import { Lang } from "@/constants/languages"
import { env } from "@/env/server"
import * as api from "@/lib/api"
import {
  protectedProcedure,
  router,
  safeProtectedProcedure,
} from "@/server/trpc"

import { countries } from "@/components/TempDesignSystem/Form/Country/countries"
import * as maskValue from "@/utils/maskValue"
import { getMembership, getMembershipCards } from "@/utils/user"

import encryptValue from "../utils/encryptValue"
import {
  friendTransactionsInput,
  getUserInputSchema,
  staysInput,
} from "./input"
import {
  creditCardsSchema,
  FriendTransaction,
  getFriendTransactionsSchema,
  getMembershipCardsSchema,
  getStaysSchema,
  getUserSchema,
  Stay,
} from "./output"
import { benefits, extendedUser, nextLevelPerks } from "./temp"

import type { Session } from "next-auth"

import { RewardTransactionTypes } from "@/types/components/myPages/myPage/enums"
import type {
  LoginType,
  TrackingSDKUserData,
} from "@/types/components/tracking"

async function getVerifiedUser({ session }: { session: Session }) {
  const now = Date.now()

  if (session.token.expires_at && session.token.expires_at < now) {
    return { error: true, cause: "token_expired" } as const
  }
  console.info("api.user.profile start", JSON.stringify({}))
  const apiResponse = await api.get(api.endpoints.v1.profile, {
    cache: "no-store",
    headers: {
      Authorization: `Bearer ${session.token.access_token}`,
    },
  })

  if (!apiResponse.ok) {
    const text = await apiResponse.text()
    console.error(
      "api.user.profile error",
      JSON.stringify({
        error: {
          status: apiResponse.status,
          statusText: apiResponse.statusText,
          text,
        },
      })
    )
    if (apiResponse.status === 401) {
      return { error: true, cause: "unauthorized" } as const
    } else if (apiResponse.status === 403) {
      return { error: true, cause: "forbidden" } as const
    } else if (apiResponse.status === 404) {
      return { error: true, cause: "notfound" } as const
    }
    return {
      error: true,
      cause: "unknown",
      status: apiResponse.status,
    } as const
  }

  const apiJson = await apiResponse.json()
  if (!apiJson.data?.attributes) {
    console.error("api.user.profile data error", JSON.stringify({})) // not passing the data to avoid logging sensitive data
    return null
  }

  const verifiedData = getUserSchema.safeParse(apiJson.data.attributes)
  if (!verifiedData.success) {
    console.error(
      "api.user.profile validation error",
      JSON.stringify({
        errors: verifiedData.error,
      })
    )
    return null
  }
  console.info("api.user.profile success", JSON.stringify({}))
  return verifiedData
}

function fakingRequest<T>(payload: T): Promise<T> {
  return new Promise((resolve) => {
    setTimeout(() => {
      resolve(payload)
    }, 1500)
  })
}

async function updateStaysBookingUrl(
  data: Stay[],
  token: string,
  lang: Lang
): Promise<Stay[]>

async function updateStaysBookingUrl(
  data: FriendTransaction[],
  token: string,
  lang: Lang
): Promise<FriendTransaction[]>

async function updateStaysBookingUrl(
  data: Stay[] | FriendTransaction[],
  token: string,
  lang: Lang
) {
  // Tenporary API call needed till we have user name in ctx session data
  console.info("api.user.profile start", JSON.stringify({}))
  const apiResponse = await api.get(api.endpoints.v1.profile, {
    cache: "no-store",
    headers: {
      Authorization: `Bearer ${token}`,
    },
  })

