From b97a5e415a12f45ffec829cf140c03fe4fdf6a89 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim=20H=C3=A5rek=20Andreassen?= <tim@harek.no>
Date: Thu, 26 Sep 2024 10:07:10 +0200
Subject: [PATCH] feat: Add yr package
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Signed-off-by: Tim Hårek Andreassen <tim@harek.no>
---
 cmd/yr.go | 26 ++++++++--------------
 yr.go     | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+), 17 deletions(-)
 create mode 100644 yr.go

diff --git a/cmd/yr.go b/cmd/yr.go
index 4ae4fb7..c8dc428 100644
--- a/cmd/yr.go
+++ b/cmd/yr.go
@@ -1,29 +1,21 @@
 package main
 
 import (
-	"encoding/json"
 	"fmt"
 
-	"git.sr.ht/~timharek/yr-go/internal/met"
+	"git.sr.ht/~timharek/yr-go"
 )
 
 func main() {
-	m, err := met.New("git.sr.ht/~timharek/yr-go")
+	y, err := yr.New()
 	if err != nil {
-		fmt.Println(err)
-		return
+		panic(err)
+	}
+	now, err := y.Now("bergen")
+	if err != nil {
+		panic(err)
 	}
 
-	forecast, err := m.Forecast(60.389444, 5.33, nil)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-
-	f, err := json.Marshal(forecast)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	fmt.Printf("%s", f)
+	fmt.Printf("Temp: %.4f\n", now.Temperature)
+	fmt.Printf("Rain: %.4f\n", now.Percipitation)
 }
diff --git a/yr.go b/yr.go
new file mode 100644
index 0000000..498436e
--- /dev/null
+++ b/yr.go
@@ -0,0 +1,65 @@
+package yr
+
+import (
+	"cmp"
+	"fmt"
+	"slices"
+
+	"git.sr.ht/~timharek/yr-go/internal/met"
+	"git.sr.ht/~timharek/yr-go/internal/nominatim"
+)
+
+type Client struct {
+	met met.Met
+	nom nominatim.Nominatim
+}
+
+func New() (*Client, error) {
+	siteName := "git.sr.ht/~timharek/yr-go"
+	met, err := met.New(siteName)
+	if err != nil {
+		return nil, err
+	}
+	nom, err := nominatim.New(siteName)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Client{met: *met, nom: *nom}, nil
+}
+
+type NowForecast struct {
+	Temperature   float64
+	Percipitation float64
+}
+
+func (c *Client) Now(q string) (*NowForecast, error) {
+	coords, err := c.nom.Lookup(q)
+	if err != nil {
+		return nil, err
+	}
+
+	f, err := c.met.Forecast(coords.Latitude, coords.Longitude, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	ts := f.Properties.Timeseries
+
+	if len(ts) == 0 {
+		return nil, fmt.Errorf("Forecast unavailable")
+	}
+
+	slices.SortFunc(ts, sortTimeSeries)
+
+	latest := ts[0].Data
+
+	return &NowForecast{
+		Temperature:   latest.Instant.Details.AirTemperature,
+		Percipitation: latest.Next1_Hours.Details.PrecipitationAmount,
+	}, nil
+}
+
+func sortTimeSeries(a, b met.Timeseries) int {
+	return cmp.Compare(a.Time.Unix(), b.Time.Unix())
+}