import { Client } from 'pg';
import dotenv from 'dotenv';
dotenv.config();

(async function() {
    const setRole = `
        SET ROLE postgres;
        DROP SCHEMA IF EXISTS recipin CASCADE;
        CREATE SCHEMA IF NOT EXISTS recipin;
    `

    const appusers = `
        CREATE TABLE IF NOT EXISTS recipin.appusers (
            id INT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
            firstname varchar NOT NULL,
            lastname varchar NOT NULL,
            handle varchar NOT NULL,
            email varchar NOT NULL,
            password varchar NOT NULL
        );
    `

    const ingredient = `
        CREATE TABLE IF NOT EXISTS recipin.ingredient (
            id INT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
            name varchar NOT NULL,
            description varchar
        );
    `

    const collection = `
        CREATE TABLE IF NOT EXISTS recipin.collection (
            id INT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
            name varchar NOT NULL,
            active boolean NOT NULL,
            ismaincollection boolean NOT NULL,
            ownerid int REFERENCES recipin.appusers (id)
        );
    `

    const groceryList = `
        CREATE TABLE IF NOT EXISTS recipin.grocerylist (
            id INT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
            name varchar NOT NULL,
            active boolean NOT NULL,
            ownerid int REFERENCES recipin.appusers (id)
        );
    `


    const recipe = `
        CREATE TABLE IF NOT EXISTS recipin.recipe (
            id INT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
            name varchar NOT NULL,
            description varchar,
            preptime varchar,
            datecreated varchar,
            datemodified varchar,
            authoruserid int REFERENCES recipin.appusers (id) NOT NULL
        );
    `

    const recipeingredient = `
        CREATE TABLE IF NOT EXISTS recipin.cmp_recipeingredient (
            recipeingredientid INT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
            quantity decimal,
            unit varchar,
            ingredientid int REFERENCES recipin.ingredient (id),
            recipeid int REFERENCES recipin.recipe (id),
            collectionid int REFERENCES recipin.collection (id)
        );
    `

    const userscollections = `        
        CREATE TABLE IF NOT EXISTS recipin.cmp_userscollections (
            userscollectionsid INT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
            collectionid int REFERENCES recipin.collection (id),
            usermemberid int REFERENCES recipin.appusers (id)
        );
    `;

    const allStatements = [
        setRole, appusers, ingredient, collection, recipe, groceryList, recipeingredient, userscollections
    ]

    const client = new Client({ connectionString: process.env.CONSTRING });
    await client.connect().then(() => console.log('connected to pg. seeding...'));

    try {
        for (let s of allStatements) {
            await client.query(s);
        }

        await client.end();
    } catch(e: any) {
        await client.end();
        throw new Error(e);
    }

    console.log("Database seed successful.");
})();