package roomescape.util

import io.restassured.module.kotlin.extensions.Extract
import io.restassured.module.kotlin.extensions.Given
import io.restassured.module.kotlin.extensions.Then
import io.restassured.module.kotlin.extensions.When
import io.restassured.response.Response
import io.restassured.response.ValidatableResponse
import io.restassured.specification.RequestSpecification
import org.springframework.http.MediaType
import roomescape.admin.infrastructure.persistence.AdminEntity
import roomescape.admin.infrastructure.persistence.AdminRepository
import roomescape.auth.web.LoginRequest
import roomescape.auth.web.LoginRequestV2
import roomescape.common.config.next
import roomescape.common.dto.PrincipalType
import roomescape.member.infrastructure.persistence.*

class AuthUtil(
    private val memberRepository: MemberRepository,
    private val userRepository: UserRepository,
    private val adminRepository: AdminRepository
) {
    fun login(email: String, password: String, role: Role = Role.MEMBER): String {
        if (!memberRepository.existsByEmail(email)) {
            memberRepository.save(
                MemberEntity(
                    _id = tsidFactory.next(),
                    email = email,
                    password = password,
                    name = email.split("@").first(),
                    role = role
                )
            )
        }

        return Given {
            contentType(MediaType.APPLICATION_JSON_VALUE)
            body(LoginRequest(email, password))
        } When {
            post("/login")
        } Then {
            statusCode(200)
        } Extract {
            path("data.accessToken")
        }
    }

    fun loginAsAdmin(): String {
        return login(MemberFixture.admin.email, MemberFixture.admin.password, Role.ADMIN)
    }

    fun loginAsUser(): String {
        return login(MemberFixture.user.email, MemberFixture.user.password)
    }

    fun getUser(): MemberEntity = memberRepository.findByEmailAndPassword(
        MemberFixture.user.email,
        MemberFixture.user.password
    ) ?: throw AssertionError("Unexpected Exception Occurred.")



    fun adminLogin(admin: AdminEntity): String {
        if (adminRepository.findByAccount(admin.account) == null) {
            adminRepository.save(admin)
        }

        return Given {
            contentType(MediaType.APPLICATION_JSON_VALUE)
            body(LoginRequestV2(account = admin.account, password = admin.password, principalType = PrincipalType.ADMIN))
        } When {
            post("/auth/login")
        } Then {
            statusCode(200)
        } Extract {
            path("data.accessToken")
        }
    }

    fun defaultAdminLogin(): String = adminLogin(AdminFixture.default)

    fun userLogin(user: UserEntity): String {
        if (userRepository.findByEmail(user.email) == null) {
            userRepository.save(user)
        }

        return Given {
            contentType(MediaType.APPLICATION_JSON_VALUE)
            body(LoginRequestV2(account = user.email, password = user.password, principalType = PrincipalType.USER))
        } When {
            post("/auth/login")
        } Then {
            statusCode(200)
        } Extract {
            path("data.accessToken")
        }
    }

    fun defaultUserLogin(): String = userLogin(UserFixture.default)
}

fun runTest(
    token: String? = null,
    using: RequestSpecification.() -> RequestSpecification = { this },
    on: RequestSpecification.() -> Response,
    expect: ValidatableResponse.() -> Unit
): ValidatableResponse {
    return Given {
        contentType(MediaType.APPLICATION_JSON_VALUE)
        token?.also { header("Authorization", "Bearer $token") }
        using()
    } When {
        on()
    } Then {
        expect()
    }
}

/**
 * @param props: RestAssured 응답 Body 에서 존재 & Null 여부를 확인할 프로퍼티 이름
 */
fun ValidatableResponse.assertProperties(props: Set<String>, propsNameIfList: String? = null) {
    val jsonDefaultPath = propsNameIfList?.let { "data.$propsNameIfList" } ?: "data"
    val json = extract().jsonPath().get<Any>(jsonDefaultPath)

    fun checkMap(map: Map<*, *>) {
        val responseKeys = map.keys.map { it.toString() }.toSet()
        val expectedKeys = props

        val missing = expectedKeys - responseKeys
        val extra = responseKeys - expectedKeys

        require(missing.isEmpty() && extra.isEmpty()) {
            buildString {
                if (missing.isNotEmpty()) append("Missing keys: $missing. ")
                if (extra.isNotEmpty()) append("Unexpected keys: $extra.")
            }
        }

        expectedKeys.forEach { key ->
            require(map[key] != null) { "Property '$key' is null" }
        }
    }

    when (json) {
        is List<*> -> json.forEach { item ->
            val map = item as? Map<*, *> ?: error("Expected Map but got ${item?.javaClass}")
            checkMap(map)
        }

        is Map<*, *> -> checkMap(json)
        else -> error("Unexpected data type: ${json::class}")
    }
}