package server

import (
	"net/http"

	"github.com/go-chi/chi/v5"

	"git.hubris.network/dtoro/artifacto/internal/store"
)

type loginData struct {
	Error string
	Next  string
}

func (s *Server) getLogin(w http.ResponseWriter, r *http.Request) {
	// If already logged in, send to dashboard.
	if c, err := r.Cookie("artifacto_admin"); err == nil && s.admin.Verify(c.Value) {
		http.Redirect(w, r, "/", http.StatusSeeOther)
		return
	}
	s.render(w, "login", loginData{Next: r.URL.Query().Get("next")})
}

func (s *Server) postLogin(w http.ResponseWriter, r *http.Request) {
	if err := r.ParseForm(); err != nil {
		http.Error(w, "bad form", http.StatusBadRequest)
		return
	}
	pw := r.FormValue("password")
	if !s.admin.VerifyPassword(pw) {
		s.render(w, "login", loginData{Error: "wrong password", Next: r.FormValue("next")})
		return
	}
	s.admin.SetCookie(w)
	next := r.FormValue("next")
	if next == "" {
		next = "/"
	}
	http.Redirect(w, r, next, http.StatusSeeOther)
}

func (s *Server) postLogout(w http.ResponseWriter, r *http.Request) {
	s.admin.ClearCookie(w)
	http.Redirect(w, r, "/login", http.StatusSeeOther)
}

type dashboardData struct {
	BaseURL   string
	Stats     store.DashboardStats
	Items     []store.ListItem
	FlashSlug string // newly-created slug, for copy-link affordance
}

func (s *Server) getDashboard(w http.ResponseWriter, r *http.Request) {
	items, err := s.store.ListArtifacts()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	stats, err := s.store.Dashboard()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	s.render(w, "dashboard", dashboardData{
		BaseURL:   s.cfg.BaseURL,
		Stats:     stats,
		Items:     items,
		FlashSlug: r.URL.Query().Get("new"),
	})
}

func (s *Server) deleteArtifact(w http.ResponseWriter, r *http.Request) {
	slug := chi.URLParam(r, "slug")
	if err := s.store.DeleteArtifact(slug); err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	// HTMX removes the row on 200; non-HTMX redirects home.
	if r.Header.Get("HX-Request") == "true" {
		w.WriteHeader(http.StatusOK)
		return
	}
	http.Redirect(w, r, "/", http.StatusSeeOther)
}