// The EDIT screen is bounded by DC_MAXOBS_WEBEDIT rows and DC_MAXCELLS_WEBEDIT
// cells (rows x columns), whichever is reached first, and the VIEW screen caps
// at DC_MAXOBS_WEBVIEW rows.
//
// A selection over an EDIT limit is served TRUNCATED - the grid carries the
// first rows that fit, and a warning triangle against the table name says why.
// This spec pins those limits against the mock, which mirrors the shipped
// defaults (250 rows / 200000 cells for EDIT, 2000 rows for VIEW).  It uses
// two existing fixtures rather than new ones:
//   MPE_X_SEARCH - 1000 rows x 9 cols, so it trips the ROW limit
//   MPE_X_WIDE   - 200 rows x 1001 cols (200,200 cells), under the row limit
//                  but over the CELL limit, so the row cap is 199
export {}

const hostUrl = Cypress.env('hosturl')
const appLocation = Cypress.env('appLocation')
const longerCommandTimeout = Cypress.env('longerCommandTimeout')
const serverType = Cypress.env('serverType')
const libraryToOpenIncludes = Cypress.env(`libraryToOpenIncludes_${serverType}`)

context('EDIT row and cell limits, VIEW row limit: ', function () {
  this.beforeAll(() => {
    cy.visit(`${hostUrl}/SASLogon/logout`)
    // forceLicenceKey=true: applies a valid licence rather than relying on an
    // earlier spec in the run having done so (see commands.ts).
    cy.loginAndUpdateValidKey(true)
  })

  this.beforeEach(() => {
    cy.visit(hostUrl + appLocation)
    visitPage('home')
    visitPage('view/data')
  })

  it('1 | VIEW renders up to the raised row cap, past the old 500', () => {
    openTableFromTree(libraryToOpenIncludes, 'mpe_x_search')

    // Neither the header nor the cell text can pin the cap: the header reports
    // the table's true row count whether or not the grid is capped, and the
    // fixture's own numeric columns carry values above 1500 (DEPTH_M reaches
    // 4293, SAMPLE_COUNT 4210), so a text match can hit fixture data.
    //
    // The PK can pin it.  The first td of a .ht_master row is the PK - the row
    // header, where present, is a th - and MPE_X_SEARCH holds PK 1001-2000, so
    // the range check below is what stops a mis-selected column passing.  With
    // the old 500 row cap the grid stopped at PK 1500, so a rendered PK above
    // 1500 can only appear if the cap was raised.
    scrollGridToBottom()
    cy.get('#hotTable .ht_master .htCore tbody tr', {
      timeout: longerCommandTimeout
    }).should(($rows) => {
      const pks = $rows
        .toArray()
        .map((row) => row.querySelectorAll('td')[0])
        .filter((td) => !!td)
        .map((td) => parseInt((td.textContent || '').trim(), 10))
        .filter((pk) => !isNaN(pk))

      expect(pks.length).to.be.greaterThan(0)
      pks.forEach((pk) => expect(pk).to.be.within(1001, 2000))
      expect(Math.max(...pks)).to.be.greaterThan(1500)
    })
  })

  it('2 | EDIT serves a table over the row limit, truncated, with a warning', () => {
    openTableFromTree(libraryToOpenIncludes, 'mpe_x_search')
    openEdit()

    // 1000 rows x 9 columns is over the 250 row limit, so the grid carries the
    // first 250 rows and the header says how many it is showing.
    cy.get('.editor-title', { timeout: longerCommandTimeout }).should(
      'contain.text',
      '250 rows'
    )
    cy.get('#hotTable .ht_master .htCore tbody tr', {
      timeout: longerCommandTimeout
    }).should('have.length.at.least', 1)

    cy.get('.truncation-warning', { timeout: longerCommandTimeout })
      .should('be.visible')
      .realHover()
    cy.get('.editor-title clr-tooltip-content', {
      timeout: longerCommandTimeout
    })
      .should('be.visible')
      .should('contain.text', 'DC_MAXOBS_WEBEDIT')
      .should(($el) => expect($el.css('opacity')).to.eq('1'))
  })

  it('3 | EDIT serves a table over the cell limit, truncated, with a warning', () => {
    openTableFromTree(libraryToOpenIncludes, 'mpe_x_wide')
    openEdit()

