package web

import (
	"log"
	"net/http"
	"strings"
	"time"

	"github.com/Jaculabilis/intake/core"
	"github.com/Jaculabilis/intake/web/html"
)

func (env *Env) getItem(writer http.ResponseWriter, req *http.Request) {
	source := req.PathValue("source")
	id := req.PathValue("id")

	item, err := core.GetItem(env.db, source, id)
	if err != nil {
		http.Error(writer, err.Error(), 500)
		return
	}
	html.Item(writer, html.ItemData{Item: item})
}

func (env *Env) deleteItem(writer http.ResponseWriter, req *http.Request) {
	source := req.PathValue("source")
	id := req.PathValue("id")

	_, err := core.DeactivateItem(env.db, source, id)
	if err != nil {
		http.Error(writer, err.Error(), 500)
		return
	}
	item, err := core.GetItem(env.db, source, id)
	if err != nil {
		http.Error(writer, err.Error(), 500)
		return
	}
	html.Item(writer, html.ItemData{Item: item})
}

func (env *Env) doAction(writer http.ResponseWriter, req *http.Request) {
	source := req.PathValue("source")
	id := req.PathValue("id")
	action := req.PathValue("action")

	state, err := core.GetState(env.db, source)
	if err != nil {
		log.Fatalf("error: failed to load state for %s: %v", source, err)
	}

	item, err := core.GetItem(env.db, source, id)
	if err != nil {
		http.Error(writer, err.Error(), 500)
		return
	}

	if item.Action[action] == nil {
		http.Error(writer, "no such action", 500)
		return
	}

	argv, err := core.GetArgvForAction(env.db, source, action)
	if err != nil {
		http.Error(writer, err.Error(), 500)
		return
	}

	newItem, newState, err := core.ExecuteItemAction(item, argv, nil, state, time.Minute)
	if err != nil {
		http.Error(writer, err.Error(), 500)
		return
	}

	if err = core.UpdateItems(env.db, []core.Item{newItem}); err != nil {
		http.Error(writer, err.Error(), 500)
		return
	}

	if err = core.SetState(env.db, source, newState); err != nil {
		log.Fatalf("error: failed to set state for %s: %v", source, err)
	}

	html.Item(writer, html.ItemData{Item: newItem})
}

func (env *Env) massDeactivate(writer http.ResponseWriter, req *http.Request) {
	if err := req.ParseForm(); err != nil {
		log.Printf("error parsing form data: %v", err)
		http.Error(writer, "", http.StatusBadRequest)
		return
	}
	for _, item := range req.PostForm["items"] {
		i := strings.Index(item, "/")
		if i == -1 {
			log.Printf("error: invalid source/item: %s", item)
			http.Error(writer, "", http.StatusBadRequest)
			return
		}
	}
	for _, item := range req.PostForm["items"] {
		i := strings.Index(item, "/")
		source := item[:i]
		id := item[i+1:]
		active, err := core.DeactivateItem(env.db, source, id)
		if err != nil {
			log.Printf("error: failed to deactivate %s/%s: %v", source, id, err)
		}
		if active {
			log.Printf("deactivated %s/%s", source, id)
		}
	}
	writer.Header()["HX-Refresh"] = []string{"true"}
	http.Error(writer, "ok", http.StatusNoContent)
}