438 lines
14 KiB
Go
438 lines
14 KiB
Go
package server
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import (
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"fmt"
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"net/http"
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"strconv"
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"strings"
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"time"
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"weatherstation/core/internal/data"
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)
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import "github.com/gin-gonic/gin"
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func handleHealth(c *gin.Context) {
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c.JSON(http.StatusOK, gin.H{"status": "ok", "ts": time.Now().UTC().Format(time.RFC3339)})
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}
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func handleSystemStatus(c *gin.Context) {
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online := data.OnlineDevices()
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c.JSON(http.StatusOK, gin.H{
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"online_devices": online,
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"server_time": time.Now().Format("2006-01-02 15:04:05"),
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})
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}
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func handleStations(c *gin.Context) {
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stations, err := data.Stations()
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("query stations failed: %v", err)})
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return
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}
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for i := range stations {
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if len(stations[i].StationID) > 6 {
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hexID := stations[i].StationID[len(stations[i].StationID)-6:]
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if decimalID, err := strconv.ParseInt(hexID, 16, 64); err == nil {
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stations[i].DecimalID = strconv.FormatInt(decimalID, 10)
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}
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}
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}
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c.JSON(http.StatusOK, stations)
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}
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func handleData(c *gin.Context) {
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idParam := c.Query("hex_id")
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startTime := c.Query("start_time")
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endTime := c.Query("end_time")
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interval := c.DefaultQuery("interval", "1hour")
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if idParam == "" {
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c.JSON(http.StatusBadRequest, gin.H{"error": "missing hex_id"})
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return
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}
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upper := strings.ToUpper(idParam)
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var b strings.Builder
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for i := 0; i < len(upper); i++ {
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ch := upper[i]
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if (ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'F') {
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b.WriteByte(ch)
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}
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}
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hex := b.String()
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if hex == "" {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid hex_id"})
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return
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}
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if len(hex) < 6 {
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hex = strings.Repeat("0", 6-len(hex)) + hex
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} else if len(hex) > 6 {
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hex = hex[len(hex)-6:]
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}
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stationID := fmt.Sprintf("RS485-%s", hex)
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loc, _ := time.LoadLocation("Asia/Shanghai")
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if loc == nil {
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loc = time.FixedZone("CST", 8*3600)
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}
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start, err := time.ParseInLocation("2006-01-02 15:04:05", startTime, loc)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid start_time"})
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return
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}
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end, err := time.ParseInLocation("2006-01-02 15:04:05", endTime, loc)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid end_time"})
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return
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}
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var points interface{}
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if interval == "raw" {
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points, err = data.SeriesRaw(stationID, start, end)
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} else {
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points, err = data.SeriesFrom10Min(stationID, start, end, interval)
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}
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("query failed: %v", err)})
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return
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}
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c.JSON(http.StatusOK, points)
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}
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func handleForecast(c *gin.Context) {
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stationID := c.Query("station_id")
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from := c.Query("from")
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to := c.Query("to")
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provider := c.Query("provider")
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versionsStr := c.DefaultQuery("versions", "1")
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versions, _ := strconv.Atoi(versionsStr)
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if versions <= 0 {
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versions = 1
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}
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if stationID == "" {
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c.JSON(http.StatusBadRequest, gin.H{"error": "missing station_id"})
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return
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}
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loc, _ := time.LoadLocation("Asia/Shanghai")
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if loc == nil {
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loc = time.FixedZone("CST", 8*3600)
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}
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var start, end time.Time
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var err error
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if from == "" || to == "" {
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now := time.Now().In(loc)
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start = now.Truncate(time.Hour).Add(1 * time.Hour)
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end = start.Add(3 * time.Hour)
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} else {
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start, err = time.ParseInLocation("2006-01-02 15:04:05", from, loc)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid from"})
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return
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}
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end, err = time.ParseInLocation("2006-01-02 15:04:05", to, loc)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid to"})
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return
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}
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}
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points, err := data.Forecast(stationID, start, end, provider, versions)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("query forecast failed: %v", err)})
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return
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}
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c.JSON(http.StatusOK, points)
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}
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// handleForecastPerf 过去N天大雨预报表现
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// GET /api/forecast/perf?station_id=RS485-XXXXXX&days=30&provider=imdroid_mix
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func handleForecastPerf(c *gin.Context) {
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stationID := c.Query("station_id")
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if stationID == "" {
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c.JSON(http.StatusBadRequest, gin.H{"error": "missing station_id"})
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return
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}
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daysStr := c.DefaultQuery("days", "30")
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provider := c.Query("provider")
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days, _ := strconv.Atoi(daysStr)
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if days <= 0 || days > 365 {
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days = 30
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}
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loc, _ := time.LoadLocation("Asia/Shanghai")
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if loc == nil {
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loc = time.FixedZone("CST", 8*3600)
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}
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now := time.Now().In(loc)
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since := now.AddDate(0, 0, -days)
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perf, err := data.HeavyRainPerf(stationID, since, provider)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("query perf failed: %v", err)})
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return
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}
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c.JSON(http.StatusOK, perf)
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}
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// handleTSPage renders a very simple HTML page to query TS metrics by station and compare providers (+1/+2/+3/mixed).
