import sinon, { SinonSpy } from 'sinon'

import runnablesStore, { RunnablesStore, RootRunnable, LogProps } from '../../../src/runnables/runnables-store'
import SuiteModel, { SuiteProps } from '../../../src/runnables/suite-model'
import { AppState } from '../../../src/lib/app-state'
import { Scroller } from '../../../src/lib/scroller'
import TestModel, { TestProps } from '../../../src/test/test-model'
import { AgentProps } from '../../../src/agents/agent-model'
import { CommandProps } from '../../../src/commands/command-model'
import { RouteProps } from '../../../src/routes/route-model'
import { HookProps } from '../../../src/hooks/hook-model'

const appStateStub = () => {
  return {
    isRunning: true,
    autoScrollingEnabled: true,
  } as AppState
}

type ScrollerStub = Scroller & {
  setScrollTop: SinonSpy
  scrollToEnd: SinonSpy
}

const scrollerStub = () => {
  return {
    setScrollTop: sinon.spy(),
    scrollToEnd: sinon.spy(),
  } as ScrollerStub
}

const createHook = (hookId: string) => {
  return { hookId, hookName: 'before each' } as HookProps
}
const createTest = (id: string) => {
  return { id, title: `test ${id}`, hooks: [], state: 'processing', currentRetry: 0 } as TestProps
}
const createSuite = (id: string, tests: Array<TestProps>, suites: Array<SuiteProps>) => {
  return { id, title: `suite ${id}`, tests, suites, hooks: [] } as SuiteProps
}
const createAgent = (id: number, testId: string) => {
  return { id, testId, instrument: 'agent', callCount: 0, testCurrentRetry: 0, functionName: 'foo' } as AgentProps
}
const createCommand = (id: number, testId: string, hookId?: string) => {
  return { id, testId, instrument: 'command', hookId } as CommandProps
}
const createRoute = (id: number, testId: string) => {
  return { id, testId, instrument: 'route' } as RouteProps
}

const createRootRunnable = () => {
  return {
    tests: [createTest('1')],
    suites: [
      createSuite('1', [createTest('2'), createTest('3')], [createSuite('3', [createTest('4')], []), createSuite('4', [createTest('5')], [])]),
      createSuite('2', [createTest('6')], []),
    ],
  } as RootRunnable
}

describe('runnables store', () => {
  let instance: RunnablesStore
  let appState: AppState
  let scroller: Scroller

  beforeEach(() => {
    // @ts-ignore
    global.requestAnimationFrame = (cb: FrameRequestCallback) => {
      // @ts-ignore
      return cb()
    }

    appState = appStateStub()
    scroller = scrollerStub()
    instance = new RunnablesStore({ appState, scroller })
  })

  it('exports singleton by default', () => {
    expect(runnablesStore).to.be.instanceof(RunnablesStore)
  })

  context('#setRunnables', () => {
    it('creates nested array of runnables', () => {
      instance.setRunnables(createRootRunnable())
      expect(instance.runnables.length).to.equal(3)
      expect(instance.runnables[0].title).to.equal('test 1')
      expect((instance.runnables[1] as SuiteModel).children.length).to.equal(4)
      expect((instance.runnables[2] as SuiteModel).children.length).to.equal(1)
    })

    it('sets the appropriate types', () => {
      instance.setRunnables(createRootRunnable())
      expect(instance.runnables[0].type).to.equal('test')
      expect(instance.runnables[1].type).to.equal('suite')
    })

    it('adds logs to tests when specified', () => {
      const rootRunnable = createRootRunnable()

      rootRunnable.tests![0].agents = [createAgent(1, '1'), createAgent(2, '1'), createAgent(3, '1')]
      rootRunnable.tests![0].commands = [createCommand(1, '1', 'h1')]
      rootRunnable.tests![0].routes = [createRoute(1, '1'), createRoute(2, '1')]
      rootRunnable.tests![0].hooks = [createHook('h1')]
      instance.setRunnables(rootRunnable)
      expect((instance.runnables[0] as TestModel).lastAttempt.agents.length).to.equal(3)
      expect((instance.runnables[0] as TestModel).lastAttempt.commands.length).to.equal(1)
      expect((instance.runnables[0] as TestModel).lastAttempt.routes.length).to.equal(2)
    })

