日日内结构化数据不足，暂时只保留基础监控。",
weatherGovPeriods: [] as ReturnType<typeof getForecastTextForDate>,
};
}
const first = slice[0];
const last = slice[slice.length - 1];
const normalizeHm = (value: unknown): string | null => {
const match = String(value || "").match(/(\d{1,2}):(\d{2})/);
if (!match) return null;
const hour = Number.parseInt(match[1], 10);
const minute = Number.parseInt(match[2], 10);
if (
!Number.isFinite(hour) ||
!Number.isFinite(minute) ||
hour < 0 ||
hour > 23 ||
minute < 0 ||
minute > 59
) {
return null;
}
return `${String(hour).padStart(2, "0")}:${String(minute).padStart(2, "0")}`;
};
const hmToMinutes = (value: string | null) => {
if (!value) return null;
const [hourPart, minutePart] = value.split(":");
const hour = Number.parseInt(hourPart || "", 10);
const minute = Number.parseInt(minutePart || "", 10);
if (
!Number.isFinite(hour) ||
!Number.isFinite(minute) ||
hour < 0 ||
hour > 23 ||
minute < 0 ||
minute > 59
) {
return null;
}
return hour * 60 + minute;
};
const pointMinutes = (point: { label?: string }) =>
hmToMinutes(normalizeHm(point.label));
const isTargetToday = dateStr === detail.local_date;
const currentHm = normalizeHm(detail.local_time);
const sunsetHm = normalizeHm(detail.forecast?.sunset);
const currentMinutes = hmToMinutes(currentHm);
const sunsetMinutes = hmToMinutes(sunsetHm);
const canUseSunsetWindow =
isTargetToday &&
currentMinutes !== null &&
sunsetMinutes !== null &&
sunsetMinutes > currentMinutes;
const futureSlice =
isTargetToday && currentMinutes !== null
? slice.filter((point) => {
const minutes = pointMinutes(point);
return minutes === null ? true : minutes >= currentMinutes;
})
: slice;
const untilSunsetSlice =
canUseSunsetWindow && sunsetMinutes !== null
? futureSlice.filter((point) => {
const minutes = pointMinutes(point);
return minutes === null ? false : minutes <= sunsetMinutes;
})
: futureSlice;
const workingSlice =
untilSunsetSlice.length >= 2
? untilSunsetSlice
: futureSlice.length >= 2
? futureSlice
: slice;
const usingSunsetWindow = canUseSunsetWindow && untilSunsetSlice.length >= 2;
const first = workingSlice[0] || slice[0];
const last = workingSlice[workingSlice.length - 1] || slice[slice.length - 1];
const effectiveHours = Math.max(1, workingSlice.length);
const windowLabel = `${first?.label || "--"}-${last?.label || "--"}`;
const windowText = isEnglish(locale)
? usingSunsetWindow
? `today ${windowLabel} (~${effectiveHours}h, now -> sunset)`
: isTargetToday
? `today ${windowLabel} (~${effectiveHours}h)`
: `daily ${windowLabel} (~${effectiveHours}h)`
: usingSunsetWindow
? `今日 ${windowLabel}（约 ${effectiveHours} 小时，当前至日落）`
: isTargetToday
? `今日 ${windowLabel}（约 ${effectiveHours} 小时）`
: `当日日内 ${windowLabel}（约 ${effectiveHours} 小时）`;
const firstTemp = Number.isFinite(Number(first.temp)) ? Number(first.temp) : currentTemp;
const lastTemp = Number.isFinite(Number(last.temp)) ? Number(last.temp) : firstTemp;
const tempDelta =
@@ -604,8 +686,8 @@ export function computeFrontTrendSignal(
{
label: isEnglish(locale) ? "Temperature delta" : "温度变化",
note: isEnglish(locale)
? "Open-Meteo upcoming hourly temperature change"
: "Open-Meteo 未来小时温度变化",
? `Official Open-Meteo hourly data; window: ${windowText}`
: `官方 Open-Meteo 小时数据；计算窗口：${windowText}`,
tone: tempDelta >= 0.8 ? "warm" : tempDelta <= -0.8 ? "cold" : "",
value: formatDelta(tempDelta, detail.temp_symbol),
},
@@ -628,8 +710,8 @@ export function computeFrontTrendSignal(
{
label: isEnglish(locale) ? "Wind-direction evolution" : "风向演变",
note: isEnglish(locale)
? "Focus on switch to southerly or northerly flow"
: "关注是否转南风或转北风",
? "Warming-favor: S/SW; cooling-favor: N/NW"
: "增温有利：南/西南风；降温有利：北/西北风",
value: `${bucketLabel(firstBucket, locale)} -> ${bucketLabel(lastBucket, locale)}`,
},
{
@@ -657,15 +739,15 @@ export function computeFrontTrendSignal(
summary:
label === warmLabel
? isEnglish(locale)
? "Southerly flow strengthens with rising dew point and temperature. Next 6-48h leans warm advection."
: "风向更偏南 / 西南，露点与温度整体抬升，未来 6-48 小时偏向暖平流。"
? `Southerly flow strengthens with rising dew point and temperature. ${windowText} leans warm advection.`
: `风向更偏南 / 西南，露点与温度整体抬升，${windowText}偏向暖平流。`
: label === coldLabel
? isEnglish(locale)
? "Temperature declines with pressure rebound and/or northerly shift. Next 6-48h leans cold-front suppression."
: "温度下滑、气压回升或风向转北，未来 6-48 小时更像冷锋或冷平流压制。"
? `Temperature declines with pressure rebound and/or northerly shift. ${windowText} leans cold-front suppression.`
: `温度下滑、气压回升或风向转北，${windowText}更像冷锋或冷平流压制。`
: isEnglish(locale)
? "Structured trend layer mainly uses weather.gov and Open-Meteo for 6-48h warm/cold flow judgement."
: "结构化来源以 weather.gov 和 Open-Meteo 为主，用于判断未来 6-48 小时冷暖平流趋势。",
? `Structured trend uses weather.gov + Open-Meteo, with core judgement focused on ${windowText}.`
: `结构化来源以 weather.gov 和 Open-Meteo 为主，核心判断窗口为${windowText}。`,
weatherGovPeriods,
};
}