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// Route: GET /TS?station_id=RS485-XXXXXX&start=YYYY-MM-DD+HH:MM:SS&end=YYYY-MM-DD+HH:MM:SS&threshold=0.1
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func handleTSPage(c *gin.Context) {
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stationID := c.Query("station_id")
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startStr := c.Query("start")
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endStr := c.Query("end")
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thrStr := c.DefaultQuery("threshold", "0.1")
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providerSel := c.DefaultQuery("provider", "all")
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viewSel := c.DefaultQuery("view", "all")
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detailSel := c.DefaultQuery("detail", "none")
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loc, _ := time.LoadLocation("Asia/Shanghai")
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if loc == nil {
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loc = time.FixedZone("CST", 8*3600)
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}
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now := time.Now().In(loc)
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// defaults: last 30 days
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start := now.AddDate(0, 0, -30).Truncate(time.Hour)
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end := now.Truncate(time.Hour)
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if strings.TrimSpace(startStr) != "" {
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if t, err := time.ParseInLocation("2006-01-02 15:04:05", startStr, loc); err == nil {
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start = t
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}
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}
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if strings.TrimSpace(endStr) != "" {
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if t, err := time.ParseInLocation("2006-01-02 15:04:05", endStr, loc); err == nil {
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end = t
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}
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}
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if !end.After(start) {
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end = start.Add(24 * time.Hour)
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}
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thr, _ := strconv.ParseFloat(thrStr, 64)
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// Providers to compare or single
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allProviders := []string{"imdroid_V6", "imdroid_V5", "imdroid_mix", "caiyun", "open-meteo", "imdroid"}
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var providers []string
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if providerSel == "all" || strings.TrimSpace(providerSel) == "" {
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providers = allProviders
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} else {
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providers = []string{providerSel}
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}
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// Build HTML
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var b strings.Builder
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b.WriteString("<html><head><meta charset=\"utf-8\"></head><body>")
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b.WriteString("<h2>TS</h2>")
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b.WriteString("<form method='GET' action='/TS'>")
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b.WriteString("站点ID: <input type='text' name='station_id' value='" + htmlEscape(stationID) + "' style='width:180px'> ")
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b.WriteString("开始: <input type='text' name='start' value='" + start.Format("2006-01-02 15:04:05") + "' style='width:180px'> ")
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b.WriteString("结束: <input type='text' name='end' value='" + end.Format("2006-01-02 15:04:05") + "' style='width:180px'> ")
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// 阈值固定为默认值，不在页面提供输入框
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// provider select
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b.WriteString("预报源: <select name='provider'>")
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opts := append([]string{"all"}, allProviders...)
