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| 1 | +/* eslint-disable @typescript-eslint/no-explicit-any */ |
| 2 | + |
| 3 | +import { |
| 4 | + DoneActorEvent, |
| 5 | + ErrorActorEvent, |
| 6 | + EventObject, |
| 7 | + SnapshotFrom, |
| 8 | + assign, |
| 9 | + fromPromise, |
| 10 | + setup |
| 11 | +} from 'xstate'; |
| 12 | +import { reply } from '../utils'; |
| 13 | + |
| 14 | +export const DATA_VALIDATOR_COMMANDS = { |
| 15 | + VALIDATE_DATA: 'VALIDATE_DATA' as const |
| 16 | +}; |
| 17 | + |
| 18 | +export const DATA_VALIDATOR_EVENTS = { |
| 19 | + DESIGN_VALIDATION_DONE: 'DESIGN_VALIDATION_DONE' as const, |
| 20 | + DESIGN_VALIDATION_FAILED: 'DESIGN_VALIDATION_FAILED' as const |
| 21 | +}; |
| 22 | + |
| 23 | +type ValidationPayload = Record<string, unknown>; |
| 24 | +type ValidationResults = unknown; |
| 25 | +type SystemErrors = unknown; |
| 26 | + |
| 27 | +interface ValidateDataCommand extends EventObject { |
| 28 | + type: typeof DATA_VALIDATOR_COMMANDS.VALIDATE_DATA; |
| 29 | + returnAddress: string; |
| 30 | + data: { |
| 31 | + validationPayload: ValidationPayload; |
| 32 | + }; |
| 33 | +} |
| 34 | + |
| 35 | +interface ValidateActorDoneEvent extends DoneActorEvent { |
| 36 | + output: { |
| 37 | + validationResults: ValidationResults; |
| 38 | + }; |
| 39 | +} |
| 40 | + |
| 41 | +interface DataValidatedEvent extends EventObject { |
| 42 | + type: typeof DATA_VALIDATOR_EVENTS.DESIGN_VALIDATION_DONE; |
| 43 | + data: { |
| 44 | + validationPayload: ValidationPayload; |
| 45 | + validationResults: ValidationResults; |
| 46 | + }; |
| 47 | +} |
| 48 | + |
| 49 | +interface DataValidationFailedEvent extends EventObject { |
| 50 | + type: typeof DATA_VALIDATOR_EVENTS.DESIGN_VALIDATION_FAILED; |
| 51 | + data: { |
| 52 | + validationPayload: ValidationPayload; |
| 53 | + systemErrors: SystemErrors; |
| 54 | + }; |
| 55 | +} |
| 56 | + |
| 57 | +export const dataValidatorCommands = { |
| 58 | + validateData: ({ |
| 59 | + validationPayload, |
| 60 | + returnAddress |
| 61 | + }: { |
| 62 | + validationPayload: ValidationPayload; |
| 63 | + returnAddress: string; |
| 64 | + }): ValidateDataCommand => ({ |
| 65 | + type: DATA_VALIDATOR_COMMANDS.VALIDATE_DATA, |
| 66 | + returnAddress, |
| 67 | + data: { validationPayload } |
| 68 | + }) |
| 69 | +}; |
| 70 | + |
| 71 | +export const dataValidatorEvents = { |
| 72 | + dataValidated: ({ |
| 73 | + validationPayload, |
| 74 | + validationResults |
| 75 | + }: { |
| 76 | + validationPayload: ValidationPayload; |
| 77 | + validationResults: ValidationResults; |
| 78 | + }): DataValidatedEvent => ({ |
| 79 | + type: DATA_VALIDATOR_EVENTS.DESIGN_VALIDATION_DONE, |
| 80 | + data: { validationPayload, validationResults } |
| 81 | + }), |
| 82 | + |
| 83 | + dataValidationFailed: ({ |
| 84 | + validationPayload, |
| 85 | + systemErrors |
| 86 | + }: { |
| 87 | + validationPayload: ValidationPayload; |
| 88 | + systemErrors: SystemErrors; |
| 89 | + }): DataValidationFailedEvent => ({ |
| 90 | + type: DATA_VALIDATOR_EVENTS.DESIGN_VALIDATION_FAILED, |
| 91 | + data: { validationPayload, systemErrors } |
| 92 | + }) |
| 93 | +}; |
| 94 | + |
| 95 | +interface ValidationMachineContext { |
| 96 | + validationResults: ValidationResults | null; |
| 97 | + validationPayload: ValidationPayload | null; |
| 98 | + returnAddress: string | null; |
| 99 | +} |
| 100 | + |
| 101 | +interface ValidateActorInput { |
| 102 | + validationPayload: ValidationPayload; |
| 103 | + prevValidationResults: ValidationResults; |
| 104 | +} |
| 105 | + |
| 106 | +type ValidationMachineEvents = |
| 107 | + | ValidateDataCommand |
| 108 | + | DataValidatedEvent |
| 109 | + | DataValidationFailedEvent |
| 110 | + | ValidateActorDoneEvent; |
| 111 | + |
| 112 | +export const dataValidatorMachine = setup({ |
| 113 | + types: { |
| 114 | + context: {} as ValidationMachineContext, |
| 115 | + events: {} as ValidationMachineEvents |
| 116 | + }, |
| 117 | + delays: { |
| 118 | + debounceTimeout: 300 |
| 119 | + }, |
