import e from '../lib/eltro.mjs'
import { stub } from '../lib/sinon.mjs'
import assert from '../lib/assert.mjs'

function CreateT() {
  const t = new e.Eltro()
  t.reporter = 'test'
  t.logger = {
    log: stub()
  }
  return t
}

e.describe('#before()', function() {
  e.test('should support functions in describe group', async function() {
    let assertRan = 0
    let firstBefore = 0
    let secondBefore = 0
    let thirdBefore = 0
    const t = CreateT()
    t.begin()
    t.describe('', function() {
      t.before(function() {
        firstBefore = assertRan
      })
  
      t.describe('', function() {
        t.before(function() {
          secondBefore = assertRan
        })
  
        t.test('', function() { assertRan++ })
        t.test('', function() { assertRan++ })
        t.test('', function() { assertRan++ })
      })
  
      t.describe('', function() {      
        t.before(function() {
          thirdBefore = assertRan
        })
  
        t.test('', function() { assertRan++ })
      })
  
      t.test('', function() { assertRan++ })
    })
    let stats = await t.run()
    assert.strictEqual(t.failedTests.length, 0)
    assert.strictEqual(assertRan, 5)
    assert.strictEqual(stats.passed, 5)
    assert.strictEqual(firstBefore, 0)
    assert.strictEqual(secondBefore, 1)
    assert.strictEqual(thirdBefore, 4)
  })
})

e.describe('#beforeEach()', function() {
  e.test('should support functions in describe group and run before each test and group', async function() {
    const t = CreateT()
    t.begin()
    t.describe('', function() {
      let outside = 0
      t.beforeEach(function() {
        outside++
      })
  
      t.describe('', function() {
        t.before(function() {
          assert.strictEqual(outside, 2)
        })
        let inside = 0
        t.beforeEach(function() {
          inside++
        })
  
        t.test('', function() { assert.strictEqual(inside, 1) })
        t.test('', function() { assert.strictEqual(inside, 2) })
        t.test('', function() { assert.strictEqual(inside, 3) })
      })
  
      t.describe('', function() {
        t.before(function() {
          assert.strictEqual(outside, 3)
        })

        let insideSecond = 0    
        t.beforeEach(function() {
          assert.strictEqual(insideSecond, 0)
          insideSecond++
        })
  
        t.test('', function() { assert.strictEqual(insideSecond, 1) })
      })
  
      t.test('', function() { assert.strictEqual(outside, 1) })
    })
    let stats = await t.run()
    assert.strictEqual(t.failedTests.length, 0)
    assert.strictEqual(stats.passed, 5)
    assert.strictEqual(stats.failed, 0)
    assert.strictEqual(stats.skipped, 0)
  })

  e.test('should be able to keep track of every error that occurs', async function() {
    let counter = 0
    const t = CreateT()
    t.begin()
    t.describe('BBBB', function() {
      t.beforeEach(function() {
        throw new Error(`Counter at ${++counter}`)
      })
  
      t.describe('CCCC', function() {
        t.test('', function() { })
      })
  
      t.describe('DDDD', function() {
        t.test('', function() { })
      })
  
      t.test('AAAA', function() { })
    })
    let stats = await t.run()
    assert.strictEqual(t.failedTests.length, 3)
    assert.strictEqual(t.logger.log.callCount, 3)
    assert.match(t.logger.log.firstCall[1].message, /1/)
    assert.match(t.logger.log.firstCall[0], /before each/i)
    assert.match(t.logger.log.firstCall[0], /AAAA/)
    assert.match(t.logger.log.firstCall[0], /BBBB/)
    assert.match(t.logger.log.secondCall[1].message, /2/)
    assert.match(t.logger.log.secondCall[0], /before each/i)
    assert.match(t.logger.log.secondCall[0], /CCCC/)
    assert.match(t.logger.log.secondCall[0], /BBBB/)
    assert.match(t.logger.log.thirdCall[1].message, /3/)
    assert.match(t.logger.log.thirdCall[0], /before each/i)
    assert.match(t.logger.log.thirdCall[0], /DDDD/)
    assert.match(t.logger.log.thirdCall[0], /BBBB/)
  })
})

e.describe('#after()', function() {
  e.test('should support functions in describe group', async function() {
    let assertRan = 0
    let firstAfter = 0
    let secondAfter = 0
    let thirdAfter = 0
    const t = CreateT()
    t.begin()
    t.describe('', function() {
      t.after(function() {
        firstAfter = assertRan
      })
  
      t.describe('', function() {
        t.after(function() {
          secondAfter = assertRan
        })
  
        t.test('', function() { assertRan++ })
        t.test('', function() { assertRan++ })
        t.test('', function() { assertRan++ })
      })
  
      t.describe('', function() {      
        t.after(function() {
          thirdAfter = assertRan
        })
  
        t.test('', function() { assertRan++ })
      })
  
      t.test('', function() { assertRan++ })
    })
    let stats = await t.run()
    assert.strictEqual(t.failedTests.length, 0)
    assert.strictEqual(stats.passed, 5)
    assert.strictEqual(assertRan, 5)
    assert.strictEqual(firstAfter, 5)
    assert.strictEqual(secondAfter, 4)
    assert.strictEqual(thirdAfter, 5)
  })
})

