import 'package:dio/dio.dart';

import '../about/external/data/pages/request/CommitmentsRequest.dart';
import '../about/external/data/pages/request/HistoryRequest.dart';
import '../about/external/initial/AbandonRequest.dart';
import '../about/external/initial/AmnestyRequest.dart';
import '../about/external/initial/CommitmentRequest.dart';
import '../about/external/initial/CompletionRequest.dart';
import '../about/external/initial/DeferralRequest.dart';
import '../about/external/initial/DeviceRequest.dart';
import '../about/external/initial/GoalRequest.dart';
import '../about/external/initial/IdRequest.dart';
import '../about/external/initial/LoginData.dart';
import '../about/external/initial/ReportCardRequest.dart';
import '../about/external/initial/SessionLogRequest.dart';
import '../about/external/initial/SickModeRequest.dart';
import '../about/external/initial/ToneRequest.dart';
import '../about/internal/application/MeDescription.dart';
import '../about/internal/application/Pair.dart';
import '../configs/Env.dart';
import '../memory/ConnectInternalMemory.dart';
import 'CommsDirections.dart';
import 'ConnectComms.dart';

class Comms implements ConnectComms {
  Dio dio = Dio();

  ConnectInternalMemory helper;

  Comms(this.helper);

  /// Builds the identity headers and resolves the URL. Headers are reset on
  /// every call so a stale Authorization can never leak into an auth-flow
  /// request.
  Future<Pair> getRequestHeaders(String url, String urlData) async {
    dio.options.headers = <String, dynamic>{};

    MeDescription data = await helper.getMyDescription();

    if (data.token.isNotEmpty && url != deviceToken) {
      dio.options.headers["Authorization"] = "Bearer ${data.token}";
    }

    if (url == logoutRequest) {
      dio.options.headers.remove("Authorization");
    }

    dio.options.contentType = Headers.jsonContentType;

    dio.options.responseType = ResponseType.json;

    // The backend identity contract: what = encrypted access code,
    // whom = encrypted device id, version = the app build.
    dio.options.headers["what"] = data.name;

    dio.options.headers["whom"] = data.id;

    dio.options.headers["version"] = localisedAppVersion;

    return Pair("${_routeFor(url)}$url$urlData", dio.options.headers);
  }

  /// Auth-flow paths go to Prospect, training paths to Training, everything
  /// else to the Discipline service.
  String _routeFor(String url) {
    if (url == deviceReg ||
        url == deviceToken ||
        url == loginUser ||
        url == logoutRequest ||
        url == aboutMe ||
        url == accountRecovery ||
        url.startsWith('InAugurate/')) {
      return prospectRoute;
    }

    if (url.startsWith('Program/') ||
        url.startsWith('Session/') ||
        url.startsWith('Metrics/')) {
      return trainingRoute;
    }

    return disciplineRoute;
  }

  // ── Auth ──────────────────────────────────────────────────────────────────

  @override
  Future<Response> registerDevice(DeviceRequest request) async {
    Pair navigation = await getRequestHeaders(deviceReg, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> registerDeviceToken(String token) async {
    Pair navigation = await getRequestHeaders(deviceToken, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: <String, dynamic>{"token": token});
  }

  @override
  Future<Response> login(LoginData request) async {
    Pair navigation = await getRequestHeaders(loginUser, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> logout() async {
    Pair navigation = await getRequestHeaders(logoutRequest, "");
    dio.options.headers = navigation.value;
    return await dio.get(navigation.key);
  }

  @override
  Future<Response> me() async {
    Pair navigation = await getRequestHeaders(aboutMe, "");
    dio.options.headers = navigation.value;
    return await dio.get(navigation.key);
  }

  // ── Goals ─────────────────────────────────────────────────────────────────

  @override
  Future<Response> getMyGoals(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(myGoals, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> saveGoalEntry(GoalRequest request) async {
    Pair navigation = await getRequestHeaders(saveGoal, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getGoalTasks(IdRequest request) async {
    Pair navigation = await getRequestHeaders(goalTasks, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> archiveGoalEntry(IdRequest request) async {
    Pair navigation = await getRequestHeaders(archiveGoal, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  // ── Commitments ───────────────────────────────────────────────────────────

  @override
  Future<Response> getTodayPlan(CommitmentsRequest request) async {
    Pair navigation = await getRequestHeaders(todayPlan, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getMyCommitments(CommitmentsRequest request) async {
    Pair navigation = await getRequestHeaders(myCommitments, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getOverdueQueue(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(overdueQueue, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> saveCommitmentEntry(CommitmentRequest request) async {
    Pair navigation = await getRequestHeaders(saveCommitment, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> updateCommitmentEntry(CommitmentRequest request) async {
    Pair navigation = await getRequestHeaders(updateCommitment, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> deleteCommitmentEntry(IdRequest request) async {
    Pair navigation = await getRequestHeaders(deleteCommitment, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> completeCommitmentEntry(CompletionRequest request) async {
    Pair navigation = await getRequestHeaders(completeCommitment, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> deferCommitmentEntry(DeferralRequest request) async {
    Pair navigation = await getRequestHeaders(deferCommitment, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> abandonCommitmentEntry(AbandonRequest request) async {
    Pair navigation = await getRequestHeaders(abandonCommitment, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getCommitmentHistory(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(commitmentHistory, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getCommitmentEvents(IdRequest request) async {
    Pair navigation = await getRequestHeaders(commitmentEvents, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  // ── Capacity ──────────────────────────────────────────────────────────────