  // Temporary Url, domain and lang support for current web
  let localeDomain = env.PUBLIC_URL
  let fullBookingUrl = localeDomain + "/hotelreservation/my-booking"
  switch (lang) {
    case Lang.sv:
      localeDomain = localeDomain?.replace(".com", ".se")
      fullBookingUrl = localeDomain + "/hotelreservation/din-bokning"
      break
    case Lang.no:
      localeDomain = localeDomain?.replace(".com", ".no")
      fullBookingUrl = localeDomain + "/hotelreservation/my-booking"
      break
    case Lang.da:
      localeDomain = localeDomain?.replace(".com", ".dk")
      fullBookingUrl = localeDomain + "/hotelreservation/min-booking"
      break
    case Lang.fi:
      localeDomain = localeDomain?.replace(".com", ".fi")
      fullBookingUrl = localeDomain + "/varaa-hotelli/varauksesi"
      break
    case Lang.de:
      localeDomain = localeDomain?.replace(".com", ".de")
      fullBookingUrl = localeDomain + "/hotelreservation/my-booking"
      break
    default:
      break
  }

  if (apiResponse.ok) {
    console.info("api.user.profile success", JSON.stringify({}))
    const apiJson = await apiResponse.json()
    if (apiJson.data?.attributes) {
      return data.map((d) => {
        const originalString =
          d.attributes.confirmationNumber.toString() +
          "," +
          apiJson.data.attributes.lastName
        const encryptedBookingValue = encryptValue(originalString)
        const bookingUrl = !!encryptedBookingValue
          ? fullBookingUrl + "?RefId=" + encryptedBookingValue
          : fullBookingUrl +
            "?lastName=" +
            apiJson.data.attributes.lastName +
            "&bookingId=" +
            d.attributes.confirmationNumber
        return {
          ...d,
          attributes: {
            ...d.attributes,
            bookingUrl: bookingUrl,
          },
        }
      })
    }
  }
  console.info("api.user.profile error", JSON.stringify({ error: apiResponse }))

  return data
}

export const userQueryRouter = router({
  get: protectedProcedure
    .input(getUserInputSchema)
    .query(async function getUser({ ctx, input }) {
      const data = await getVerifiedUser({ session: ctx.session })

      if (!data) {
        return null
      }

      if ("error" in data) {
        return data
      }

      const verifiedData = data

      const country = countries.find(
        (c) => c.code === verifiedData.data.address.countryCode
      )

      const user = {
        ...extendedUser,
        address: {
          city: verifiedData.data.address.city,
          country: country?.name ?? "",
          countryCode: verifiedData.data.address.countryCode,
          streetAddress: verifiedData.data.address.streetAddress,
          zipCode: verifiedData.data.address.zipCode,
        },
        dateOfBirth: verifiedData.data.dateOfBirth,
        email: verifiedData.data.email,
        firstName: verifiedData.data.firstName,
        language: verifiedData.data.language,
        lastName: verifiedData.data.lastName,
        memberships: verifiedData.data.memberships,
        name: `${verifiedData.data.firstName} ${verifiedData.data.lastName}`,
        phoneNumber: verifiedData.data.phoneNumber,
        profileId: verifiedData.data.profileId,
      }

      if (input.mask) {
        if (user.address.city) {
          user.address.city = maskValue.text(user.address.city)
        }
        if (user.address.streetAddress) {
          user.address.streetAddress = maskValue.text(
            user.address.streetAddress
          )
        }

        user.address.zipCode = verifiedData.data.address?.zipCode
          ? maskValue.text(verifiedData.data.address.zipCode)
          : ""
        user.email = maskValue.email(user.email)

        user.phoneNumber = user.phoneNumber
          ? maskValue.phone(user.phoneNumber)
          : ""
      }

      return user
    }),
  name: safeProtectedProcedure.query(async function ({ ctx }) {
    if (!ctx.session) {
      return null
    }
    const verifiedData = await getVerifiedUser({ session: ctx.session })

    if (!verifiedData || "error" in verifiedData) {
      return null
    }
    return {
      firstName: verifiedData.data.firstName,
      lastName: verifiedData.data.lastName,
    }
  }),
  membershipLevel: safeProtectedProcedure.query(async function ({ ctx }) {
    if (!ctx.session) {
      return null
    }
    const verifiedData = await getVerifiedUser({ session: ctx.session })

