import {
	index,
	integer,
	primaryKey,
	text,
	timestamp,
	uniqueIndex,
	bigint
} from 'drizzle-orm/pg-core';
import { csSchema } from './schemas';
import { id } from './helpers';

// A Steam market hash name identifies a listing, including wear and special variants.
export const csMarketItems = csSchema.table(
	'items',
	{
		id: id(),
		marketHashName: text('market_hash_name').notNull(),
		name: text('name').notNull(),
		iconUrl: text('icon_url'),
		itemType: text('item_type'),
		firstSeenAt: timestamp('first_seen_at', { withTimezone: true }).notNull().defaultNow(),
		lastSeenAt: timestamp('last_seen_at', { withTimezone: true }).notNull().defaultNow()
	},
	(table) => [
		uniqueIndex('items_hash_idx').on(table.marketHashName),
		index('items_name_idx').on(table.name)
	]
);

// Keep source observations intact. Aggregation happens only when the chart is requested.
export const csPriceObservations = csSchema.table(
	'price_observations',
	{
		id: bigint('id', { mode: 'number' }).primaryKey().generatedAlwaysAsIdentity(),
		itemId: integer('item_id')
			.notNull()
			.references(() => csMarketItems.id, { onDelete: 'cascade' }),
		source: text('source').notNull(),
		currency: text('currency').notNull(),
		observedAt: timestamp('observed_at', { withTimezone: true }).notNull(),
		priceCents: integer('price_cents').notNull(),
		volume: integer('volume'),
		kind: text('kind').notNull(),
		importedAt: timestamp('imported_at', { withTimezone: true }).notNull().defaultNow()
	},
	(table) => [
		uniqueIndex('price_observations_unique_idx').on(
			table.itemId,
			table.source,
			table.currency,
			table.observedAt,
			table.kind
		),
		index('price_observations_lookup_idx').on(
			table.itemId,
			table.source,
			table.currency,
			table.observedAt
		),
		index('price_observations_time_idx').on(table.observedAt)
	]
);

export const csItemDimensions = csSchema.table(
	'item_dimensions',
	{
		itemId: integer('item_id')
			.notNull()
			.references(() => csMarketItems.id, { onDelete: 'cascade' }),
		key: text('key').notNull(),
		value: text('value').notNull()
	},
	(table) => [
		primaryKey({ name: 'item_dimensions_pkey', columns: [table.itemId, table.key] }),
		index('item_dimensions_filter_idx').on(table.key, table.value, table.itemId)
	]
);

export const csPriceStreams = csSchema.table(
	'price_streams',
	{
		source: text('source').notNull(),
		currency: text('currency').notNull(),
		kind: text('kind').notNull()
	},
	(table) => [
		primaryKey({ name: 'price_streams_pkey', columns: [table.source, table.currency, table.kind] })
	]
);