e.describe('#afterEach()', function() {
  e.test('should support functions in describe group', async function() {
    const t = CreateT()
    t.begin()
    t.describe('', function() {
      let outside = 0
      t.afterEach(function() {
        outside++
      })
  
      t.describe('', function() {
        t.before(function() { assert.strictEqual(outside, 1) })

        let inside = 0
        t.afterEach(function() {
          inside++
        })
  
        t.test('', function() { assert.strictEqual(inside, 0) })
        t.test('', function() { assert.strictEqual(inside, 1) })
        t.test('', function() { assert.strictEqual(inside, 2) })

        t.after(function() { assert.strictEqual(inside, 3) })
      })
  
      t.describe('', function() {   
        t.before(function() { assert.strictEqual(outside, 2) })

        let inside = 0   
        t.afterEach(function() {
          inside++
        })
  
        t.test('', function() { assert.strictEqual(inside, 0) })

        t.after(function() { assert.strictEqual(inside, 1) })
      })
  
      t.test('', function() { assert.strictEqual(outside, 0) })

      t.after(function() { assert.strictEqual(outside, 3) })
    })
    let stats = await t.run()
    assert.strictEqual(t.failedTests.length, 0)
    assert.strictEqual(stats.passed, 5)
    assert.strictEqual(stats.failed, 0)
    assert.strictEqual(stats.skipped, 0)
  })

  e.test('should be able to keep track of every error that occurs', async function() {
    let counter = 0
    const t = CreateT()
    t.begin()
    t.describe('YYYY', function() {
      t.afterEach(function() {
        throw new Error(`Counter at ${++counter}`)
      })
  
      t.describe('HHHH', function() {
        t.test('', function() { })
      })
  
      t.describe('JJJJ', function() {
        t.test('', function() { })
      })
  
      t.test('AAAA', function() { })
      t.test('BBBB', function() { })
      t.test('CCCC', function() { })
    })
    let stats = await t.run()
    assert.strictEqual(t.failedTests.length, 5)
    assert.strictEqual(t.logger.log.callCount, 5)
    assert.match(t.logger.log.getCall(0)[1].message, /1/)
    assert.match(t.logger.log.getCall(0)[0], /after each/i)
    assert.match(t.logger.log.getCall(0)[0], /AAAA/)
    assert.match(t.logger.log.getCall(0)[0], /YYYY/)
    assert.match(t.logger.log.getCall(1)[1].message, /2/)
    assert.match(t.logger.log.getCall(1)[0], /after each/i)
    assert.match(t.logger.log.getCall(1)[0], /BBBB/)
    assert.match(t.logger.log.getCall(1)[0], /YYYY/)
    assert.match(t.logger.log.getCall(2)[1].message, /3/)
    assert.match(t.logger.log.getCall(2)[0], /after each/i)
    assert.match(t.logger.log.getCall(2)[0], /CCCC/)
    assert.match(t.logger.log.getCall(2)[0], /YYYY/)
    assert.match(t.logger.log.getCall(3)[1].message, /4/)
    assert.match(t.logger.log.getCall(3)[0], /after each/i)
    assert.match(t.logger.log.getCall(3)[0], /HHHH/)
    assert.match(t.logger.log.getCall(3)[0], /YYYY/)
    assert.match(t.logger.log.getCall(4)[1].message, /5/)
    assert.match(t.logger.log.getCall(4)[0], /after each/i)
    assert.match(t.logger.log.getCall(4)[0], /JJJJ/)
    assert.match(t.logger.log.getCall(4)[0], /YYYY/)
  })
})

let commonBeforeTests = ['before', 'beforeEach']
commonBeforeTests.forEach(function(before) {
  e.describe(`#${before}()`, function() {
    e.test('should not be possible outside of groups', async function() {
      const t = CreateT()
      t.begin()
      assert.throws(function() {
        t[before](function() {})
      }, function(err) {
        assert.match(err.message, /group/i)
        return true
      })
    })

    e.test('should support functions in describe timing out', async function() {
      let assertRan = 0
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[before](function(cb) { }).timeout(50)
        t.test('', function() { assertRan++ })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.ok(t.failedTests[0].error)
      assert.match(t.failedTests[0].error.message, /50ms/)
      assert.strictEqual(assertRan, 0)
    })
    
    e.test('should support functions in describe late timing out', async function() {
      let assertRan = 0
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[before](function(cb) {
          setTimeout(cb, 100)
        }).timeout(50)
        t.test('', function() { assertRan++ })
      })
      t.describe('', function() {
        t.test('', function(cb) { assertRan++; setTimeout(cb, 25) })
        t.test('', function(cb) { assertRan++; setTimeout(cb, 25) })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.ok(t.failedTests[0].error)
      assert.match(t.failedTests[0].error.message, /50ms/)
      assert.strictEqual(assertRan, 2)
    })
    