    it('sets the appropriate nesting levels', () => {
      instance.setRunnables(createRootRunnable())
      expect(instance.runnables[0].level).to.equal(0)
      expect(instance.runnables[1].level).to.equal(0)
      expect((instance.runnables[1] as SuiteModel).children[0].level).to.equal(1)
      expect(((instance.runnables[1] as SuiteModel).children[2] as SuiteModel).children[0].level).to.equal(2)
    })

    it('merges down hooks', () => {
      const rootRunnable = createRootRunnable()

      rootRunnable.suites![0].hooks = [createHook('h1'), createHook('h2')]
      rootRunnable.suites![0].suites[0].hooks = [createHook('h3')]
      rootRunnable.suites![0].suites[0].tests[0].hooks = [createHook('h4')]
      instance.setRunnables(rootRunnable)
      expect(instance.runnables[0].hooks.length).to.equal(2)
      expect(instance.runnables[1].hooks.length).to.equal(2)
      expect((instance.runnables[1] as SuiteModel).children[2].hooks.length).to.equal(3)
      expect(((instance.runnables[1] as SuiteModel).children[2] as SuiteModel).children[0].hooks.length).to.equal(6)
    })

    it('sets .isReady flag', () => {
      instance.setRunnables({})
      expect(instance.isReady).to.be.true
    })

    it('sets .hasTests flag to true if there are tests', () => {
      instance.setRunnables(createRootRunnable())
      expect(instance.hasTests).to.be.true
    })

    it('sets .hasTests flag to false if there are no tests', () => {
      instance.setRunnables({ tests: [], suites: [createSuite('1', [], []), createSuite('2', [], [])] })
      expect(instance.hasTests).to.be.false
    })

    it('sets .hasSingleTest flag to true if there is only one test', () => {
      instance.setRunnables({ tests: [], suites: [createSuite('1', [], []), createSuite('2', [createTest('1')], [])] })
      expect(instance.hasSingleTest).to.be.true
    })

    it('sets .hasSingleTest flag to false if there are no tests', () => {
      instance.setRunnables({ tests: [], suites: [createSuite('1', [], []), createSuite('2', [], [])] })
      expect(instance.hasSingleTest).to.be.false
    })

    it('sets .hasSingleTest flag to false if there are multiple tests', () => {
      instance.setRunnables(createRootRunnable())
      expect(instance.hasSingleTest).to.be.false
    })

    it('sets scrollTop when app is running and initial scrollTop has been set', () => {
      instance.setInitialScrollTop(234)
      instance.setRunnables({})
      expect(scroller.setScrollTop).to.have.been.calledWith(234)
    })

    it('does nothing when app is running and initial scrollTop has not been set', () => {
      instance.setRunnables({})
      expect(scroller.setScrollTop).not.to.have.been.called
    })

    it('sets scrolls to end when app is not running and auto-scrolling is enabled', () => {
      appState.isRunning = false
      instance.setRunnables({})
      expect(scroller.scrollToEnd).to.have.been.called
    })

    it('does nothing when app is not running and auto-scrolling is disabled', () => {
      appState.isRunning = false
      appState.autoScrollingEnabled = false
      instance.setRunnables({})
      expect(scroller.scrollToEnd).not.to.have.been.called
    })

    it('does nothing when app is stopped and auto-scrolling is enabled', () => {
      appState.isRunning = false
      appState.isStopped = true
      instance.setRunnables({})
      expect(scroller.scrollToEnd).not.to.have.been.called
    })
  })

  context('#runnableStarted', () => {
    it('starts the test with the given id', () => {
      instance.setRunnables({ tests: [createTest('1')], suites: [] })
      instance.runnableStarted({ id: '1' } as TestProps)
      expect((instance.runnables[0] as TestModel).isActive).to.be.true
    })
  })