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for _, p := range opts {
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sel := ""
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if p == providerSel {
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sel = " selected"
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}
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b.WriteString("<option value='" + htmlEscape(p) + "'" + sel + ">" + htmlEscape(p) + "</option>")
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}
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b.WriteString("</select> ")
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// forecast point(select fixed lead or all)
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b.WriteString("预报点: <select name='view'>")
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viewOpts := []struct {
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v string
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n string
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}{{"all", "所有(+1/+2/+3)"}, {"lead1", "+1h"}, {"lead2", "+2h"}, {"lead3", "+3h"}}
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for _, it := range viewOpts {
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sel := ""
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if it.v == viewSel {
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sel = " selected"
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}
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b.WriteString("<option value='" + it.v + "'" + sel + ">" + it.n + "</option>")
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}
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b.WriteString("</select> ")
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// detail select
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b.WriteString("详细: <select name='detail'>")
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detOpts := []struct {
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v string
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n string
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}{{"none", "不显示"}, {"brief", "简略"}, {"detailed", "详细"}}
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for _, it := range detOpts {
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sel := ""
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if it.v == detailSel {
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sel = " selected"
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}
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b.WriteString("<option value='" + it.v + "'" + sel + ">" + it.n + "</option>")
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}
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b.WriteString("</select> ")
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b.WriteString("<button type='submit'>搜索</button></form>")
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// Helper: common station IDs for quick input
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b.WriteString("<div style='margin:8px 0;'>站点：</div>")
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b.WriteString("<table border='1' cellpadding='6' cellspacing='0'>")
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b.WriteString("<tr><th>station_id</th><th>location</th></tr>")
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b.WriteString("<tr><td>RS485-002A44</td><td>第二台气象站(伶俐镇那车1号大桥西北约324米)</td></tr>")
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b.WriteString("<tr><td>RS485-0029CD</td><td>第四台气象站(宾阳县宾州镇塘山2号大桥西北约293米)</td></tr>")
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b.WriteString("<tr><td>RS485-0029CA</td><td>第五台气象站(宾阳县陈平镇和平3号大桥东北约197米)</td></tr>")
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b.WriteString("<tr><td>RS485-0029C3</td><td>第七台气象站(宾阳县细塘村东南约112米)</td></tr>")
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b.WriteString("<tr><td>RS485-002A30</td><td>第八台气象站(宾阳县松塘村西南约161米)</td></tr>")
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b.WriteString("<tr><td>RS485-002964</td><td>兴山县一号气象站(湖北省宜昌市兴山县昭君镇贺家院子东北约484米)</td></tr>")
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b.WriteString("<tr><td>RS485-002A39</td><td>兴山县二号气象站(湖北省宜昌市兴山县昭君镇黄家堑东北约244米)</td></tr>")
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b.WriteString("<tr><td>RS485-002A69</td><td>第一台气象站(宾阳县陈平镇大平村西南约325米)(V6使用彩云为基础数据)</td></tr>")
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b.WriteString("<tr><td>RS485-002A7B</td><td>第三台气象站(宾阳县细坡西南约263米)(V6使用彩云为基础数据)</td></tr>")
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b.WriteString("</table><hr/>")
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if strings.TrimSpace(stationID) == "" {
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b.WriteString("</body></html>")
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c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(b.String()))
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return
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}
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// header + legend
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b.WriteString("<div>时间窗: " + start.Format("2006-01-02 15:04:05") + " ~ " + end.Format("2006-01-02 15:04:05") + "</div>")
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b.WriteString("<div style='margin:6px 0;color:#444;'>说明：n 为样本数；n11 为预报降雨且实况降雨（Hit）；n01 为预报不降雨但实况降雨（漏报）；n10 为预报降雨但实况不降雨（误报）；n00 为预报与实况均不降雨。CSI 为临界成功指数，POD 为命中率，FAR 为误报率。</div>")
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b.WriteString("<table border='1' cellpadding='6' cellspacing='0'>")
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b.WriteString("<tr><th>Provider</th><th>预报点</th><th>n</th><th>n11</th><th>n01</th><th>n10</th><th>n00</th><th>CSI</th><th>POD</th><th>FAR</th></tr>")
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addRow := func(pv, view string, s data.BinaryScores) {
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b.WriteString(fmt.Sprintf("<tr><td>%s</td><td>%s</td><td>%d</td><td>%d</td><td>%d</td><td>%d</td><td>%d</td><td>%.3f</td><td>%.3f</td><td>%.3f</td></tr>",
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htmlEscape(pv), htmlEscape(view), s.N, s.N11, s.N01, s.N10, s.N00, s.CSI, s.POD, s.FAR))
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}
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var renderScores func(pv, view string)
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renderScores = func(pv, view string) {
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switch view {
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case "lead1":
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if s, err := data.ForecastBinaryScoresLead(stationID, start, end, pv, thr, 1); err == nil {
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addRow(pv, "+1h", s)
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} else {
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addRow(pv, "+1h", data.BinaryScores{})
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}
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case "lead2":
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if s, err := data.ForecastBinaryScoresLead(stationID, start, end, pv, thr, 2); err == nil {
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addRow(pv, "+2h", s)
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} else {
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addRow(pv, "+2h", data.BinaryScores{})
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}
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case "lead3":
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if s, err := data.ForecastBinaryScoresLead(stationID, start, end, pv, thr, 3); err == nil {