  @override
  Future<Response> checkCapacity(CommitmentsRequest request) async {
    Pair navigation = await getRequestHeaders(capacityCheck, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getCapacityProfileEntry() async {
    Pair navigation = await getRequestHeaders(capacityProfilePath, "");
    dio.options.headers = navigation.value;
    return await dio.get(navigation.key);
  }

  // ── Debt & standing ───────────────────────────────────────────────────────

  @override
  Future<Response> getDebtSummary() async {
    Pair navigation = await getRequestHeaders(debtSummary, "");
    dio.options.headers = navigation.value;
    return await dio.get(navigation.key);
  }

  @override
  Future<Response> getDebtLedger(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(debtLedger, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getDebtTrend(ReportCardRequest request) async {
    Pair navigation = await getRequestHeaders(debtTrendPath, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getStanding() async {
    Pair navigation = await getRequestHeaders(standingPath, "");
    dio.options.headers = navigation.value;
    return await dio.get(navigation.key);
  }

  @override
  Future<Response> getStandingHistory(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(standingHistory, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  // ── Excuses ───────────────────────────────────────────────────────────────

  @override
  Future<Response> getExcuseClusters(ReportCardRequest request) async {
    Pair navigation = await getRequestHeaders(excuseClusters, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  // ── Proof ─────────────────────────────────────────────────────────────────

  @override
  Future<Response> uploadPhotoProof(FormData request) async {
    Pair navigation = await getRequestHeaders(uploadProofPhoto, "");
    dio.options.headers = navigation.value;
    dio.options.contentType = Headers.multipartFormDataContentType;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> submitTimerProofEntry(CompletionRequest request) async {
    Pair navigation = await getRequestHeaders(submitTimerProof, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> submitLocationProofEntry(CompletionRequest request) async {
    Pair navigation = await getRequestHeaders(submitLocationProof, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  // ── Guardrails ────────────────────────────────────────────────────────────

  @override
  Future<Response> spendAmnestyToken(AmnestyRequest request) async {
    Pair navigation = await getRequestHeaders(spendAmnesty, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getAmnestyBalance() async {
    Pair navigation = await getRequestHeaders(amnestyBalance, "");
    dio.options.headers = navigation.value;
    return await dio.get(navigation.key);
  }

  @override
  Future<Response> updateSickMode(SickModeRequest request) async {
    Pair navigation = await getRequestHeaders(setSickMode, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> checkDistress() async {
    Pair navigation = await getRequestHeaders(distressCheck, "");
    dio.options.headers = navigation.value;
    return await dio.get(navigation.key);
  }

  @override
  Future<Response> updateTone(ToneRequest request) async {
    Pair navigation = await getRequestHeaders(setTone, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  // ── Habits & routines ─────────────────────────────────────────────────────

  @override
  Future<Response> getMyHabits(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(myHabits, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> saveHabitEntry(Map<String, dynamic> request) async {
    Pair navigation = await getRequestHeaders(saveHabit, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> logHabitEntry(IdRequest request) async {
    Pair navigation = await getRequestHeaders(logHabit, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getKeystoneHabits() async {
    Pair navigation = await getRequestHeaders(keystoneHabits, "");
    dio.options.headers = navigation.value;
    return await dio.get(navigation.key);
  }

  @override
  Future<Response> getMyRoutines(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(myRoutines, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> logRoutineChainEntry(Map<String, dynamic> request) async {
    Pair navigation = await getRequestHeaders(logRoutineChain, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  // ── Training ──────────────────────────────────────────────────────────────

  @override
  Future<Response> getMyPrograms(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(myPrograms, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> saveProgramEntry(Map<String, dynamic> request) async {
    Pair navigation = await getRequestHeaders(saveProgram, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> activateProgramEntry(IdRequest request) async {
    Pair navigation = await getRequestHeaders(activateProgram, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getProgramSessions(IdRequest request) async {
    Pair navigation = await getRequestHeaders(programSessions, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> startSessionEntry(IdRequest request) async {
    Pair navigation = await getRequestHeaders(startSession, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> saveSessionLogEntry(SessionLogRequest request) async {
    Pair navigation = await getRequestHeaders(saveSessionLog, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getSessionHistory(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(sessionHistory, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getLastSessionFor(IdRequest request) async {
    Pair navigation = await getRequestHeaders(lastSessionFor, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getWeeklyVolume(ReportCardRequest request) async {
    Pair navigation = await getRequestHeaders(weeklyVolume, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getContactVolume(ReportCardRequest request) async {
    Pair navigation = await getRequestHeaders(contactVolume, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getPersonalRecords(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(personalRecords, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  // ── Report card ───────────────────────────────────────────────────────────

  @override
  Future<Response> getWeeklyReportCard(ReportCardRequest request) async {
    Pair navigation = await getRequestHeaders(weeklyReportCard, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> getMonthlyReportCard(ReportCardRequest request) async {
    Pair navigation = await getRequestHeaders(monthlyReportCard, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  // ── Notifications ─────────────────────────────────────────────────────────

  @override
  Future<Response> getMyNotifications(HistoryRequest request) async {
    Pair navigation = await getRequestHeaders(myNotifications, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }

  @override
  Future<Response> acknowledgeNudgeEntry(IdRequest request) async {
    Pair navigation = await getRequestHeaders(acknowledgeNudge, "");
    dio.options.headers = navigation.value;
    return await dio.post(navigation.key, data: request);
  }
}