morffix/server/stats.go
Samuel Lorch 38219f7b07
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Add Stats Chart
2024-07-13 03:33:43 +02:00

86 lines
2.4 KiB
Go

package server
import (
"bytes"
"html/template"
"log/slog"
"net/http"
"git.lastassault.de/speatzle/morffix/constants"
"github.com/go-echarts/go-echarts/v2/charts"
"github.com/go-echarts/go-echarts/v2/opts"
"github.com/go-echarts/go-echarts/v2/types"
"github.com/jackc/pgx/v5"
)
type StatsDisplay struct {
CodecCounts []CodecCount
Element template.HTML
Script template.HTML
}
type CodecCount struct {
Codec string
Count int
}
func handleStats(w http.ResponseWriter, r *http.Request) {
data := StatsDisplay{}
rows, err := db.Query(r.Context(), `SELECT COALESCE(jsonb_path_query_first(ffprobe_data, '$.streams[*] ? (@.codec_type == "video") ? (@.disposition.attached_pic == 0).codec_name')::text, 'Unknown') AS codec, COUNT(*) AS count FROM files WHERE ffprobe_data IS NOT NULL GROUP BY jsonb_path_query_first(ffprobe_data, '$.streams[*] ? (@.codec_type == "video") ? (@.disposition.attached_pic == 0).codec_name');`)
if err != nil {
slog.ErrorContext(r.Context(), "Query Stats", "err", err)
http.Error(w, "Error Query Stats: "+err.Error(), http.StatusInternalServerError)
return
}
codecCounts, err := pgx.CollectRows[CodecCount](rows, pgx.RowToStructByName[CodecCount])
if err != nil {
slog.ErrorContext(r.Context(), "Collect Rows", "err", err)
http.Error(w, "Error Query Libraries: "+err.Error(), http.StatusInternalServerError)
return
}
data.CodecCounts = codecCounts
chartData := []opts.PieData{}
for _, c := range codecCounts {
chartData = append(chartData, opts.PieData{
Name: c.Codec,
Value: c.Count,
})
}
pie := charts.NewPie()
pie.SetGlobalOptions(
charts.WithInitializationOpts(opts.Initialization{
Theme: types.ThemePurplePassion,
}),
charts.WithTitleOpts(opts.Title{
Title: "Codecs",
}))
pie.AddSeries("Codecs", chartData).SetSeriesOptions(charts.WithLabelOpts(
opts.Label{
Show: opts.Bool(true),
Formatter: "{b}: {c}",
Color: "white",
}),
)
snippet := pie.RenderSnippet()
data.Element = template.HTML(snippet.Element)
data.Script = template.HTML(snippet.Script)
buf := bytes.Buffer{}
err = templates.ExecuteTemplate(&buf, constants.STATS_TEMPLATE_NAME, data)
if err != nil {
slog.ErrorContext(r.Context(), "Executing Stats Template", "err", err)
http.Error(w, "Error Executing Template: "+err.Error(), http.StatusInternalServerError)
return
}
_, err = w.Write(buf.Bytes())
if err != nil {
slog.ErrorContext(r.Context(), "Writing http Response", "err", err)
}
}