import { ObjectType, Field, ID, ArgsType, InputType, registerEnumType } from 'type-graphql';
import { ApolloError } from 'apollo-server-lambda';

import { BaseGraphModel } from '@seed/graphql/BaseGraphModel';
import { Permission } from '@seed/interfaces/permission';

import { GetArgs } from '@seed/graphql/Request';

import AccountModel from '@src/accounts/account.model';
import { TranslatableComponent } from '@src/__components/components';
import { AccountTypeEnum } from '@src/accounts/account.components';
import { ApolloContext } from '@seed/interfaces/context';
import { PromoType } from './component';

const permissions: Permission = {
    c: [AccountTypeEnum.admin],
    r: [AccountTypeEnum.public, AccountTypeEnum.admin],
    w: [AccountTypeEnum.admin],
    d: [AccountTypeEnum.admin],
};

@ObjectType()
export default class PromoModel extends BaseGraphModel {
    public constructor() {
        super({
            collectionName: 'shop.promos',
            permissions: permissions,
        });
    }
    @Field(() => ID)
    readonly _id: string;

    @Field()
    code: string;

    @Field(() => TranslatableComponent, { nullable: true })
    description: TranslatableComponent;

    @Field(() => PromoType)
    type: PromoType;

    @Field()
    value: number;

    @Field({ nullable: true })
    validity?: Date;

    @Field()
    cummulable: boolean;

    @Field({ nullable: true })
    usageLimit?: number;

    @Field()
    usage: number;

    searchOptions(): string[] {
        return ['code'];
    }

    filterOptions(): string[] {
        return ['code'];
    }

    // validatePromo = (): void => {
    //     try {
    //         if (this.usageLimit && this.usageLimit <= this.usage) {
    //             throw new ApolloError('promo.notValid', '404');
    //         }
    //         if (this.validity) {
    //             const today = new Date();
    //             if (this.validity < today) throw new ApolloError('promo.expired', '404');
    //         }
    //     } catch (error) {
    //         throw error;
    //     }
    // };
}

@ArgsType()
export class PromoArgs {
    @Field(() => GetArgs, { nullable: true })
    pagination?: GetArgs;
    @Field({ nullable: true })
    search?: string;
}

@InputType()
export class NewPromoInput {
    @Field()
    code: string;

    @Field(() => TranslatableComponent, { nullable: true })
    description: TranslatableComponent;

    @Field(() => PromoType)
    type: PromoType;

    @Field()
    value: number;

    @Field()
    cummulable: boolean;

    @Field({ nullable: true })
    validity?: Date;

    @Field({ nullable: true })
    usageLimit?: number;
}

@InputType()
export class EditPromoInput {
    @Field({ nullable: true })
    code: string;

    @Field(() => TranslatableComponent, { nullable: true })
    description: TranslatableComponent;

    @Field(() => PromoType, { nullable: true })
    type: PromoType;

    @Field({ nullable: true })
    value: number;

    @Field({ nullable: true })
    cummulable: boolean;

    @Field({ nullable: true })
    validity?: Date;

    @Field({ nullable: true })
    usageLimit?: number;
}

export const onCreate = async (input: NewPromoInput, ctx: ApolloContext): Promise<void> => {
    try {
        const promo = await (await new PromoModel().db()).findOne({ code: input.code });
        if (promo) {
            throw new ApolloError('promo.nameTaken', '404');
        }
    } catch (error) {
        throw error;
    }
};

export const onUpdate = async (input: EditPromoInput, ctx: ApolloContext): Promise<void> => {
    try {
        const promo = await (await new PromoModel().db()).findOne({ code: input.code });
        if (promo) {
            throw new ApolloError('promo.nameTaken', '404');
        }
    } catch (error) {
        throw error;
    }
};

export const validatePromo = async (code: string, ctx: ApolloContext): Promise<void> => {
    try {
        const promo = await new PromoModel().getOne({ code }, ctx);
        if (promo.usageLimit && promo.usageLimit <= promo.usage) {
            throw new ApolloError('promo.notValid', '404');
        }
        if (promo.validity) {
            const today = new Date();
            if (promo.validity < today) throw new ApolloError('promo.expired', '404');
        }
    } catch (error) {
        throw error;
    }
};