| 120 | + actions: { |
| 121 | + setReturnAddress: assign({ |
| 122 | + returnAddress: ({ event }) => (event as ValidateDataCommand).returnAddress |
| 123 | + }), |
| 124 | + setValidationPayload: assign({ |
| 125 | + validationPayload: ({ event }) => (event as ValidateDataCommand).data.validationPayload |
| 126 | + }), |
| 127 | + |
| 128 | + resetValidationPayload: assign({ |
| 129 | + validationPayload: null |
| 130 | + }), |
| 131 | + |
| 132 | + resetValidationResults: assign({ |
| 133 | + validationResults: null |
| 134 | + }), |
| 135 | + setValidationResults: assign({ |
| 136 | + validationResults: ({ event }) => (event as ValidateActorDoneEvent).output.validationResults |
| 137 | + }) |
| 138 | + }, |
| 139 | + actors: { |
| 140 | + ValidateActor: fromPromise(async ({ input }: { input: ValidateActorInput }) => { |
| 141 | + console.log('Validating data', input); |
| 142 | + throw new Error('not implemented'); |
| 143 | + }) |
| 144 | + } |
| 145 | +}).createMachine({ |
| 146 | + id: 'validationMachine', |
| 147 | + |
| 148 | + initial: 'idle', |
| 149 | + |
| 150 | + context: { |
| 151 | + validationResults: null, |
| 152 | + validationPayload: {}, //data to be used in the validation process like the design to validate |
| 153 | + returnAddress: null // the address to send the validation result to |
| 154 | + }, |
| 155 | + |
| 156 | + states: { |
| 157 | + idle: { |
| 158 | + description: |
| 159 | + 'when the machine is idle , i.e no process is going on and the machine the ready to accept new request', |
| 160 | + initial: 'waiting', |
| 161 | + on: { |
| 162 | + [DATA_VALIDATOR_COMMANDS.VALIDATE_DATA]: { |
| 163 | + target: '.debouncing', |
| 164 | + actions: ['setValidationPayload', 'setReturnAddress'] |
| 165 | + } |
| 166 | + }, |
| 167 | + states: { |
| 168 | + waiting: {}, |
| 169 | + debouncing: { |
| 170 | + after: { |
| 171 | + debounceTimeout: '#validationMachine.validatingData' |
| 172 | + } |
| 173 | + } |
| 174 | + } |
| 175 | + }, |
| 176 | + |
| 177 | + validatingData: { |
| 178 | + invoke: { |
| 179 | + src: 'ValidateActor', |
| 180 | + input: ({ context }: { context: ValidationMachineContext }) => ({ |
| 181 | + validationPayload: context.validationPayload as ValidationPayload, |
| 182 | + prevValidationResults: context.validationResults as ValidationResults |
| 183 | + }), |
| 184 | + onDone: { |
| 185 | + target: 'idle', |
| 186 | + actions: [ |
| 187 | + 'setValidationResults', |
| 188 | + reply( |
| 189 | + ({ |
| 190 | + context, |
| 191 | + event |
| 192 | + }: { |
| 193 | + context: ValidationMachineContext; |
| 194 | + event: ValidateActorDoneEvent; |
| 195 | + }) => |
| 196 | + dataValidatorEvents.dataValidated({ |
| 197 | + validationPayload: context.validationPayload as ValidationPayload, |
| 198 | + validationResults: event.output.validationResults |
| 199 | + }) |
| 200 | + ) as any |
| 201 | + ] |
| 202 | + }, |
| 203 | + onError: { |
| 204 | + target: 'idle', |
| 205 | + actions: [ |
| 206 | + reply( |
| 207 | + ({ context, event }: { context: ValidationMachineContext; event: ErrorActorEvent }) => |
| 208 | + dataValidatorEvents.dataValidationFailed({ |
| 209 | + validationPayload: context.validationPayload as ValidationPayload, |
| 210 | + systemErrors: event.error |
| 211 | + }) |
| 212 | + ) as any, |
| 213 | + ({ event }) => console.error('Failed to validate data', event), |
| 214 | + assign({ |
| 215 | + validationResults: ({ event }) => `Failed to validate data: ${event.error || ''}` |
| 216 | + }) |
| 217 | + ] |
| 218 | + } |
| 219 | + } |
| 220 | + } |
| 221 | + } |
| 222 | +}); |
| 223 | + |
| 224 | +type ValidationMachineSnapshot = SnapshotFrom<typeof dataValidatorMachine>; |
| 225 | + |
| 226 | +export const selectValidationResults = (state: ValidationMachineSnapshot) => |
| 227 | + state.context.validationResults; |
| 228 | + |
| 229 | +export const selectIsValidating = (state: ValidationMachineSnapshot) => |
| 230 | + state.matches('validatingData'); |
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