package api

import (
	"fmt"
	"log"
	"net/http"

	"sprintpadawan/lib"
)

func handleNewStoryForm(w http.ResponseWriter, r *http.Request) {
	roomID, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	room, err := lib.GetRoomByID(roomID)
	if err != nil {
		http.Error(w, "room not found", http.StatusNotFound)
		return
	}
	renderTemplate(w, "story_form.html", room)
}

func handleAddStory(w http.ResponseWriter, r *http.Request) {
	id, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	user := r.Context().Value(userKey).(*lib.User)
	title := r.FormValue("title")
	if _, err := lib.CreateStory(id, title); err != nil {
		log.Printf("create story error: %v", err)
		http.Error(w, "failed to create story", http.StatusInternalServerError)
		return
	}
	broadcast(id, "stories")
	if isHTMX(r) {
		renderRoomStories(w, id, user)
		return
	}
	http.Redirect(w, r, fmt.Sprintf("/rooms/%d", id), http.StatusSeeOther)
}

func handleSetActiveStory(w http.ResponseWriter, r *http.Request) {
	id, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	user := r.Context().Value(userKey).(*lib.User)
	sid, err := getFormInt(r, "story_id")
	if err != nil {
		http.Error(w, "invalid story id", http.StatusBadRequest)
		return
	}

	if err := lib.SetActiveStory(id, sid); err != nil {
		http.Error(w, "failed to set active story", http.StatusInternalServerError)
		return
	}

	broadcast(id, "stories")
	broadcast(id, "members")
	if isHTMX(r) {
		renderRoomStories(w, id, user)
		return
	}
	http.Redirect(w, r, fmt.Sprintf("/rooms/%d", id), http.StatusSeeOther)
}

func handleResetStory(w http.ResponseWriter, r *http.Request) {
	id, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	user := r.Context().Value(userKey).(*lib.User)
	sid, err := getPathInt(r, "story_id")
	if err != nil {
		http.Error(w, "invalid story id", http.StatusBadRequest)
		return
	}

	if err := lib.UnrevealStory(sid); err != nil {
		http.Error(w, "failed to reset story", http.StatusInternalServerError)
		return
	}
	if err := lib.ClearVotesForStory(sid); err != nil {
		http.Error(w, "failed to clear votes", http.StatusInternalServerError)
		return
	}

	broadcast(id, "stories")
	broadcast(id, "members")
	if isHTMX(r) {
		renderRoomStories(w, id, user)
		return
	}
	http.Redirect(w, r, fmt.Sprintf("/rooms/%d", id), http.StatusSeeOther)
}

func handleVote(w http.ResponseWriter, r *http.Request) {
	id, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	user := r.Context().Value(userKey).(*lib.User)
	value := r.FormValue("value")
	sid, err := getFormInt(r, "story_id")
	if err != nil {
		http.Error(w, "invalid story id", http.StatusBadRequest)
		return
	}

	if err := lib.VoteOnStory(sid, user.ID, value); err != nil {
		http.Error(w, "failed to vote", http.StatusInternalServerError)
		return
	}
	broadcast(id, "members")
	story, storyErr := lib.GetStoryByID(sid)
	if storyErr == nil && story.Voted {
		broadcast(id, "stories")
	}

	if isHTMX(r) {
		if storyErr != nil {
			http.Error(w, "story not found", http.StatusNotFound)
			return
		}
		room, err := lib.GetRoomByID(id)
		if err != nil {
			http.Error(w, "room not found", http.StatusNotFound)
			return
		}
		tmplData := struct {
			RoomID   int
			Story    lib.Story
			Scale    string
			UserVote string
		}{
			RoomID:   id,
			Story:    *story,
			Scale:    room.Scale,
			UserVote: value,
		}
		renderTemplate(w, "vote_form.html", tmplData)
		return
	}

	http.Redirect(w, r, fmt.Sprintf("/rooms/%d", id), http.StatusSeeOther)
}

func handleReveal(w http.ResponseWriter, r *http.Request) {
	id, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	user := r.Context().Value(userKey).(*lib.User)
	sid, err := getFormInt(r, "story_id")
	if err != nil {
		http.Error(w, "invalid story id", http.StatusBadRequest)
		return
	}
	if err := lib.RevealVotes(sid); err != nil {
		http.Error(w, "failed to reveal votes", http.StatusInternalServerError)
		return
	}
	broadcast(id, "stories")
	if isHTMX(r) {
		renderRoomStories(w, id, user)
		return
	}
	http.Redirect(w, r, fmt.Sprintf("/rooms/%d", id), http.StatusSeeOther)
}

func handleUnrevealStory(w http.ResponseWriter, r *http.Request) {
	id, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	user := r.Context().Value(userKey).(*lib.User)
	sid, err := getPathInt(r, "story_id")
	if err != nil {
		http.Error(w, "invalid story id", http.StatusBadRequest)
		return
	}
	if err := lib.UnrevealStory(sid); err != nil {
		http.Error(w, "failed to hide votes", http.StatusInternalServerError)
		return
	}
	broadcast(id, "stories")
	if isHTMX(r) {
		renderRoomStories(w, id, user)
		return
	}
	http.Redirect(w, r, fmt.Sprintf("/rooms/%d", id), http.StatusSeeOther)
}

func handleEditStoryForm(w http.ResponseWriter, r *http.Request) {
	roomID, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	storyID, err := getPathInt(r, "story_id")
	if err != nil {
		http.Error(w, "invalid story id", http.StatusBadRequest)
		return
	}
	story, err := lib.GetStoryByID(storyID)
	if err != nil {
		http.Error(w, "story not found", http.StatusNotFound)
		return
	}
	data := struct {
		RoomID int
		Story  lib.Story
	}{
		RoomID: roomID,
		Story:  *story,
	}
	renderTemplate(w, "story_edit.html", data)
}

func handleRenameStory(w http.ResponseWriter, r *http.Request) {
	id, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	user := r.Context().Value(userKey).(*lib.User)
	sid, err := getPathInt(r, "story_id")
	if err != nil {
		http.Error(w, "invalid story id", http.StatusBadRequest)
		return
	}
	title := r.FormValue("title")
	if err := lib.RenameStory(sid, title); err != nil {
		http.Error(w, "failed to rename story", http.StatusInternalServerError)
		return
	}
	broadcast(id, "stories")
	if isHTMX(r) {
		renderRoomStories(w, id, user)
		return
	}
	http.Redirect(w, r, fmt.Sprintf("/rooms/%d", id), http.StatusSeeOther)
}

func handleDeleteStory(w http.ResponseWriter, r *http.Request) {
	id, err := getRoomID(r)
	if err != nil {
		http.Error(w, "invalid room id", http.StatusBadRequest)
		return
	}
	user := r.Context().Value(userKey).(*lib.User)
	sid, err := getPathInt(r, "story_id")
	if err != nil {
		http.Error(w, "invalid story id", http.StatusBadRequest)
		return
	}
	if err := lib.DeleteStory(sid); err != nil {
		http.Error(w, "failed to delete story", http.StatusInternalServerError)
		return
	}
	broadcast(id, "stories")
	if isHTMX(r) {
		renderRoomStories(w, id, user)
		return
	}
	http.Redirect(w, r, fmt.Sprintf("/rooms/%d", id), http.StatusSeeOther)
}