initial commit

2026-03-09 01:26:52 +01:00
commit 2198c20790
18 changed files with 1942 additions and 0 deletions
--- a/api.go
+++ b/api.go
@@ -0,0 +1,173 @@
+package main
+
+import (
+	"context"
+	"embed"
+	"encoding/json"
+	"errors"
+	"io/fs"
+	"log"
+	"net/http"
+	"os"
+	"sensor_dashboard/db"
+	"time"
+)
+
+//go:embed public
+var staticFiles embed.FS // Holds embedded static files
+
+func Api(queries db.Queries, config Config) (http.Handler, error) {
+
+	mux := http.NewServeMux()
+
+	var publicDir fs.FS
+	if config.ServeFromFS {
+		publicDir = os.DirFS("./public")
+	} else {
+		publicDir, _ = fs.Sub(staticFiles, "public")
+	}
+
+	fileServer := http.FileServer(http.FS(publicDir))
+
+	mux.Handle("/humidity", GetHumidityLogByDate(queries, config))
+	mux.Handle("/power", GetPowerLogByDate(queries, config))
+	mux.Handle("/state", GetSwitchStateLogByDate(queries, config))
+	mux.Handle("/tags", GetTags(queries, config))
+
+	mux.Handle("/", fileServer)
+
+	return mux, nil
+}
+
+func tagAndDateFromQuery(r *http.Request) (string, time.Time, error) {
+	q := r.URL.Query()
+	tag := q.Get("tag")
+	startDateStr := q.Get("from")
+	now := time.Now()
+
+	if tag == "" {
+		return "", now, errors.New("no tag specified")
+	}
+
+	var startDate time.Time
+	if startDateStr == "" || startDateStr == "null" {
+		startDate = now.AddDate(0, 0, -7)
+	} else {
+		startDate, _ = time.Parse("2006-01-02T15:04:05Z", startDateStr)
+	}
+
+	return tag, startDate, nil
+}
+
+func GetTags(queries db.Queries, config Config) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+
+		rows, err := queries.ListDevices(context.Background())
+
+		if err != nil {
+			http.Error(w, "500 Internal Server Error", http.StatusInternalServerError)
+			log.Printf("Error: %v", err)
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+
+		if err := json.NewEncoder(w).Encode(rows); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			log.Printf("Error encoding JSON: %v", err)
+		}
+
+	})
+}
+
+func GetPowerLogByDate(queries db.Queries, config Config) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		tag, startDate, err := tagAndDateFromQuery(r)
+
+		if err != nil {
+			http.Error(w, "400 Bad Request", http.StatusBadRequest)
+			log.Println(err)
+			return
+		}
+
+		rows, err := queries.PowerLogForDeviceToDate(context.Background(), db.PowerLogForDeviceToDateParams{
+			Tag:      tag,
+			FromTime: startDate,
+			ToTime:   time.Now(),
+		})
+
+		if err != nil {
+			http.Error(w, "500 Internal Server Error", http.StatusInternalServerError)
+			log.Printf("Error: %v", err)
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+
+		if err := json.NewEncoder(w).Encode(rows); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			log.Printf("Error encoding JSON: %v", err)
+		}
+
+	})
+}
+
+func GetSwitchStateLogByDate(queries db.Queries, config Config) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		tag, startDate, err := tagAndDateFromQuery(r)
+
+		if err != nil {
+			http.Error(w, "400 Bad Request", http.StatusBadRequest)
+			log.Println(err)
+			return
+		}
+
+		rows, err := queries.SwitchStateLogForDeviceToDate(context.Background(), db.SwitchStateLogForDeviceToDateParams{
+			Tag:      tag,
+			FromTime: startDate,
+			ToTime:   time.Now(),
+		})
+
+		if err != nil {
+			http.Error(w, "500 Internal Server Error", http.StatusInternalServerError)
+			log.Printf("Error: %v", err)
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+
+		if err := json.NewEncoder(w).Encode(rows); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			log.Printf("Error encoding JSON: %v", err)
+		}
+
+	})
+}
+
+func GetHumidityLogByDate(queries db.Queries, config Config) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		tag, startDate, err := tagAndDateFromQuery(r)
+
+		if err != nil {
+			http.Error(w, "400 Bad Request", http.StatusBadRequest)
+			log.Println(err)
+			return
+		}
+
+		rows, err := queries.HumidityLogForDeviceToDate(context.Background(), db.HumidityLogForDeviceToDateParams{
+			Tag:      tag,
+			FromTime: startDate,
+			ToTime:   time.Now(),
+		})
+
+		if err != nil {
+			http.Error(w, "500 Internal Server Error", http.StatusInternalServerError)
+			log.Printf("Error: %v", err)
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+
+		if err := json.NewEncoder(w).Encode(rows); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			log.Printf("Error encoding JSON: %v", err)
+		}
+
+	})
+}