    if (!verifiedData || "error" in verifiedData) {
      return null
    }

    const membershipLevel = getMembership(verifiedData.data.memberships)
    return membershipLevel
  }),
  tracking: safeProtectedProcedure.query(async function ({ ctx }) {
    const notLoggedInUserTrackingData: TrackingSDKUserData = {
      loginStatus: "Non-logged in",
    }

    if (!ctx.session) {
      return notLoggedInUserTrackingData
    }
    const verifiedUserData = await getVerifiedUser({ session: ctx.session })

    if (!verifiedUserData || "error" in verifiedUserData) {
      return notLoggedInUserTrackingData
    }

    const params = new URLSearchParams()
    params.set("limit", "1")

    console.info(
      "api.booking.stays.past start",
      JSON.stringify({ query: { params } })
    )
    const previousStaysResponse = await api.get(
      api.endpoints.v1.previousStays,
      {
        headers: {
          Authorization: `Bearer ${ctx.session.token.access_token}`,
        },
      },
      params
    )

    if (!previousStaysResponse.ok) {
      console.error(
        "api.booking.stays.past error",
        JSON.stringify({
          error: {
            status: previousStaysResponse.status,
            statusText: previousStaysResponse.statusText,
          },
        })
      )
      return notLoggedInUserTrackingData
    }

    const previousStaysApiJson = await previousStaysResponse.json()
    const verifiedPreviousStaysData =
      getStaysSchema.safeParse(previousStaysApiJson)
    if (!verifiedPreviousStaysData.success) {
      console.error(
        "api.booking.stays.past validation error, ",
        JSON.stringify({ error: verifiedPreviousStaysData.error })
      )
      return notLoggedInUserTrackingData
    }
    console.info("api.booking.stays.past success", JSON.stringify({}))

    const membership = getMembership(verifiedUserData.data.memberships)

    const loggedInUserTrackingData: TrackingSDKUserData = {
      loginStatus: "logged in",
      loginType: ctx.session.token.loginType as LoginType,
      memberId: membership?.membershipNumber,
      memberLevel: membership?.membershipLevel,
      noOfNightsStayed: verifiedPreviousStaysData.data.links?.totalCount ?? 0,
      totalPointsAvailableToSpend: membership?.currentPoints,
      loginAction: "login success",
    }
    return loggedInUserTrackingData
  }),
  benefits: router({
    current: protectedProcedure.query(async function (opts) {
      // TODO: Make request to get user data from Scandic API
      return await fakingRequest<typeof benefits>(benefits)
    }),
    nextLevel: protectedProcedure.query(async function (opts) {
      // TODO: Make request to get user data from Scandic API
      return await fakingRequest<typeof nextLevelPerks>(nextLevelPerks)
    }),
  }),

  stays: router({
    previous: protectedProcedure
      .input(staysInput)
      .query(async ({ ctx, input }) => {
        const { limit, cursor } = input
        const params: Record<string, string> = { limit }
        if (cursor) {
          params.offset = cursor
        }
        console.info(
          "api.booking.stays.past start",
          JSON.stringify({ query: { params: params.toString() } })
        )

        const apiResponse = await api.get(
          api.endpoints.v1.previousStays,
          {
            headers: {
              Authorization: `Bearer ${ctx.session.token.access_token}`,
            },
          },
          params
        )

        if (!apiResponse.ok) {
          const text = await apiResponse.text()
          console.error(
            "api.booking.stays.past error ",
            JSON.stringify({
              query: { params: params.toString() },
              error: {
                status: apiResponse.status,
                statusText: apiResponse.statusText,
                text,
              },
            })
          )
          return null
        }

        const apiJson = await apiResponse.json()

