import { BaseSheetL5r5e } from "./base-sheet.js";
import { TwentyQuestionsDialog } from "./twenty-questions-dialog.js";

/**
 * Actor / Character Sheet
 */
export class CharacterSheetL5r5e extends BaseSheetL5r5e {
    static get defaultOptions() {
        return foundry.utils.mergeObject(super.defaultOptions, {
            classes: ["l5r5e", "sheet", "actor"],
            template: CONFIG.l5r5e.paths.templates + "actors/character-sheet.html",
            tabs: [
                { navSelector: ".sheet-tabs", contentSelector: ".sheet-body", initial: "skills" },
                { navSelector: ".advancements-tabs", contentSelector: ".advancements-body", initial: "last" },
            ],
        });
    }

    /**
     * Add the TwentyQuestions button on top of sheet
     * @override
     */
    _getHeaderButtons() {
        let buttons = super._getHeaderButtons();
        if (!this.options.editable || this.actor.limited) {
            return buttons;
        }

        buttons.unshift({
            label: game.i18n.localize("l5r5e.twenty_questions.bt_abrev"),
            class: "twenty-questions",
            icon: "fas fa-graduation-cap",
            onclick: async () => {
                await new TwentyQuestionsDialog(this.actor).render(true);
            },
        });
        return buttons;
    }

    /**
     * Commons datas
     */
    getData() {
        const sheetData = super.getData();

        // Min rank = 1
        this.actor.data.data.identity.school_rank = Math.max(1, this.actor.data.data.identity.school_rank);

        // Split Money
        sheetData.data.data.money = this._zeniToMoney(this.actor.data.data.zeni);

        // Split school advancements by rank, and calculate xp spent and add it to total
        this._prepareSchoolAdvancement(sheetData);

        // Split Others advancements, and calculate xp spent and add it to total
        this._prepareOthersAdvancement(sheetData);

        // Total
        sheetData.data.data.xp_saved = Math.floor(
            parseInt(sheetData.data.data.xp_total) - parseInt(sheetData.data.data.xp_spent)
        );

        return sheetData;
    }

    /**
     * Subscribe to events from the sheet.
     * @param {jQuery} html HTML content of the sheet.
     */
    activateListeners(html) {
        super.activateListeners(html);

        // *** Everything below here is only needed if the sheet is editable ***
        if (!this.options.editable) {
            return;
        }

        // *** Items : curriculum management ***
        html.find(`.item-curriculum`).on("click", (event) => {
            event.preventDefault();
            event.stopPropagation();
            this._switchSubItemCurriculum(event);
        });
        html.find(`button[name=validate-curriculum]`).on("click", (event) => {
            event.preventDefault();
            event.stopPropagation();
            this.actor.data.data.identity.school_rank = this.actor.data.data.identity.school_rank + 1;
            this.actor.update({
                data: {
                    identity: {
                        school_rank: this.actor.data.data.identity.school_rank,
                    },
                },
            });
            this.render(false);
        });

        // Money +/-
        html.find(".money-control").on("click", this._modifyMoney.bind(this));

        // Advancements Tab to current rank onload
        // TODO class "Active" Bug on load, dunno why :/
        this._tabs
            .find((e) => e._navSelector === ".advancements-tabs")
            .activate("advancement_rank_" + (this.actor.data.data.identity.school_rank || 0));

        // Open linked school curriculum journal
        html.find(`.school-journal-link`).on("click", async (event) => {
            event.preventDefault();
            event.stopPropagation();

            const actorJournal = this.actor.data.data.identity.school_curriculum_journal;
            const journal = await this._getJournal(actorJournal.id, actorJournal.pack);
            if (journal) {
                journal.sheet.render(true);
            }
        });
    }

    /**
     * Handle dropped data on the Actor sheet
     * @param {DragEvent} event
     */
    async _onDrop(event) {
        // *** Everything below here is only needed if the sheet is editable ***
        if (!this.options.editable) {
            return;
        }

        // Curriculum Journal
        const json = event.dataTransfer.getData("text/plain");
        if (!json) {
            return;
        }

        const data = JSON.parse(json);
        if (data.type !== "JournalEntry") {
            return super._onDrop(event);
        }

        const journal = await this._getJournal(data.id, data.pack);
        if (!journal) {
            return;
        }

        this.actor.data.data.identity.school_curriculum_journal = {
            id: journal.data._id,
            name: journal.data.name,
            pack: data.pack || null,
        };

        await this.actor.update({
            data: {
                identity: {
                    school_curriculum_journal: this.actor.data.data.identity.school_curriculum_journal,
                },
            },
        });
    }

