const { ApplicationV2, HandlebarsApplicationMixin } = foundry.applications.api;

export class StreamOverlaySettings extends HandlebarsApplicationMixin(ApplicationV2) {
    static DEFAULT_OPTIONS = {
        id: "stream-overlay-settings",
        tag: "form",
        window: {
            title: "DH_STREAM_OVERLAY.Settings.Title",
            icon: "fas fa-video",
            resizable: false,
            contentClasses: ["standard-form"]
        },
        position: {
            width: 400,
            height: "auto"
        },
        form: {
            handler: StreamOverlaySettings.#onSubmit,
            closeOnSubmit: true
        }
    };

    static PARTS = {
        form: {
            template: "modules/dh-stream-overlay/templates/settings-app.hbs"
        }
    };

    async _prepareContext(_options) {
        const actorUuid = game.settings.get("dh-stream-overlay", "partyActorUuid");
        let actor = null;
        if (actorUuid) {
            actor = await fromUuid(actorUuid);
        }

        const dsnInstalled = game.modules.get("dice-so-nice")?.active;
        const dsnEnabled = game.settings.get("dh-stream-overlay", "enableDSN");

        return {
            actorUuid,
            actor,
            dsnInstalled,
            dsnEnabled
        };
    }

    _onRender(context, options) {
        super._onRender(context, options);
        const html = this.element;
        const dropZone = html.querySelector(".drop-zone");

        if (dropZone) {
            dropZone.addEventListener("dragover", this.#onDragOver.bind(this));
            dropZone.addEventListener("dragleave", this.#onDragLeave.bind(this));
            dropZone.addEventListener("drop", this.#onDrop.bind(this));
        }

        const clearBtn = html.querySelector(".clear-actor");
        if (clearBtn) {
            clearBtn.addEventListener("click", this.#onClear.bind(this));
        }
    }

    #onDragOver(event) {
        event.preventDefault();
        event.currentTarget.classList.add("drag-over");
    }

    #onDragLeave(event) {
        event.preventDefault();
        event.currentTarget.classList.remove("drag-over");
    }

    async #onDrop(event) {
        event.preventDefault();
        event.currentTarget.classList.remove("drag-over");
        const data = foundry.applications.ux.TextEditor.getDragEventData(event);

        if (data.type !== "Actor") return;

        const actor = await fromUuid(data.uuid);
        if (actor) {
            await game.settings.set("dh-stream-overlay", "partyActorUuid", data.uuid);
            this.render();
        }
    }

    async #onClear(event) {
        event.preventDefault();
        await game.settings.set("dh-stream-overlay", "partyActorUuid", "");
        this.render();
    }

    static async #onSubmit(event, form, formData) {
        // Handle DSN setting
        if (formData.object.enableDSN !== undefined) {
            await game.settings.set("dh-stream-overlay", "enableDSN", formData.object.enableDSN);
        }
    }
}