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addRow(pv, "+3h", s)
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} else {
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addRow(pv, "+3h", data.BinaryScores{})
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}
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case "all":
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renderScores(pv, "lead1")
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renderScores(pv, "lead2")
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renderScores(pv, "lead3")
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}
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}
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for _, pv := range providers {
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renderScores(pv, viewSel)
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}
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b.WriteString("</table>")
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// detail view only when a single provider and single view selected
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if providerSel != "all" && viewSel != "all" && (detailSel == "brief" || detailSel == "detailed") {
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var rows []data.BinaryRow
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var err error
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switch viewSel {
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case "lead1":
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rows, err = data.ForecastBinarySeriesLead(stationID, start, end, providerSel, 1)
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case "lead2":
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rows, err = data.ForecastBinarySeriesLead(stationID, start, end, providerSel, 2)
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case "lead3":
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rows, err = data.ForecastBinarySeriesLead(stationID, start, end, providerSel, 3)
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}
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if err == nil {
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b.WriteString("<h3>明细 (" + htmlEscape(providerSel) + ", " + htmlEscape(viewSel) + ")</h3>")
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b.WriteString("<table border='1' cellpadding='6' cellspacing='0'>")
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b.WriteString("<tr><th>编号</th><th>时间</th><th>实况(mm)</th><th>预报(mm)</th><th>发生?</th><th>命中?</th></tr>")
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var n, n11, n01, n10, n00 int64
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idx := 0
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for _, r := range rows {
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actualEvt := r.ActualMM > thr
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predEvt := r.PredMM > thr
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if detailSel == "brief" && !(actualEvt || predEvt) {
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continue
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}
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idx++
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n++
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if predEvt && actualEvt {
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n11++
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} else if !predEvt && actualEvt {
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n01++
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} else if predEvt && !actualEvt {
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n10++
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} else {
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n00++
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}
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hit := "否"
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if predEvt && actualEvt {
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hit = "是"
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}
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b.WriteString(fmt.Sprintf("<tr><td>%d</td><td>%s</td><td>%.3f</td><td>%.3f</td><td>%s</td><td>%s</td></tr>", idx, r.T.Format("2006-01-02 15:04:05"), r.ActualMM, r.PredMM, boolCN(actualEvt), hit))
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}
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var csi, pod, far float64
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h, m, f := float64(n11), float64(n01), float64(n10)
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if (h + m + f) > 0 {
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csi = h / (h + m + f)
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}
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if (h + m) > 0 {
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pod = h / (h + m)
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}
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if (h + f) > 0 {
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far = f / (h + f)
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}
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b.WriteString("</table>")
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b.WriteString(fmt.Sprintf("<div>统计: n=%d n11=%d n01=%d n10=%d n00=%d | CSI=%.3f POD=%.3f FAR=%.3f</div>", n, n11, n01, n10, n00, csi, pod, far))
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}
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}
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b.WriteString("</body></html>")
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c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(b.String()))
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}
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func htmlEscape(s string) string {
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r := strings.NewReplacer("&", "&", "<", "<", ">", ">", "\"", """, "'", "'")
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return r.Replace(s)
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}
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func boolCN(b bool) string {
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if b {
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return "是"
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}
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return "否"
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}
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// handleForecastScores 过去N天的二分类评分（TS/CSI, POD, FAR）
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// GET /api/forecast/scores?station_id=RS485-XXXXXX&days=30&provider=imdroid_mix&threshold=0
|
||
func handleForecastScores(c *gin.Context) {
|
||
stationID := c.Query("station_id")
|
||
if stationID == "" {
|
||
c.JSON(http.StatusBadRequest, gin.H{"error": "missing station_id"})
|
||
return
|
||
}
|
||
daysStr := c.DefaultQuery("days", "30")
|
||
provider := c.Query("provider")
|
||
thrStr := c.DefaultQuery("threshold", "0")
|
||
days, _ := strconv.Atoi(daysStr)
|
||
if days <= 0 || days > 365 {
|
||
days = 30
|
||
}
|
||
thresholdMM, _ := strconv.ParseFloat(thrStr, 64)
|
||
|
||
loc, _ := time.LoadLocation("Asia/Shanghai")
|
||
if loc == nil {
|
||
loc = time.FixedZone("CST", 8*3600)
|
||
}
|
||
now := time.Now().In(loc)
|
||
since := now.AddDate(0, 0, -days)
|
||
|
||
scores, err := data.ForecastBinaryScores(stationID, since, now, provider, thresholdMM)
|
||
if err != nil {
|
||
c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("query scores failed: %v", err)})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, scores)
|
||
}
|