import { pgTable, uuid, varchar, text, boolean, integer, decimal, time, date, timestamp, pgEnum } from 'drizzle-orm/pg-core';

export const roleEnum = pgEnum('role', ['mitarbeiter', 'admin']);
export const absenceTypeEnum = pgEnum('absence_type', ['urlaub', 'krank', 'sonderurlaub']);

export const users = pgTable('users', {
	id: uuid('id').primaryKey().defaultRandom(),
	firstName: varchar('first_name', { length: 100 }).notNull(),
	lastName: varchar('last_name', { length: 100 }).notNull(),
	email: varchar('email', { length: 255 }).notNull().unique(),
	passwordHash: text('password_hash'),
	role: roleEnum('role').notNull().default('mitarbeiter'),
	bundesland: varchar('bundesland', { length: 2 }).notNull().default('MV'),
	standardStart: time('standard_start').notNull().default('08:00'),
	standardEnd: time('standard_end').notNull().default('17:00'),
	breakMinutesDefault: integer('break_minutes_default').notNull().default(30),
	weeklyHours: decimal('weekly_hours', { precision: 4, scale: 1 }).notNull().default('40.0'),
	vacationDaysPerYear: integer('vacation_days_per_year').notNull().default(30),
	active: boolean('active').notNull().default(true),
	inviteToken: text('invite_token'),
	createdAt: timestamp('created_at').notNull().defaultNow()
});

export const sessions = pgTable('sessions', {
	id: text('id').primaryKey(),
	userId: uuid('user_id').notNull().references(() => users.id, { onDelete: 'cascade' }),
	expiresAt: timestamp('expires_at').notNull(),
	createdAt: timestamp('created_at').notNull().defaultNow()
});

export const timeEntries = pgTable('time_entries', {
	id: uuid('id').primaryKey().defaultRandom(),
	userId: uuid('user_id').notNull().references(() => users.id, { onDelete: 'cascade' }),
	date: date('date').notNull(),
	startTime: time('start_time'),
	endTime: time('end_time'),
	breakMinutes: integer('break_minutes').notNull().default(30),
	isAutoFilled: boolean('is_auto_filled').notNull().default(false),
	isCorrected: boolean('is_corrected').notNull().default(false),
	confirmedAt: timestamp('confirmed_at'),
	createdAt: timestamp('created_at').notNull().defaultNow(),
	updatedAt: timestamp('updated_at').notNull().defaultNow()
});

export const absences = pgTable('absences', {
	id: uuid('id').primaryKey().defaultRandom(),
	userId: uuid('user_id').notNull().references(() => users.id, { onDelete: 'cascade' }),
	dateFrom: date('date_from').notNull(),
	dateTo: date('date_to').notNull(),
	type: absenceTypeEnum('type').notNull(),
	notes: text('notes'),
	createdAt: timestamp('created_at').notNull().defaultNow()
});

export const holidays = pgTable('holidays', {
	id: uuid('id').primaryKey().defaultRandom(),
	bundesland: varchar('bundesland', { length: 2 }).notNull(),
	date: date('date').notNull(),
	name: varchar('name', { length: 200 }).notNull(),
	year: integer('year').notNull()
});

export const vacationBalances = pgTable('vacation_balances', {
	id: uuid('id').primaryKey().defaultRandom(),
	userId: uuid('user_id').notNull().references(() => users.id, { onDelete: 'cascade' }),
	year: integer('year').notNull(),
	totalDays: integer('total_days').notNull(),
	carriedOverDays: integer('carried_over_days').notNull().default(0)
});

export type User = typeof users.$inferSelect;
export type NewUser = typeof users.$inferInsert;
export type TimeEntry = typeof timeEntries.$inferSelect;
export type Absence = typeof absences.$inferSelect;
export type Holiday = typeof holidays.$inferSelect;
export type VacationBalance = typeof vacationBalances.$inferSelect;