    // 200 rows x 1001 stored columns = 200,200 cells, over the 200,000 cell
    // limit, while the row count is under the 250 row limit - so the cell
    // limit sets the cap: floor(200000 / 1001) = 199 rows.
    cy.get('.editor-title', { timeout: longerCommandTimeout }).should(
      'contain.text',
      '199 rows'
    )
    cy.get('.truncation-warning', { timeout: longerCommandTimeout })
      .should('be.visible')
      .realHover()
    cy.get('.editor-title clr-tooltip-content', {
      timeout: longerCommandTimeout
    })
      .should('be.visible')
      .should('contain.text', 'DC_MAXCELLS_WEBEDIT')
      .should(($el) => expect($el.css('opacity')).to.eq('1'))
  })

  it('4 | the EDIT limits follow MPE_CONFIG, not the shipped defaults', () => {
    // Two things at once.  The seeded config carries the shipped defaults (250
    // rows / 200000 cells), which are the numbers the mock used to hard-code -
    // so nothing above would notice if the mock stopped reading MPE_CONFIG at
    // all.  And MPE_CONFIG lives in the control library, so reading it from the
    // table's own library would fail for this table in particular.
    //
    // The cell limit is the one to move: 7 rows x 17 columns is 119 cells, so
    // at 110 the TESTDATA.MPE_X_NEW edit must be truncated to
    // floor(110 / 17) = 6 rows, where a hard-coded 200000 - or a config read
    // that fails and falls back to it - lets it through.  110 is still above
    // MPE_CONFIG's own 6 x 17 = 102, so the option can be put back afterwards.
    setConfigValue('DC_MAXCELLS_WEBEDIT', '110', () => {
      visitPage('view/data/TESTDATA.MPE_X_NEW')
      closeAbortModalIfPresent()
      openEdit()

      cy.get('.editor-title', { timeout: longerCommandTimeout }).should(
        'contain.text',
        '6 rows'
      )
      cy.get('.truncation-warning', { timeout: longerCommandTimeout })
        .should('be.visible')
        .realHover()
      cy.get('.editor-title clr-tooltip-content', {
        timeout: longerCommandTimeout
      })
        .should('be.visible')
        .should('contain.text', 'DC_MAXCELLS_WEBEDIT')
        .should(($el) => expect($el.css('opacity')).to.eq('1'))
    })

    // Put the option back, so the rest of the estate sees the shipped default.
    setConfigValue('DC_MAXCELLS_WEBEDIT', '200000', () => {
      visitPage('view/data/TESTDATA.MPE_X_NEW')
      closeAbortModalIfPresent()
      openEdit()

      // 119 cells under a 200000 cell limit: all 7 rows load, no warning.
      cy.get('.editor-title', { timeout: longerCommandTimeout }).should(
        'contain.text',
        '7 rows'
      )
      cy.get('.truncation-warning').should('not.exist')
    })
  })

  it('5 | the warning says to filter, and filtering narrows the grid', () => {
    openTableFromTree(libraryToOpenIncludes, 'mpe_x_search')
    openEdit()

    cy.get('.truncation-warning', { timeout: longerCommandTimeout })
      .should('be.visible')
      .realHover()
    cy.get('.editor-title clr-tooltip-content', {
      timeout: longerCommandTimeout
    })
      .should('be.visible')
      .should('contain.text', 'Filter the table to work with the rest')
      .should(($el) => expect($el.css('opacity')).to.eq('1'))