    e.test('should support functions in describe timing out in front', async function() {
      let assertRan = 0
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t.timeout(25)[before](function(cb) { setTimeout(cb, 50) })
        t.test('', function() { assertRan++ })
      })
      t.describe('', function() {
        t.test('', function(cb) { assertRan++; setTimeout(cb, 25) })
        t.test('', function(cb) { assertRan++; setTimeout(cb, 25) })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.ok(t.failedTests[0].error)
      assert.match(t.failedTests[0].error.message, /25ms/)
      assert.strictEqual(assertRan, 2)
    })
    
    e.test('should support functions in describe being promised', async function() {
      let assertIsTrue = false
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[before](function() {
          return new Promise(function(res) {
            assertIsTrue = true
            res()
          })
        })
        t.test('', function() { })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 0)
      assert.strictEqual(assertIsTrue, true)
    })
    
    e.test('should support functions in describe with callback', async function() {
      let assertIsTrue = false
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[before](function(cb) {
          setTimeout(function() {
            assertIsTrue = true
            cb()
          }, 25)
        })
        t.test('', function() { })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 0)
      assert.strictEqual(assertIsTrue, true)
    })
    
    e.test('should support functions in describe with directly thrown errors', async function() {
      const assertError = new Error()
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[before](function() {
          throw assertError
        })
        t.test('', function() { })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.strictEqual(t.failedTests[0].error, assertError)
    })
    
    e.test('should support functions in describe with rejected promises', async function() {
      const assertError = new Error()
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[before](function() {
          return new Promise(function(res, rej) {
            rej(assertError)
          })
        })
        t.test('', function() {})
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.strictEqual(t.failedTests[0].error, assertError)
    })
    
    e.test('should support functions in describe with callback rejected', async function() {
      const assertError = new Error()
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[before](function(cb) { cb(assertError) })
        t.test('', function() { })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.strictEqual(t.failedTests[0].error, assertError)
    })
  })
})

let commonAfterTests = ['after', 'afterEach']
commonAfterTests.forEach(function(after) {
  e.describe(`#${after}()`, function() {
    e.test('should not be possible outside of groups', async function() {
      const t = CreateT()
      t.begin()
      assert.throws(function() {
        t[after](function() {})
      }, function(err) {
        assert.match(err.message, /group/i)
        return true
      })
    })

    e.test('should support functions in describe, timing out', async function() {
      let assertRan = 0
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[after](function(cb) { }).timeout(50)
        t.test('', function() { assertRan++ })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.ok(t.failedTests[0].error)
      assert.match(t.failedTests[0].error.message, /50ms/)
      assert.strictEqual(assertRan, 1)
    })
    
    e.test('should support functions in describe, late timing out', async function() {
      let assertRan = 0
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[after](function(cb) {
          setTimeout(cb, 100)
        }).timeout(50)
        t.test('', function() { assertRan++ })
      })
      t.describe('', function() {
        t.test('', function(cb) { assertRan++; setTimeout(cb, 25) })
        t.test('', function(cb) { assertRan++; setTimeout(cb, 25) })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.ok(t.failedTests[0].error)
      assert.match(t.failedTests[0].error.message, /50ms/)
      assert.strictEqual(assertRan, 3)
    })
    
    e.test('should support functions in describe, timing out in front', async function() {
      let assertRan = 0
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t.timeout(25)[after](function(cb) { setTimeout(cb, 50) })
        t.test('', function() { assertRan++ })
      })
      t.describe('', function() {
        t.test('', function(cb) { assertRan++; setTimeout(cb, 25) })
        t.test('', function(cb) { assertRan++; setTimeout(cb, 25) })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.ok(t.failedTests[0].error)
      assert.match(t.failedTests[0].error.message, /25ms/)
      assert.strictEqual(assertRan, 3)
    })
    
    
    e.test('should support functions in describe, being promised', async function() {
      let assertIsTrue = false
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[after](function() {
          return new Promise(function(res) {
            assertIsTrue = true
            res()
          })
        })
        t.test('', function() { })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 0)
      assert.strictEqual(assertIsTrue, true)
    })
    
    e.test('should support functions in describe, support callback', async function() {
      let assertIsTrue = false
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[after](function(cb) {
          setTimeout(function() {
            assertIsTrue = true
            cb()
          }, 25)
        })
        t.test('', function() { })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 0)
      assert.strictEqual(assertIsTrue, true)
    })
    
    e.test('should support functions in describe, support directly thrown errors', async function() {
      const assertError = new Error()
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[after](function() {
          throw assertError
        })
        t.test('', function() { })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.strictEqual(t.failedTests[0].error, assertError)
    })
    
    e.test('should support functions in describe, support rejected promises', async function() {
      const assertError = new Error()
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[after](function() {
          return new Promise(function(res, rej) {
            rej(assertError)
          })
        })
        t.test('', function() {})
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.strictEqual(t.failedTests[0].error, assertError)
    })
    
    e.test('should support functions in describe, support callback rejected', async function() {
      const assertError = new Error()
      const t = CreateT()
      t.begin()
      t.describe('', function() {
        t[after](function(cb) { cb(assertError) })
        t.test('', function() { })
      })
      await t.run()
      assert.strictEqual(t.failedTests.length, 1)
      assert.strictEqual(t.failedTests[0].error, assertError)
    })
  })
})