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machine.js

  // Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions
  // - XState (all XState exports)
  
  const fetchMachine = Machine({
    type: 'parallel',
    states: {
      Upload: {
        initial: 'DropIdle',
        states: {
          DropIdle: {
            onEntry: ['resetDrop'],
            on: {
              DROP_START: 'DropActive',
            },
          },
          DropActive: {
            onEntry: ['startDrop'],
            on: {
              DROP_CANCEL: 'DropIdle',
              DROP_REJECT: 'DropRejected',
              DROP_ACCEPT: 'DropAccepted',
            },
          },
          DropRejected: {
            onEntry: ['rejectDrop', 'delayDropReset'],
            on: {
              DROP_RESET: 'DropIdle',
            },
          },
          DropAccepted: {
            onEntry: ['acceptDrop', 'processTokens'],
            on: {
              PROCESS_NEW_TOKENS_SUCCESS: 'DropIdle',
              PROCESS_NEW_TOKENS_FAIL: 'DropRejected',
            },
          },
        },
      },
      TokenLookup: {
        initial: 'TokenLookupIdle',
        states: {
          TokenLookupIdle: {
            onEntry: ['startTokenLookupTimer'],
            onExit: ['stopTokenLookupTimer'],
            on: {
              TOKEN_LOOKUP_START: [
                {cond: 'isAutoAuthAvailable', target: 'TokenLookupPending'},
                {target: 'TokenLookupIdle'},
              ],
            },
          },
          TokenLookupPending: {
            onEntry: ['startPending', 'searchForPracticeToken'],
            onExit: ['stopPending'],
            on: {
              TOKEN_LOOKUP_CANCEL: 'TokenLookupIdle',
              PROCESS_NEW_TOKENS_FAIL: 'TokenLookupIdle',
              PROCESS_NEW_TOKENS_SUCCESS: 'TokenLookupIdle',
            },
            initial: 'TokenLookupPendingSearching',
            states: {
              TokenLookupPendingSearching: {
                on: {
                  PROCESS_NEW_TOKENS: 'TokenLookupPendingProcessing',
                },
              },
              TokenLookupPendingProcessing: {
                onEntry: ['processTokens'],
              },
            },
          },
        },
      },
      AuthStatus: {
        initial: 'AuthStatusBoot',
        on: {
          REBOOT: '.AuthStatusBoot',
        },
        states: {
          AuthStatusBoot: {
            on: {
              '': [
                {cond: 'hasValidToken', target: 'Authenticated'},
                {target: 'Unauthenticated'},
              ],
            },
          },
          Unauthenticated: {
            onEntry: ['setUnauthenticated'],
            on: {
              PROCESS_NEW_TOKENS_SUCCESS: {
                target: 'Authenticated',
                actions: ['setNewPractice'],
              },
            },
            initial: 'UnauthenticatedBoot',
            states: {
              UnauthenticatedBoot: {
                on: {
                  '': [
                    {cond: 'isAutoAuthAvailable', target: 'AutoInput'},
                    {target: 'ManualInput'},
                  ],
                },
              },
              AutoInput: {
                onEntry: ['setAuto'],
                on: {
                  USE_MANUAL: {
                    target: 'ManualInput',
                    actions: ['showManualCancel'],
                  },
                },
              },
              ManualInput: {
                onEntry: ['setManual'],
                on: {
                  CANCEL_MANUAL: 'UnauthenticatedBoot',
                },
                initial: 'ManualIdle',
                states: {
                  ManualIdle: {
                    onEntry: ['maybeSetError'],
                    on: {
                      PROCESS_NEW_TOKENS_FAIL: 'ManualIdle',
                      MANUAL_AUTH_SUBMIT: 'ManualPending',
                    },
                  },
                  ManualPending: {
                    onEntry: ['startPending', 'processTokens'],
                    onExit: ['stopPending'],
                    on: {
                      PROCESS_NEW_TOKENS_FAIL: 'ManualIdle',
                    },
                  },
                },
              },
            },
          },
          Authenticated: {
            onEntry: ['setAuthenticated', 'setupPractice'],
            on: {
              CHANGE_PRACTICE: {
                target: 'Unauthenticated',
                actions: ['changePractice'],
              },
              PRACTICE_LOGOUT: {
                target: 'Unauthenticated',
                actions: ['clearPractice'],
              },
              PROCESS_NEW_TOKENS_SUCCESS: {
                target: 'Authenticated',
                actions: ['setNewPractice'],
              },
            },
            initial: 'RefreshPractices',
            states: {
              RefreshPractices: {
                initial: 'RefreshPracticesIdle',
                states: {
                  RefreshPracticesIdle: {
                    onEntry: ['startRefreshPracticesTimer'],
                    onExit: ['stopRefreshPracticesTimer'],
                    on: {
                      REFRESH_PRACTICES_START: 'RefreshPracticesPending',
                    },
                  },
                  RefreshPracticesPending: {
                    onEntry: ['refreshPractices'],
                    onExit: ['setupPractice'],
                    on: {
                      REFRESH_PRACTICES_COMPLETE: 'RefreshPracticesIdle',
                    },
                  },
                },
              },
            },
          },
        },
      }
    },
  }, {
    guards: {
      hasValidToken() {
        return false;
      },
      isAutoAuthAvailable() {
        return false;
      }
    }
  });