107 lines
2.6 KiB
Go
107 lines
2.6 KiB
Go
package handlers
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import (
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"database/sql"
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"net/http"
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"time"
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"veola/internal/db"
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"veola/templates"
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)
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func (a *App) GetDashboard(w http.ResponseWriter, r *http.Request) {
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d, err := a.dashboardData(r)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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render(w, r, templates.Dashboard(d))
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}
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func (a *App) GetDashboardRefresh(w http.ResponseWriter, r *http.Request) {
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d, err := a.dashboardData(r)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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// Render only the inner block by reusing the full body component; the
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// outer hx-swap="outerHTML" replaces the same wrapper. The full Dashboard
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// template is overkill but keeps a single source of truth.
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render(w, r, templates.Dashboard(d))
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}
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func (a *App) dashboardData(r *http.Request) (templates.DashboardData, error) {
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stats, err := a.Store.GetDashboardStats(r.Context())
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if err != nil {
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return templates.DashboardData{}, err
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}
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results, err := a.Store.ListResults(r.Context(), db.ResultsQuery{Limit: 20})
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if err != nil {
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return templates.DashboardData{}, err
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}
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itemNames := map[int64]string{}
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all, _ := a.Store.ListItems(r.Context())
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for _, it := range all {
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itemNames[it.ID] = it.Name
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}
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rrs := make([]templates.ResultRow, 0, len(results))
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for _, r := range results {
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rrs = append(rrs, templates.ResultRow{
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ItemID: r.ItemID,
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ItemName: itemNames[r.ItemID],
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Title: r.Title,
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Price: r.Price,
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Currency: r.Currency,
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Source: r.Source,
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URL: r.URL,
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FoundAt: r.FoundAt,
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Alerted: r.Alerted,
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})
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}
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alerts, err := alertsRecent(a, r, itemNames)
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if err != nil {
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return templates.DashboardData{}, err
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}
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return templates.DashboardData{
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Page: a.page(r, "Dashboard", "dashboard"),
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Stats: stats,
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RecentResults: rrs,
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RecentAlerts: alerts,
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}, nil
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}
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func alertsRecent(a *App, r *http.Request, itemNames map[int64]string) ([]templates.AlertRow, error) {
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rows, err := a.Store.DB.QueryContext(r.Context(), `
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SELECT item_id, price, currency, found_at FROM results
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WHERE alerted = 1 ORDER BY found_at DESC LIMIT 5
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`)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var out []templates.AlertRow
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for rows.Next() {
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var (
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itemID int64
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price sql.NullFloat64
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currency string
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foundAt time.Time
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)
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if err := rows.Scan(&itemID, &price, ¤cy, &foundAt); err != nil {
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return nil, err
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}
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var p *float64
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if price.Valid {
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v := price.Float64
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p = &v
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}
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out = append(out, templates.AlertRow{
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ItemName: itemNames[itemID],
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Price: p,
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Currency: currency,
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FoundAt: foundAt,
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})
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}
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return out, rows.Err()
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}
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