        const verifiedData = getStaysSchema.safeParse(apiJson)
        if (!verifiedData.success) {
          console.error(
            "api.booking.stays.past validation error ",
            JSON.stringify({
              query: { params: params.toString() },
              error: verifiedData.error,
            })
          )

          return null
        }
        console.info(
          "api.booking.stays.past success",
          JSON.stringify({ query: { params: params.toString() } })
        )
        const nextCursor =
          verifiedData.data.links &&
          verifiedData.data.links.offset < verifiedData.data.links.totalCount
            ? verifiedData.data.links.offset
            : undefined

        const updatedData = await updateStaysBookingUrl(
          verifiedData.data.data,
          ctx.session.token.access_token,
          ctx.lang
        )

        return {
          data: updatedData,
          nextCursor,
        }
      }),

    upcoming: protectedProcedure
      .input(staysInput)
      .query(async ({ ctx, input }) => {
        const { limit, cursor } = input

        const params: Record<string, string> = { limit }
        if (cursor) {
          params.offset = cursor
        }
        console.info(
          "api.booking.stays.future start",
          JSON.stringify({ query: { params: params.toString() } })
        )
        const apiResponse = await api.get(
          api.endpoints.v1.upcomingStays,
          {
            headers: {
              Authorization: `Bearer ${ctx.session.token.access_token}`,
            },
          },
          params
        )

        if (!apiResponse.ok) {
          const text = await apiResponse.text()
          console.error(
            "api.booking.stays.future error ",
            JSON.stringify({
              query: { params: params.toString() },
              error: {
                status: apiResponse.status,
                statusText: apiResponse.statusText,
                text,
              },
            })
          )
          return null
        }

        const apiJson = await apiResponse.json()
        const verifiedData = getStaysSchema.safeParse(apiJson)
        if (!verifiedData.success) {
          console.error(
            "api.booking.stays.future validation error ",
            JSON.stringify({
              query: { params: params.toString() },
              error: verifiedData.error,
            })
          )
          return null
        }
        console.info("api.booking.stays.future success", {
          query: { params: params.toString() },
        })
        const nextCursor =
          verifiedData.data.links &&
          verifiedData.data.links.offset < verifiedData.data.links.totalCount
            ? verifiedData.data.links.offset
            : undefined

        const updatedData = await updateStaysBookingUrl(
          verifiedData.data.data,
          ctx.session.token.access_token,
          ctx.lang
        )

        return {
          data: updatedData,
          nextCursor,
        }
      }),
  }),
  transaction: router({
    friendTransactions: protectedProcedure
      .input(friendTransactionsInput)
      .query(async ({ ctx, input }) => {
        const { limit, page } = input
        console.info(
          "api.transaction.friendTransactions start",
          JSON.stringify({})
        )
        const apiResponse = await api.get(api.endpoints.v1.friendTransactions, {
          cache: undefined, // override defaultOptions
          headers: {
            Authorization: `Bearer ${ctx.session.token.access_token}`,
          },
          next: { revalidate: 30 * 60 * 1000 },
        })

        if (!apiResponse.ok) {
          // switch (apiResponse.status) {
          //   case 400:
          //     throw badRequestError()
          //   case 401:
          //     throw unauthorizedError()
          //   case 403:
          //     throw forbiddenError()
          //   default:
          //     throw internalServerError()
          // }
          const text = await apiResponse.text()
          console.error(
            "api.transaction.friendTransactions error ",
            JSON.stringify({
              error: {
                status: apiResponse.status,
                statusText: apiResponse.statusText,
                text,
              },
            })
          )
          return null
        }

        const apiJson = await apiResponse.json()
        const verifiedData = getFriendTransactionsSchema.safeParse(apiJson)
        if (!verifiedData.success) {
          console.error(
            "api.transaction.friendTransactions validation error ",
            JSON.stringify({ error: verifiedData.error })
          )
          return null
        }

        console.info(
          "api.transaction.friendTransactions success",
          JSON.stringify({})
        )
        const updatedData = await updateStaysBookingUrl(
          verifiedData.data.data,
          ctx.session.token.access_token,
          ctx.lang
        )

