import path from "path";
import { readFileSync } from "node:fs";
import { PostgreSqlContainer } from "@testcontainers/postgresql";
import { drizzle } from "drizzle-orm/node-postgres";
import { migrate } from "drizzle-orm/node-postgres/migrator";
import { Pool } from "pg";
import SuperJSON from "superjson";
import { describe, expect, test } from "vitest";

import { DB_CASING } from "@homarr/core/infrastructure/db/constants";

import * as pgSchema from "../schema/postgresql";
import type { Database } from "..";
import { seedDataAsync } from "../migrations/seed";
import { expectBundledCustomWidgetsSeeded } from "./custom-widget-seed-assertions";

const applyMigration = async (pool: Pool, fileName: string) => {
  const migration = readFileSync(path.join(__dirname, "..", "migrations", "postgresql", fileName), "utf8");
  for (const statement of migration
    .split("--> statement-breakpoint")
    .map((value) => value.trim())
    .filter(Boolean)) {
    await pool.query(statement);
  }
};

describe("PostgreSql Migration", () => {
  test("should add all tables and keys specified in migration files", async () => {
    const container = new PostgreSqlContainer("postgres:latest");
    const postgreSqlContainer = await container.start();

    const pool = new Pool({
      user: postgreSqlContainer.getUsername(),
      database: postgreSqlContainer.getDatabase(),
      password: postgreSqlContainer.getPassword(),
      port: postgreSqlContainer.getPort(),
      host: postgreSqlContainer.getHost(),
      keepAlive: true,
      max: 0,
      idleTimeoutMillis: 60000,
      allowExitOnIdle: false,
    });

    const database = drizzle({
      schema: pgSchema,
      casing: DB_CASING,
      client: pool,
    });

    // Run migrations and check if it works
    await migrate(database, {
      migrationsFolder: path.join(__dirname, "..", "migrations", "postgresql"),
    });
    await seedDataAsync(database as unknown as Database);

    // Check if users table exists
    await database.query.users.findMany();
    await expectBundledCustomWidgetsSeeded(database as unknown as Database);
    expect(
      (
        await pool.query(
          "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public' AND table_name LIKE 'custom_widget%'",
        )
      ).rows,
    ).toHaveLength(4);

    // Close the pool to release resources
    await pool.end();
    // Stop the container
    await postgreSqlContainer.stop();
  }, 40_000);

  test("Custom Widget v2 migration preserves v1 data and board references", async () => {
    const postgreSqlContainer = await new PostgreSqlContainer("postgres:latest").start();
    const pool = new Pool({
      user: postgreSqlContainer.getUsername(),
      database: postgreSqlContainer.getDatabase(),
      password: postgreSqlContainer.getPassword(),
      port: postgreSqlContainer.getPort(),
      host: postgreSqlContainer.getHost(),
    });
    try {
      const legacyPlacementOptions = SuperJSON.stringify({ definitionId: "legacy-weather", refreshInterval: 30 });
      await pool.query(`
        CREATE TABLE "user" ("id" varchar(64) PRIMARY KEY NOT NULL);
        CREATE TABLE "groupPermission" (
          "group_id" varchar(64) NOT NULL,
          "permission" text NOT NULL
        );
        CREATE TABLE "item" (
          "id" varchar(64) PRIMARY KEY NOT NULL,
          "kind" varchar(64) NOT NULL,
          "options" text NOT NULL
        );
        CREATE TABLE "custom_widget_definition" (
          "id" varchar(64) PRIMARY KEY NOT NULL,
          "name" varchar(256) NOT NULL,
          "description" text,
          "icon_url" text,
          "url" text NOT NULL,
          "auth_type" varchar(32) DEFAULT 'none' NOT NULL,
          "header_name" varchar(256),
          "method" varchar(16) DEFAULT 'GET' NOT NULL,
          "request_body" text,
          "display_type" varchar(32) DEFAULT 'singleValue' NOT NULL,
          "display_config" text NOT NULL,
          "enabled" boolean DEFAULT true NOT NULL,
          "created_at" timestamp NOT NULL,
          "updated_at" timestamp NOT NULL,
          "creator_id" varchar(64),
          CONSTRAINT "custom_widget_definition_creator_id_user_id_fk"
            FOREIGN KEY ("creator_id") REFERENCES "user"("id") ON DELETE SET NULL
        );
        CREATE TABLE "custom_widget_secret" (
          "kind" varchar(64) NOT NULL,
          "value" text NOT NULL,
          "updated_at" timestamp NOT NULL,
          "definition_id" varchar(64) NOT NULL,
          CONSTRAINT "custom_widget_secret_definition_id_kind_pk" PRIMARY KEY("definition_id", "kind"),
          CONSTRAINT "custom_widget_secret_definition_id_custom_widget_definition_id_fk"
            FOREIGN KEY ("definition_id") REFERENCES "custom_widget_definition"("id") ON DELETE CASCADE
        );
        INSERT INTO "user" ("id") VALUES ('owner');
        INSERT INTO "custom_widget_definition" (
          "id", "name", "url", "auth_type", "method", "display_type", "display_config", "enabled",
          "created_at", "updated_at", "creator_id"
        ) VALUES (
          'legacy-weather', 'Weather', 'https://example.test/weather', 'bearer', 'GET', 'singleValue',
          '{"type":"singleValue","jsonPath":"$.temperature"}', true,
          '2023-11-14 00:00:00', '2023-11-14 00:00:01', 'owner'
        );
        INSERT INTO "custom_widget_secret" ("kind", "value", "updated_at", "definition_id")
        VALUES ('apiKey', 'encrypted.value', '2023-11-14 00:00:01', 'legacy-weather');
        INSERT INTO "groupPermission" ("group_id", "permission") VALUES
          ('editors', 'custom-widget-manage'),
          ('editors', 'custom-widget-secret-write'),
          ('editors', 'board-create');
      `);
      await pool.query(`INSERT INTO "item" ("id", "kind", "options") VALUES ('weather-item', 'customApi', $1)`, [
        legacyPlacementOptions,
      ]);