    // The advice has to be actionable: the picker must offer the table's
    // columns and the filter must reload the grid.
    openFilterPopup()

    filterVariables().should(($options) => {
      const names = $options
        .toArray()
        .map((o) => (o.textContent || '').trim())
        .filter((n) => n.length > 0)

      expect(names, 'the picker offers the table columns').to.include.members([
        'PRIMARY_KEY_FIELD',
        'SITE_NAME',
        'VESSEL',
        'SAMPLE_COUNT',
        'DEPTH_M',
        'SPECIES',
        'CRUISE_DATE',
        'EXPEDITION_ID',
        'NOTES'
      ])
    })

    setFilterVariable('SITE_NAME')
    // 100 of the 1000 rows: under the limit, so nothing is truncated.
    setFilterValue('Nereid Trench')
    submitFilter()

    cy.get('.infoBar-text', { timeout: longerCommandTimeout }).should(
      'contain.text',
      "SITE_NAME = 'Nereid Trench'"
    )
    cy.get('.editor-title', { timeout: longerCommandTimeout }).should(
      'contain.text',
      '100 rows'
    )
    cy.get('.truncation-warning').should('not.exist')
  })
})

const visitPage = (url: string) => {
  cy.visit(`${hostUrl}${appLocation}/#/${url}`)
}

// The viewer's options dropdown holds the Edit item; it only renders for a
// table that is registered in MPE_TABLES (tableEditExists()).
const openEdit = () => {
  cy.get('.filterSide', { timeout: longerCommandTimeout }).click()
  cy.contains('[clrDropdownItem]', 'Edit', {
    timeout: longerCommandTimeout
  }).click()
}

/**
 * The EDIT screen's Filter button opens the same .filter-modal the viewer uses.
 * It only renders once the editor is in its read-only (non-editing) state,
 * which is where a failed EDIT load leaves it.
 */
const openFilterPopup = () => {
  cy.contains('button.btnView', 'Filter', {
    timeout: longerCommandTimeout
  }).click()
  cy.get('.filter-modal', { timeout: longerCommandTimeout }).should(
    'be.visible'
  )
}

/** The picker's variable suggestion list. */
const filterVariables = () =>
  cy.get('#datalist_vals_var_id0_0 option', { timeout: longerCommandTimeout })

/** The soft-select drops a transparent overlay over the modal, so it needs force. */
const setFilterVariable = (column: string) => {
  cy.get('#vals_var_id0_0').clear({ force: true }).type(column, { force: true })
  cy.get('#datalist_vals_var_id0_0 option').contains(column).click({
    force: true
  })
  cy.get('#vals_var_id0_0').trigger('keyup', { key: 'Escape', force: true })
}

/** The value input of the same soft-select row. */
const setFilterValue = (value: string) => {
  cy.get('#vals_0_0').clear({ force: true }).type(value, { force: true })
  cy.get('#vals_0_0').trigger('keyup', { key: 'Escape', force: true })
  cy.wait(400)
}

const submitFilter = () => {
  cy.contains('.filter-modal button', 'Ok').click()
  cy.get('.app-loading', { timeout: longerCommandTimeout }).should('not.exist')
  cy.wait(2500)
}

/**
 * Sets a DC option in MPE_CONFIG through the editor and approves it, then hands
 * back to the callback.  The same route licensing.cy.ts uses for the licence
 * keys: the config table needs an approval like any other.
 */
const setConfigValue = (
  varName: string,
  varValue: string,
  callback: () => void
) => {
  reloadApp()
  // straight to the config table's editor, so the flow does not depend on
  // whichever view mode the previous step left behind
  visitPage('editor/DC_JSLIB.MPE_CONFIG')
  closeAbortModalIfPresent()
  clickOnEdit()

  editTableField([{ varName, varValue }], () => {
    submitTable(() => {
      cy.wait(2000)
      approveTable(() => {
        reloadApp()
        callback()
      })
    })
  })
}

