First working API.

Simple auth by creating sessions and storing in db

migrations/00000000000000_diesel_initial_setup/down.sql

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+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass);
+DROP FUNCTION IF EXISTS diesel_set_updated_at();

migrations/00000000000000_diesel_initial_setup/up.sql

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+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+
+
+
+-- Sets up a trigger for the given table to automatically set a column called
+-- `updated_at` whenever the row is modified (unless `updated_at` was included
+-- in the modified columns)
+--
+-- # Example
+--
+-- ```sql
+-- CREATE TABLE users (id SERIAL PRIMARY KEY, updated_at TIMESTAMP NOT NULL DEFAULT NOW());
+--
+-- SELECT diesel_manage_updated_at('users');
+-- ```
+CREATE OR REPLACE FUNCTION diesel_manage_updated_at(_tbl regclass) RETURNS VOID AS $$
+BEGIN
+    EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s
+                    FOR EACH ROW EXECUTE PROCEDURE diesel_set_updated_at()', _tbl);
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE OR REPLACE FUNCTION diesel_set_updated_at() RETURNS trigger AS $$
+BEGIN
+    IF (
+        NEW IS DISTINCT FROM OLD AND
+        NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at
+    ) THEN
+        NEW.updated_at := current_timestamp;
+    END IF;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;

migrations/2024-08-04-214620_init_tables/down.sql

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+DROP TABLE IF EXISTS hotel CASCADE;
+DROP TABLE IF EXISTS room CASCADE;
+DROP TABLE IF EXISTS reservation CASCADE;
+DROP TABLE IF EXISTS task CASCADE;
+DROP TABLE IF EXISTS "user" CASCADE;
+DROP TABLE IF EXISTS session CASCADE;

migrations/2024-08-04-214620_init_tables/up.sql

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+CREATE TABLE hotel
+(
+    id      SERIAL PRIMARY KEY,
+    name    VARCHAR(255) NOT NULL,
+    address VARCHAR(255) NOT NULL
+);
+
+CREATE TABLE room
+(
+    id       INTEGER PRIMARY KEY,
+    hotel_id INTEGER NOT NULL,
+    beds     INTEGER NOT NULL CHECK (beds > 0),
+    size     INTEGER NOT NULL CHECK (size > 0),
+    FOREIGN KEY (hotel_id) REFERENCES hotel (id)
+);
+
+CREATE TABLE "user"
+(
+    email VARCHAR(255) PRIMARY KEY,
+    hash  VARCHAR(255) NOT NULL,
+    salt  VARCHAR(255) NOT NULL,
+    role  SMALLINT     NOT NULL CHECK ( role IN (0, 3) )
+);
+
+CREATE TABLE reservation
+(
+    id         SERIAL PRIMARY KEY,
+    room_id    INTEGER      NOT NULL,
+    start      TIMESTAMP    NOT NULL,
+    "end"      TIMESTAMP    NOT NULL,
+    "user"     VARCHAR(255) NOT NULL,
+    checked_in BOOLEAN      NOT NULL DEFAULT FALSE,
+    FOREIGN KEY (room_id) REFERENCES room (id),
+    FOREIGN KEY ("user") REFERENCES "user" (email)
+);
+
+CREATE TABLE task
+(
+    id          SERIAL PRIMARY KEY,
+    room_id     INTEGER     NOT NULL,
+    description TEXT        NOT NULL,
+    status      VARCHAR(12) NOT NULL CHECK ( status IN ('todo', 'in_progress', 'done') ),
+    FOREIGN KEY (room_id) REFERENCES room (id)
+);
+
+CREATE TABLE session
+(
+    id          VARCHAR(128) PRIMARY KEY,
+    data        JSONB     NOT NULL,
+    expiry_date TIMESTAMP NOT NULL
+)