      await applyMigration(pool, "0010_custom_widget_v2_tables.sql");
      await pool.query(`
        INSERT INTO "custom_widget_v2_definition" (
          "id", "name", "sources", "requests", "options", "template", "enabled",
          "created_at", "updated_at", "creator_id"
        ) VALUES (
          'legacy-weather', 'Weather v2', '[]', '[]', '[]', '<Text>Weather</Text>', true,
          '2023-11-14 00:00:02', '2023-11-14 00:00:03', 'owner'
        );
        INSERT INTO "custom_widget_v2_secret" (
          "source_id", "kind", "encrypted_value", "updated_at", "definition_id"
        ) VALUES ('weather', 'apiKey', 'encrypted.v2-value', '2023-11-14 00:00:03', 'legacy-weather');
      `);

      expect(
        (await pool.query("SELECT id, name, url, enabled, creator_id FROM custom_widget_definition")).rows,
      ).toEqual([
        expect.objectContaining({
          id: "legacy-weather",
          name: "Weather",
          url: "https://example.test/weather",
          enabled: true,
          creator_id: "owner",
        }),
      ]);
      expect((await pool.query("SELECT definition_id, kind, value FROM custom_widget_secret")).rows).toEqual([
        expect.objectContaining({ definition_id: "legacy-weather", kind: "apiKey", value: "encrypted.value" }),
      ]);
      expect((await pool.query("SELECT id, name, template FROM custom_widget_v2_definition")).rows).toEqual([
        expect.objectContaining({ id: "legacy-weather", name: "Weather v2", template: "<Text>Weather</Text>" }),
      ]);
      expect(
        (await pool.query("SELECT definition_id, source_id, kind, encrypted_value FROM custom_widget_v2_secret")).rows,
      ).toEqual([
        expect.objectContaining({
          definition_id: "legacy-weather",
          source_id: "weather",
          kind: "apiKey",
          encrypted_value: "encrypted.v2-value",
        }),
      ]);
      expect((await pool.query("SELECT options FROM item WHERE id = 'weather-item'")).rows).toEqual([
        { options: legacyPlacementOptions },
      ]);
      expect((await pool.query('SELECT "permission" FROM "groupPermission" ORDER BY "permission"')).rows).toEqual([
        { permission: "board-create" },
      ]);
      const v1Columns = (
        await pool.query(
          "SELECT column_name FROM information_schema.columns WHERE table_schema = 'public' AND table_name = 'custom_widget_definition'",
        )
      ).rows.map((column: { column_name: string }) => column.column_name);
      expect(v1Columns).toEqual(expect.arrayContaining(["id", "url", "auth_type", "display_type", "display_config"]));
      expect(v1Columns).not.toContain("sources");
      expect(
        (
          await pool.query(
            "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public' AND table_name LIKE 'legacy_custom_widget%'",
          )
        ).rows,
      ).toEqual([]);
    } finally {
      await pool.end();
      await postgreSqlContainer.stop();
    }
  }, 40_000);
});