DROP TABLE IF EXISTS portfolio_holdings;
DROP TABLE IF EXISTS transactions;
DROP TABLE IF EXISTS trade_request;
DROP TABLE IF EXISTS stock_history;
DROP TABLE IF EXISTS watchlist;
DROP TABLE IF EXISTS oauth_pending_links;
DROP TABLE IF EXISTS user_auth_providers;
DROP TABLE IF EXISTS portfolios;
DROP TABLE IF EXISTS stock;
DROP TABLE IF EXISTS users;


CREATE TABLE IF NOT EXISTS users (
    id BIGINT NOT NULL PRIMARY KEY,
    email VARCHAR(255) NOT NULL UNIQUE,
    password VARCHAR(255) NOT NULL,
    role VARCHAR(255) NOT NULL CHECK (role IN ('USER', 'ADMIN')),
    username VARCHAR(255) NOT NULL UNIQUE
);


CREATE TABLE IF NOT EXISTS stock (
    id BIGINT NOT NULL PRIMARY KEY,
    symbol VARCHAR(255) NOT NULL UNIQUE,
    name VARCHAR(255),
    current_price DOUBLE PRECISION,
    last_price DOUBLE PRECISION,
    percentage DOUBLE PRECISION NOT NULL,
    turnover DOUBLE PRECISION,
    last_updated TIMESTAMP
);


CREATE TABLE IF NOT EXISTS portfolios (
    id BIGINT NOT NULL PRIMARY KEY,
    balance NUMERIC(18,2) NOT NULL,
    user_id BIGINT NOT NULL UNIQUE,

    CONSTRAINT fk_portfolio_user
        FOREIGN KEY (user_id)
        REFERENCES users(id)
);


CREATE TABLE IF NOT EXISTS portfolio_holdings (
    id BIGINT NOT NULL PRIMARY KEY,
    quantity INTEGER NOT NULL,
    avg_price NUMERIC(38,2) NOT NULL,
    stock_id BIGINT NOT NULL,
    portfolio_id BIGINT NOT NULL,

    CONSTRAINT fk_ph_portfolio
        FOREIGN KEY (portfolio_id)
        REFERENCES portfolios(id),

    CONSTRAINT fk_ph_stock
        FOREIGN KEY (stock_id)
        REFERENCES stock(id)
);


CREATE TABLE IF NOT EXISTS stock_history (
    id BIGINT NOT NULL PRIMARY KEY,
    price DOUBLE PRECISION NOT NULL,
    stock_id BIGINT NOT NULL,
    timestamp DATE NOT NULL,

    CONSTRAINT fk_stock
        FOREIGN KEY (stock_id)
        REFERENCES stock(id)
);


CREATE TABLE IF NOT EXISTS trade_request (
    id BIGINT NOT NULL PRIMARY KEY,
    portfolio_id BIGINT,
    price_per_unit DOUBLE PRECISION NOT NULL,
    quantity INTEGER NOT NULL,
    status VARCHAR(255),
    stock_id BIGINT NOT NULL,
    timestamp TIMESTAMP,
    type VARCHAR(255),

    CONSTRAINT fk_trade_portfolio
        FOREIGN KEY (portfolio_id)
        REFERENCES portfolios(id),

    CONSTRAINT fk_trade_stock
        FOREIGN KEY (stock_id)
        REFERENCES stock(id)
);


CREATE TABLE IF NOT EXISTS transactions (
    id BIGINT NOT NULL PRIMARY KEY,
    type VARCHAR(255),
    quantity INTEGER,
    price DOUBLE PRECISION,
    timestamp TIMESTAMP NOT NULL,
    origin VARCHAR(255) NOT NULL
        CHECK (origin IN ('INTERNAL', 'EXTERNAL')),
    user_id BIGINT,
    stock_id BIGINT,
    trade_request_id BIGINT,

    CONSTRAINT fk_tx_user
        FOREIGN KEY (user_id)
        REFERENCES users(id),

    CONSTRAINT fk_tx_stock
        FOREIGN KEY (stock_id)
        REFERENCES stock(id),

    CONSTRAINT fk_tx_trade_request
        FOREIGN KEY (trade_request_id)
        REFERENCES trade_request(id)
);


CREATE TABLE IF NOT EXISTS watchlist (
    id BIGINT NOT NULL PRIMARY KEY,
    price_above DOUBLE PRECISION,
    price_below DOUBLE PRECISION,
    stock_id BIGINT,
    user_id BIGINT,

    CONSTRAINT fk_watch_stock
        FOREIGN KEY (stock_id)
        REFERENCES stock(id),

    CONSTRAINT fk_watch_user
        FOREIGN KEY (user_id)
        REFERENCES users(id)
);


CREATE TABLE IF NOT EXISTS user_auth_providers (
    user_id BIGINT NOT NULL UNIQUE,

    auth_providers VARCHAR(255) NOT NULL
        CHECK (auth_providers IN ('INTERNAL', 'GOOGLE')),

    CONSTRAINT fk_auth_user
        FOREIGN KEY (user_id)
        REFERENCES users(id)
);


CREATE TABLE IF NOT EXISTS oauth_pending_links (
    token VARCHAR(255) NOT NULL PRIMARY KEY,
    email VARCHAR(255) NOT NULL,

    provider VARCHAR(255) NOT NULL
        CHECK (provider IN ('GOOGLE', 'INTERNAL')),

    expires_at TIMESTAMP NOT NULL,
    created_at TIMESTAMP NOT NULL,
    user_id BIGINT NOT NULL,
    auth_provider_id BIGINT NOT NULL,

    CONSTRAINT fk_pending_user
        FOREIGN KEY (user_id)
        REFERENCES users(id),

    CONSTRAINT fk_pending_auth_provider
        FOREIGN KEY (auth_provider_id)
        REFERENCES user_auth_providers(user_id)
);