Haystack/backend/logs.go
2025-05-08 09:52:04 +01:00

150 lines
3.1 KiB
Go

package main
import (
"context"
"database/sql"
"fmt"
"io"
"net/http"
"os"
"time"
"screenmark/screenmark/.gen/haystack/haystack/model"
. "screenmark/screenmark/.gen/haystack/haystack/table"
"github.com/go-chi/chi/v5"
. "github.com/go-jet/jet/v2/postgres"
"github.com/robert-nix/ansihtml"
"github.com/charmbracelet/log"
"github.com/google/uuid"
"github.com/muesli/termenv"
)
type DatabaseWriter struct {
dbPool *sql.DB
imageId uuid.UUID
}
func (w *DatabaseWriter) Write(p []byte) (n int, err error) {
if len(p) == 0 {
return 0, nil
}
insertLogStmt := Logs.
INSERT(Logs.Log, Logs.ImageID).
VALUES(string(p), w.imageId)
_, err = insertLogStmt.Exec(w.dbPool)
if err != nil {
return 0, err
} else {
return len(p), nil
}
}
func (w *DatabaseWriter) GetImageLogs(ctx context.Context, imageId uuid.UUID) ([]string, error) {
getImageLogsStmt := Logs.
SELECT(Logs.Log).
WHERE(Logs.ImageID.EQ(UUID(imageId)))
logs := []model.Logs{}
err := getImageLogsStmt.QueryContext(ctx, w.dbPool, &logs)
if err != nil {
return []string{}, err
}
stringLogs := make([]string, len(logs))
for i, log := range logs {
stringLogs[i] = log.Log
}
return stringLogs, nil
}
func createLogHandler(logWriter *DatabaseWriter) func(r chi.Router) {
return func(r chi.Router) {
r.Get("/{imageId}", func(w http.ResponseWriter, r *http.Request) {
stringImageId := r.PathValue("imageId")
imageId, err := uuid.Parse(stringImageId)
if err != nil {
w.WriteHeader(http.StatusBadGateway)
return
}
logs, err := logWriter.GetImageLogs(r.Context(), imageId)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
}
html := ""
imageTag := fmt.Sprintf(`<image src="http://localhost:3040/image/%s">`, stringImageId)
for _, log := range logs {
html += fmt.Sprintf("<div>%s</div>", string(ansihtml.ConvertToHTML([]byte(log)))+"\n")
}
css := `
<style>
body {
background-color: #1e1e1e;
color: #f0f0f0;
font-family: sans-serif;
line-height: 1.6;
margin: 0;
padding: 20px;
}
/* Basic styling for code blocks often used for logs */
pre {
background-color: #2a2a2a;
padding: 1em;
border-radius: 4px;
overflow-x: auto;
border: 1px solid #444;
}
code {
font-family: monospace;
}
</style>
`
fullHtml := fmt.Sprintf("<html><head><title>Logs</title>%s</head><body>%s%s</body></html>", css, imageTag, html)
w.Header().Add("Content-Type", "text/html")
w.Write([]byte(fullHtml))
w.WriteHeader(http.StatusOK)
})
}
}
func newDatabaseWriter(dbPool *sql.DB, imageId uuid.UUID) *DatabaseWriter {
return &DatabaseWriter{
dbPool: dbPool,
imageId: imageId,
}
}
func createDbStdoutWriter(dbPool *sql.DB, imageId uuid.UUID) io.Writer {
return io.MultiWriter(os.Stdout, newDatabaseWriter(dbPool, imageId))
}
func createLogger(prefix string, writer io.Writer) *log.Logger {
logger := log.NewWithOptions(writer, log.Options{
ReportTimestamp: true,
TimeFormat: time.Kitchen,
Prefix: prefix,
Formatter: log.TextFormatter,
})
logger.SetColorProfile(termenv.TrueColor)
logger.SetLevel(log.DebugLevel)
return logger
}