    /**
     * Return the Journal in Pack or in World
     * @param id
     * @param pack
     * @return {Promise<game.l5r5e.JournalL5r5e>}
     * @private
     */
    async _getJournal(id, pack = null) {
        let journal;
        if (pack) {
            // Compendium
            journal = await game.packs.get(pack)?.getDocument(id);
        } else {
            // World
            journal = game.journal.get(id);
        }
        if (!journal || !(journal instanceof game.l5r5e.JournalL5r5e) || !journal.data?._id) {
            return;
        }
        return journal;
    }

    /**
     * Split the school advancement, calculate the total xp spent and the current total xp spent by rank
     */
    _prepareSchoolAdvancement(sheetData) {
        const adv = [];
        sheetData.data.data.xp_spent = 0;
        sheetData.items
            .filter((item) => ["peculiarity", "technique", "advancement"].includes(item.type))
            .forEach((item) => {
                const { xp_used_total, xp_used } = game.l5r5e.HelpersL5r5e.getItemsXpCost(item);
                sheetData.data.data.xp_spent += xp_used_total;

                const rank = Math.max(0, item.data.bought_at_rank);
                if (!adv[rank]) {
                    adv[rank] = {
                        rank: rank,
                        spent: {
                            total: 0,
                            curriculum: 0,
                        },
                        goal: CONFIG.l5r5e.xp.costPerRank[rank] || null,
                        list: [],
                    };
                }
                adv[rank].list.push(item);
                adv[rank].spent.total += xp_used_total;
                adv[rank].spent.curriculum += xp_used;
            });
        sheetData.data.advancementsListByRank = adv;
    }

    /**
     * Prepare Bonds, Item Pattern, Signature Scroll and get xp spend
     */
    _prepareOthersAdvancement(sheetData) {
        // Split OthersAdvancement from items
        sheetData.data.advancementsOthers = sheetData.items.filter((item) =>
            ["bond", "item_pattern", "title", "signature_scroll"].includes(item.type)
        );

        // Sort by rank desc
        sheetData.data.advancementsOthers.sort((a, b) => (b.data.rank || 0) - (a.data.rank || 0));

        // Total xp spent in curriculum & total
        sheetData.data.advancementsOthersTotalXp = sheetData.data.advancementsOthers.reduce(
            (acc, item) => acc + parseInt(item.data.xp_used_total || item.data.xp_used || 0),
            0
        );

        // Update the total spent
        sheetData.data.data.xp_spent += sheetData.data.advancementsOthersTotalXp;
    }

    /**
     * Update the actor.
     * @param event
     * @param formData
     */
    _updateObject(event, formData) {
        // Store money in zeni
        formData["data.zeni"] = this._moneyToZeni(
            formData["data.money.koku"],
            formData["data.money.bu"],
            formData["data.money.zeni"]
        );

        // Remove fake money object
        delete formData["data.money.koku"];
        delete formData["data.money.bu"];
        delete formData["data.money.zeni"];

        return super._updateObject(event, formData);
    }

    /**
     * Convert a sum in Zeni to Zeni, Bu and Koku
     * @param {number} zeni
     * @return {{bu: number, koku: number, zeni: number}}
     * @private
     */
    _zeniToMoney(zeni) {
        const money = {
            koku: 0,
            bu: 0,
            zeni: zeni,
        };

        if (money.zeni >= CONFIG.l5r5e.money[0]) {
            money.koku = Math.floor(money.zeni / CONFIG.l5r5e.money[0]);
            money.zeni = Math.floor(money.zeni % CONFIG.l5r5e.money[0]);
        }
        if (money.zeni >= CONFIG.l5r5e.money[1]) {
            money.bu = Math.floor(money.zeni / CONFIG.l5r5e.money[1]);
            money.zeni = Math.floor(money.zeni % CONFIG.l5r5e.money[1]);
        }

        return money;
    }

    /**
     * Convert a sum in Zeni, Bu and Koku to Zeni
     * @param {number} koku
     * @param {number} bu
     * @param {number} zeni
     * @return {number}
     * @private
     */
    _moneyToZeni(koku, bu, zeni) {
        return Math.floor(koku * CONFIG.l5r5e.money[0]) + Math.floor(bu * CONFIG.l5r5e.money[1]) + Math.floor(zeni);
    }

    /**
     * Add or Subtract money (+/- buttons)
     * @param {Event} event
     * @private
     */
    _modifyMoney(event) {
        event.preventDefault();
        event.stopPropagation();

        const elmt = $(event.currentTarget);
        const type = elmt.data("type");
        let mod = elmt.data("value");
        if (!mod || !type) {
            return;
        }

        if (type !== "zeni") {
            mod = Math.floor(mod * CONFIG.l5r5e.money[type === "koku" ? 0 : 1]);
        }

        this.actor.data.data.zeni = +this.actor.data.data.zeni + mod;
        this.actor.update({
            data: {
                zeni: this.actor.data.data.zeni,
            },
        });
        this.render(false);
    }
}