  context('#runnableFinished', () => {
    it('finishes the test with the given id', () => {
      instance.setRunnables({ tests: [createTest('1')], suites: [] })
      instance.runnableStarted({ id: '1' } as TestProps)
      instance.runnableFinished({ id: '1' } as TestProps)
      expect((instance.runnables[0] as TestModel).isActive).to.be.false
    })
  })

  context('#testByid', () => {
    it('returns the test with the given id', () => {
      instance.setRunnables({ tests: [createTest('1'), createTest('3')], suites: [] })
      expect(instance.testById('3').title).to.be.equal('test 3')
    })
  })

  context('#addLog', () => {
    it('adds the log', () => {
      const test = createTest('1')

      test.hooks = [createHook('h1')]

      instance.setRunnables({ tests: [test] })

      instance.addLog(createCommand(1, '1', 'h1'))
      expect(instance.testById('1').lastAttempt.commands.length).to.equal(1)

      instance.addLog(createCommand(2, '1', 'h1'))
      expect(instance.testById('1').lastAttempt.commands.length).to.equal(2)
    })
  })

  context('#updateLog', () => {
    it('updates the log', () => {
      const test = createTest('1')

      test.hooks = [createHook('h1')]

      instance.setRunnables({ tests: [test] })

      instance.addLog(createCommand(1, '1', 'h1'))
      instance.updateLog({ id: 1, testId: '1', name: 'new name' } as LogProps)
      expect(instance.testById('1').lastAttempt.commands[0].name).to.equal('new name')
    })
  })

  context('#removeLog', () => {
    it('removes the log', () => {
      const test = createTest('1')

      test.hooks = [createHook('h1')]

      instance.setRunnables({ tests: [test] })

      instance.addLog(createCommand(1, '1', 'h1'))
      instance.addLog(createCommand(2, '1', 'h1'))
      expect(instance.testById('1').lastAttempt.commands.length).to.equal(2)

      instance.removeLog(createCommand(1, '1', 'h1'))
      expect(instance.testById('1').lastAttempt.commands.length).to.equal(1)
      expect(instance.testById('1').lastAttempt.commands[0].id).to.equal(2)
    })
  })

  context('#setRunningSpec', () => {
    it('sets the current runnable as the path passed', () => {
      instance.setRunnables({ tests: [createTest('1')] })
      instance.setRunningSpec('specPath')
      expect(instance.runningSpec).to.equal('specPath')
    })

    it('add the previous path to the spec history', () => {
      instance.setRunnables({ tests: [createTest('1')] })
      instance.setRunningSpec('previousSpecPath')
      instance.setRunningSpec('nextSpecPath')
      expect(instance.runningSpec).to.equal('nextSpecPath')
      expect(instance.runnablesHistory['previousSpecPath']).not.to.be.undefined
    })
  })

  context('#reset', () => {
    it('resets flags to default values', () => {
      instance.setRunnables({ tests: [createTest('1')] })
      instance.attemptingShowSnapshot = true
      instance.showingSnapshot = true
      instance.reset()

      expect(instance.hasSingleTest).to.be.false
      expect(instance.hasTests).to.be.false
      expect(instance.isReady).to.be.false
      expect(instance.attemptingShowSnapshot).to.be.false
      expect(instance.showingSnapshot).to.be.false
    })

    it('resets runnables', () => {
      instance.setRunnables({ tests: [createTest('1')] })
      instance.reset()
      expect(instance.runnables.length).to.equal(0)
    })

    it('resets tests', () => {
      instance.setRunnables({ tests: [createTest('1')] })
      instance.reset()
      expect(instance.testById('1')).to.be.undefined
    })

    it('resets runnablesHistory', () => {
      instance.setRunnables({ tests: [createTest('1')] })
      instance.setRunningSpec('previous')
      instance.reset()
      expect(instance.runnablesHistory).to.be.empty
    })
  })
})