        const pageData = updatedData
          .filter((t) => t.type !== RewardTransactionTypes.expired)
          .sort((a, b) => {
            // 'BALFWD' are transactions from Opera migration that happended in May 2021
            if (a.attributes.confirmationNumber === "BALFWD") return 1
            if (b.attributes.confirmationNumber === "BALFWD") return -1

            const dateA = new Date(
              a.attributes.checkinDate
                ? a.attributes.checkinDate
                : a.attributes.transactionDate
            )
            const dateB = new Date(
              b.attributes.checkinDate
                ? b.attributes.checkinDate
                : b.attributes.transactionDate
            )

            return dateA > dateB ? -1 : 1
          })

        const slicedData = pageData.slice(limit * (page - 1), limit * page)

        return {
          data: {
            transactions: slicedData.map(({ type, attributes }) => {
              return {
                type,
                awardPoints: attributes.awardPoints,
                checkinDate: attributes.checkinDate,
                checkoutDate: attributes.checkoutDate,
                city: attributes.hotelInformation?.city,
                confirmationNumber: attributes.confirmationNumber,
                hotelName: attributes.hotelInformation?.name,
                nights: attributes.nights,
                pointsCalculated: attributes.pointsCalculated,
                hotelId: attributes.hotelOperaId,
                transactionDate: attributes.transactionDate,
                bookingUrl: attributes.bookingUrl,
              }
            }),
          },
          meta: {
            totalPages: Math.ceil(pageData.length / limit),
          },
        }
      }),
  }),

  creditCards: protectedProcedure.query(async function ({ ctx }) {
    console.info("api.profile.creditCards start", JSON.stringify({}))
    const apiResponse = await api.get(api.endpoints.v1.creditCards, {
      cache: "no-store",
      headers: {
        Authorization: `Bearer ${ctx.session.token.access_token}`,
      },
    })

    if (!apiResponse.ok) {
      const text = await apiResponse.text()
      console.error(
        "api.profile.creditCards error ",
        JSON.stringify({
          error: {
            status: apiResponse.status,
            statusText: apiResponse.statusText,
            text,
          },
        })
      )
      return null
    }

    const apiJson = await apiResponse.json()
    const verifiedData = creditCardsSchema.safeParse(apiJson)
    if (!verifiedData.success) {
      console.error(
        "api.profile.creditCards validation error ",
        JSON.stringify({ error: verifiedData.error })
      )
      return null
    }
    console.info("api.profile.creditCards success", JSON.stringify({}))
    return verifiedData.data.data
  }),

  membershipCards: protectedProcedure.query(async function ({ ctx }) {
    console.info("api.profile start", JSON.stringify({}))
    const apiResponse = await api.get(api.endpoints.v1.profile, {
      cache: "no-store",
      headers: {
        Authorization: `Bearer ${ctx.session.token.access_token}`,
      },
    })

    if (!apiResponse.ok) {
      // switch (apiResponse.status) {
      //   case 400:
      //     throw badRequestError()
      //   case 401:
      //     throw unauthorizedError()
      //   case 403:
      //     throw forbiddenError()
      //   default:
      //     throw internalServerError()
      // }
      const text = await apiResponse.text()
      console.log(
        "api.profile error",
        JSON.stringify({
          error: {
            status: apiResponse.status,
            statusText: apiResponse.statusText,
            text,
          },
        })
      )
    }

    const apiJson = await apiResponse.json()

    const verifiedData = getMembershipCardsSchema.safeParse(
      apiJson.data.attributes.memberships
    )

    if (!verifiedData.success) {
      console.error(
        "api.profile validation error",
        JSON.stringify({ error: verifiedData })
      )
      return null
    }
    console.info("api.profile success", JSON.stringify({}))
    const cards = getMembershipCards(verifiedData.data)

    return cards
  }),
})