package handlers

import (
	"errors"
	"net/http"

	"github.com/jackc/pgx/v5"

	"wherewoof/frontend/internal/db"
)

// locationData is passed to the owner's location page template.
type locationData struct {
	Lat         float64
	Lng         float64
	FinderPhone string
	TagCode     string
	ScannedAt   string
}

// ServeShort resolves a short code to its scan and renders the owner's
// location page (map embed + finder details).
func (a *App) ServeShort(w http.ResponseWriter, r *http.Request) {
	code := r.PathValue("code")
	sc, err := a.Queries.GetShortCode(r.Context(), code)
	if err != nil {
		http.NotFound(w, r)
		return
	}

	scan, err := a.Queries.GetScanByID(r.Context(), sc.ScanID)
	if err != nil || !scan.Lat.Valid || !scan.Lng.Valid {
		http.NotFound(w, r)
		return
	}

	tag, err := a.Queries.GetTagByID(r.Context(), scan.TagID)
	if err != nil {
		if errors.Is(err, pgx.ErrNoRows) {
			http.NotFound(w, r)
			return
		}
		http.Error(w, "internal error", http.StatusInternalServerError)
		return
	}

	data := locationData{
		Lat:         scan.Lat.Float64,
		Lng:         scan.Lng.Float64,
		FinderPhone: scan.ScannerPhone.String,
		TagCode:     tag.TagCode,
		ScannedAt:   scan.ScannedAt.Time.Local().Format("Mon 2 Jan, 3:04 pm"),
	}
	a.render(w, r, "location", "Location found", data, "")
}

// keep the db import referenced (Tag lookup above uses a.Queries only; this
// guards against accidental removal while the package evolves).
var _ = db.Tag{}