Generated by XState Viz: https://xstate.js.org/viz

machine.js

const mhrMachine = Machine({
    id: 'mhrMachine',
    initial: 'metaData',
    states: {
        metaData: {
            initial: 'empty',
            states: {
                empty: {
                    on: {
                        METADATA_CACHE_REUSED: 'populated',
                        METADATA_LOADING: 'loading'
                    }
                },
                loading: {
                    on: {
                        METADATA_LOAD_SUCCESS: 'populated',
                        METADATA_LOAD_FAILED: 'failed'
                    }
                },
                failed: {},
                populated: {
                    initial: 'searchParams',
                    states: {
                        searchParams: {
                            initial: 'empty',
                            states: {
                                empty: {
                                    on: {
                                        SEARCHPARAMS_ADDED: 'populated'
                                    }
                                },
                                populated: {
                                    initial: 'unknown',
                                    states: {
                                        unknown: {
                                            on: {
                                                SEARCHPARAMS_VALIDATION_PASSED: 'valid',
                                                SEARCHPARAMS_VALIDATION_FAILED: 'invalid'
                                            }
                                        },
                                        valid: {
                                            initial: 'referenceData',
                                            states: {
                                                referenceData: {
                                                    initial: 'empty',
                                                    states: {
                                                        empty: {
                                                            on: {
                                                                REFERENCE_DATA_LOADING: 'loading'
                                                            }
                                                        },
                                                        loading: {
                                                            on: {
                                                                REFERENCE_DATA_LOADED: 'populated',
                                                                REFERENCE_DATA_LOADING_FAILED: 'failed'
                                                            }
                                                        },
                                                        failed: {},
                                                        populated: {
                                                            on: {
                                                                REFERENCE_DATA_LOADING: 'loading'
                                                            }
                                                        }
                                                    }
                                                }
                                            }
                                        },
                                        invalid: {}
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
});