morffix/server/task.go
2024-05-05 01:32:51 +02:00

110 lines
3.2 KiB
Go

package server
import (
"bytes"
"context"
"fmt"
"log/slog"
"net/http"
"git.lastassault.de/speatzle/morffix/constants"
"github.com/jackc/pgx/v5"
)
type TaskData struct {
Libraries []Library
Tasks []Task
}
func handleTask(w http.ResponseWriter, r *http.Request) {
if r.Method == "POST" {
err := createTask(r.Context(), r)
if err != nil {
slog.ErrorContext(r.Context(), "Create Task", "err", err)
http.Error(w, "Error Create Library: "+err.Error(), http.StatusInternalServerError)
return
}
}
data := TaskData{}
rows, err := db.Query(r.Context(), "SELECT id, name, path, enable FROM libraries WHERE enable = $1", true)
if err != nil {
slog.ErrorContext(r.Context(), "Query Libraries", "err", err)
http.Error(w, "Error Query Libraries: "+err.Error(), http.StatusInternalServerError)
return
}
libraries, err := pgx.CollectRows[Library](rows, pgx.RowToStructByName[Library])
if err != nil {
slog.ErrorContext(r.Context(), "Collect Rows", "err", err)
http.Error(w, "Error Query Libraries: "+err.Error(), http.StatusInternalServerError)
return
}
data.Libraries = libraries
rows, err = db.Query(r.Context(), "SELECT t.id AS id, l.id AS library, t.worker_id AS worker, t.type AS type, t.status AS status, f.path AS file FROM tasks t INNER JOIN files f ON f.id = t.file_id INNER JOIN libraries l ON l.id = f.library_id")
if err != nil {
slog.ErrorContext(r.Context(), "Query Tasks", "err", err)
http.Error(w, "Error Query Tasks: "+err.Error(), http.StatusInternalServerError)
return
}
tasks, err := pgx.CollectRows[Task](rows, pgx.RowToStructByName[Task])
if err != nil {
slog.ErrorContext(r.Context(), "Collect Tasks", "err", err)
http.Error(w, "Error Query Tasks: "+err.Error(), http.StatusInternalServerError)
return
}
data.Tasks = tasks
buf := bytes.Buffer{}
err = templates.ExecuteTemplate(&buf, constants.TASK_TEMPLATE_NAME, data)
if err != nil {
slog.ErrorContext(r.Context(), "Executing Task 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)
}
}
func createTask(ctx context.Context, r *http.Request) error {
err := r.ParseForm()
if err != nil {
return fmt.Errorf("Parseing Form: %w", err)
}
library := r.FormValue("library")
typ := r.FormValue("type")
slog.Info("Got Task Create", "library", library, "type", typ)
rows, err := db.Query(r.Context(), "SELECT id, path, size, missing FROM files where library_id = $1 AND missing = $2", library, false)
if err != nil {
return fmt.Errorf("Query Files: %w", err)
}
files, err := pgx.CollectRows[File](rows, pgx.RowToStructByName[File])
if err != nil {
return fmt.Errorf("Collect Files: %w", err)
}
tx, err := db.Begin(ctx)
if err != nil {
return fmt.Errorf("Begin Transaction: %w", err)
}
defer tx.Rollback(ctx)
for _, file := range files {
_, err = db.Exec(r.Context(), "INSERT INTO tasks (file_id, type, status) VALUES ($1,$2,$3)", file.ID, typ, 0)
if err != nil {
return fmt.Errorf("Inserting Task: %w", err)
}
}
err = tx.Commit(ctx)
if err != nil {
return fmt.Errorf("Committing Transcation: %w", err)
}
return nil
}