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

machine.js

// Available variables:
// - Machine
// - interpret
// - assign
// - send
// - sendParent
// - spawn
// - raise
// - actions
// - XState (all XState exports)

const MAX_RECURSION = 2

const rageAgainstTheStateMachine = ctx =>
  console.error(`Fuck you I won't build what you tell me`)

const assignMutatedNodes = assign((ctx, event) => {
  return {
    nodesMutatedDuringQueryRun:
      ctx.nodesMutatedDuringQueryRun || event.nodesMutated,
  }
})

const buildMachine = Machine({
  id: `build`,
  initial: `bootstrapping`,
  context: {
    recursionCount: 0,
    nodesMutatedDuringQueryRun: false,
    firstRun: true,
  },
  states: {
    bootstrapping: {
      on: {
        DONE: {
          target: `customizingSchema`,
        },
        ERROR: {
          target: `failed`,
        },
      },
    },
    customizingSchema: {
      on: {
        COMPLETE: {
          target: `sourcingNodes`,
        },
        ERROR: {
          target: `idle`,
        },
      },
    },
    sourcingNodes: {
      on: {
        COMPLETE: {
          target: `inferringSchema`,
        },
        ERROR: {
          target: `idle`,
        },
      },
    },
    inferringSchema: {
      on: {
        COMPLETE: {
          target: `runningCreatePages`,
          actions: assignMutatedNodes,
        },
        ERROR: {
          target: `idle`,
        },
      },
    },
    runningCreatePages: {
      on: {
        COMPLETE: [
          {
            target: `runningCreatePagesStatefully`,
            cond: ctx => ctx.firstRun,
            actions: assign((ctx, event) => {
              return {
                nodesMutatedDuringQueryRun:
                  ctx.nodesMutatedDuringQueryRun || event.nodesMutated,
                firstRun: false,
              }
            }),
          },
          {
            target: `runningStaticQueries`,
            actions: assignMutatedNodes,
          },
        ],
        ERROR: {
          target: `idle`,
        },
      },
    },
    runningCreatePagesStatefully: {
      on: {
        COMPLETE: {
          target: `runningStaticQueries`,
          actions: assignMutatedNodes,
        },
        ERROR: {
          target: `idle`,
        },
      },
    },
    runningStaticQueries: {
      on: {
        COMPLETE: {
          target: `runningPageQueries`,
          actions: assignMutatedNodes,
        },
        ERROR: {
          target: `idle`,
        },
      },
    },
    runningPageQueries: {
      on: {
        COMPLETE: [
          {
            target: `writingArtifacts`,
            cond: (ctx, event) =>
              !(ctx.nodesMutatedDuringQueryRun || event.nodesMutated),
          },
          {
            actions: assign(ctx => {
              return {
                recursionCount: ctx.recursionCount + 1,
                nodesMutatedDuringQueryRun: false, // Resetting
              }
            }),
            target: `customizingSchema`,
            cond: (ctx, event) => ctx.recursionCount < MAX_RECURSION,
          },
          {
            invoke: {
              src: `rageAgainstTheStateMachine`,
            },
            actions: assign(ctx => {
              return {
                recursionCount: 0,
                nodesMutatedDuringQueryRun: false, // Resetting
              }
            }),
            target: `idle`,
          },
        ],
        ERROR: {
          target: `idle`,
        },
      },
    },
    writingArtifacts: {
      on: {
        SUCCESS: {
          target: `idle`,
        },
        ERROR: {
          target: `idle`,
        },
      },
    },
    transactionRunning: {
      on: {
        COMMIT_TRANSACTION: {
          target: `customizingSchema`,
        },
        ERROR: {
          target: `idle`,
        },
      },
    },
    batchingPageMutations: {
      on: {
        COMMIT_BATCH: {
          target: `runningStaticQueries`,
        },
        ERROR: {
          target: `idle`,
        },
      },
    },
    idle: {
      on: {
        WEBHOOK_RECEIVED: {
          target: `transactionRunning`,
        },
        ENQUEUE_NODE_MUTATION: {
          target: `transactionRunning`,
        },
        ENQUEUE_PAGE_MUTATION: {
          target: `batchingPageMutations`,
        },
        CREATE_TRANSACTION: {
          target: `transactionRunning`,
        },
      },
    },
    failed: {
      final: true,
    },
  },
})