package handlers

import (
	"context"
	"net/http"

	"git.haelnorr.com/h/golib/hws"
	"git.haelnorr.com/h/oslstats/internal/db"
	adminview "git.haelnorr.com/h/oslstats/internal/view/adminview"
	"github.com/pkg/errors"
	"github.com/uptrace/bun"
)

// AdminUsersPage renders the full admin dashboard page with users section
func AdminUsersPage(s *hws.Server, conn *bun.DB) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		var pageOpts *db.PageOpts
		if r.Method == "GET" {
			pageOpts = pageOptsFromQuery(s, w, r)
		} else {
			pageOpts = pageOptsFromForm(s, w, r)
		}
		if pageOpts == nil {
			return
		}

		var users *db.List[db.User]
		if ok := db.WithReadTx(s, w, r, conn, func(ctx context.Context, tx bun.Tx) (bool, error) {
			var err error
			users, err = db.GetUsersWithRoles(ctx, tx, pageOpts)
			if err != nil {
				return false, errors.Wrap(err, "db.GetUsersWithRoles")
			}
			return true, nil
		}); !ok {
			return
		}
		if r.Method == "GET" {
			renderSafely(adminview.DashboardPage(users), s, r, w)
		} else {
			renderSafely(adminview.UserList(users), s, r, w)
		}
	})
}