package com.baiyue.lastleg.trucking;

import org.junit.jupiter.api.Test;

import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.charset.StandardCharsets;

import static org.junit.jupiter.api.Assertions.assertTrue;

class UsTruckOrderSchemaContractTest {
    @Test
    void baselineContainsOrderAndImmutableHistoryTables() throws Exception {
        String sql;
        try (var input = getClass().getResourceAsStream("/db/lastleg.sql")) {
            sql = new String(input.readAllBytes(), StandardCharsets.UTF_8);
        }
        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_us_truck_order"));
        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_us_truck_order_status_history"));
        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_us_truck_order_pallet"));
        assertTrue(sql.contains("pallet_count INT NOT NULL DEFAULT 0"));
        assertTrue(sql.contains("received_pallet_count INT NOT NULL DEFAULT 0"));
        assertTrue(sql.contains("allocated_pallet_count INT NOT NULL DEFAULT 0"));
        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_us_truck_order_operation"));
        assertTrue(sql.contains("UNIQUE KEY uk_ll_us_truck_operation_key(customer_id,order_id,idempotency_key)"));
        assertTrue(sql.contains("operation_type VARCHAR(64) NOT NULL"));
        assertTrue(sql.contains("idempotency_key VARCHAR(255) NULL COMMENT '操作幂等键'"));
        assertTrue(sql.contains("UNIQUE KEY uk_ll_us_truck_order_key(customer_id,idempotency_key)"));
        assertTrue(sql.contains("KEY idx_ll_us_truck_history(customer_id,order_id,created_at)"));
    }

    @Test
    void unifiedInitializationContainsOperationLedgerAndHistoryColumns() throws Exception {
        String sql = Files.readString(Path.of("..", "deploy", "sql", "海外区域统一增量-MySQL8.sql"),
            StandardCharsets.UTF_8);
        String lower = sql.toLowerCase();
        String normalized = lower.replaceAll("\\s+", "");
        assertTrue(lower.contains("create table ll_us_truck_order_operation"));
        assertTrue(normalized.contains("uk_ll_us_truck_operation_key(customer_id,order_id,idempotency_key)"));
        String history = tableBlock(lower, "ll_us_truck_order_status_history");
        assertTrue(history.contains("operation_type varchar(64)"));
        assertTrue(history.contains("idempotency_key varchar(255)"));
        org.junit.jupiter.api.Assertions.assertFalse(lower.contains("alter table ll_us_truck_order_status_history"));
    }

    private static String tableBlock(String sql, String table) {
        int start = sql.indexOf("create table " + table + " (");
        int end = sql.indexOf(';', start);
        return start < 0 || end < 0 ? "" : sql.substring(start, end);
    }

    @Test
    void newTruckDemandFieldsExistAndRemovedInputsAreAbsentInBothBaselines() throws Exception {
        String baseline;
        try (var input = getClass().getResourceAsStream("/db/lastleg.sql")) {
            baseline = new String(input.readAllBytes(), StandardCharsets.UTF_8);
        }
        String unified = Files.readString(Path.of("..", "deploy", "sql", "海外区域统一增量-MySQL8.sql"), StandardCharsets.UTF_8);
        for (String sql : java.util.List.of(baseline, unified)) {
            String normalized = sql.toLowerCase().replace("create table if not exists", "create table");
            String block = tableBlock(normalized, "ll_us_truck_order");
            for (String column : java.util.List.of("vehicle_type", "origin_contact_name", "origin_contact_phone", "destination_contact_name", "destination_contact_phone", "pickup_at", "delivery_at")) assertTrue(block.contains(column));
            for (String removed : java.util.List.of("transport_type", "container_type", "requested_date")) org.junit.jupiter.api.Assertions.assertFalse(block.contains(removed));

        }
    }
}