/**
 * A full page load.  A visit that only changes the hash does not reload the
 * app, so an open modal - the abort message from the step just gone, say -
 * would still be covering the page.
 */
const reloadApp = () => {
  cy.visit(hostUrl + appLocation)
  cy.get('.app-loading', { timeout: longerCommandTimeout }).should('not.exist')
}

/**
 * DC puts abort messages up as modals over whatever page is showing, and they
 * outlive a hash-only navigation, so clear one before driving the page.
 */
const closeAbortModalIfPresent = () => {
  cy.get('body').then(($body) => {
    if ($body.find('app-info-modal').length > 0) {
      cy.get('app-info-modal')
        .contains('button', 'Close')
        .click({ force: true })
    }
  })
}

/**
 * The viewer's Edit button.  The options dropdown (.filterSide) that openEdit()
 * uses is not rendered for every table, so the config table is opened the way
 * licensing.cy.ts opens it.
 */
const clickOnEdit = (callback?: () => void) => {
  cy.get('.btnCtrl button.btn-primary', { timeout: longerCommandTimeout })
    .click()
    .then(() => {
      if (callback) callback()
    })
}

/** Types a new value into the row whose cell carries varName. */
const editTableField = (
  edits: { varName: string; varValue: string }[],
  callback: () => void
) => {
  cy.get('#hotTable .ht_master .htCore tbody td', {
    timeout: longerCommandTimeout
  }).then(($tds: any) => {
    const nodes = $tds.toArray()

    for (const edit of edits) {
      for (let i = 0; i < nodes.length; i++) {
        // exact match on the cell that holds the option name; the cell after it
        // is the value
        if ((nodes[i].textContent || '').trim() === edit.varName) {
          cy.wrap(nodes[i + 1])
            .dblclick()
            .then(() => {
              cy.focused()
                .type('{selectall}')
                .type(edit.varValue)
                .type('{enter}')
            })
          break
        }
      }
    }

    callback()
  })
}

const submitTable = (callback: () => void) => {
  cy.get('.btnCtrl button.btn-primary', { timeout: longerCommandTimeout })
    .click()
    .then(() => {
      cy.get(".modal.ng-star-inserted button[type='submit']").click()
      callback()
    })
}

const approveTable = (callback: () => void) => {
  cy.get('button', { timeout: longerCommandTimeout })
    .should('contain', 'Approve')
    .then((allButtons: any) => {
      for (const approvalButton of allButtons) {
        if (approvalButton.innerText.toLowerCase().includes('approve')) {
          approvalButton.click()
          break
        }
      }

      cy.get('button#acceptBtn', { timeout: longerCommandTimeout })
        .should('exist')
        .should('not.be.disabled')
        .click()
        .then(() => {
          cy.get('app-history', { timeout: longerCommandTimeout }).should(
            'exist'
          )
          callback()
        })
    })
}

// Handsontable virtualises rows, so the last row is only in the DOM once the
// grid has been scrolled to the bottom.  The scroller is the .wtHolder inside
// the .ht_master pane.
const scrollGridToBottom = () => {
  cy.get('#hotTable .ht_master .wtHolder', { timeout: longerCommandTimeout })
    .scrollTo('bottom', { duration: 0 })
    .trigger('scroll')
}

const openTableFromTree = (libNameIncludes: string, tablename: string) => {
  cy.get('.app-loading', { timeout: longerCommandTimeout })
    .should('not.exist')
    .then(() => {
      cy.get('.nav-tree clr-tree > clr-tree-node', {
        timeout: longerCommandTimeout
      }).then((treeNodes: any) => {
        let targetLib

        for (let node of treeNodes) {
          if (node.innerText.toLowerCase().includes(libNameIncludes)) {
            targetLib = node
            break
          }
        }

        cy.get(targetLib).within(() => {
          // Small settle wait: right after a fresh visit the tree component can
          // still be re-rendering, causing this node to be found then swapped
          // out mid-click.
          cy.wait(300)

          cy.get(
            '.clr-tree-node-content-container .clr-treenode-content p'
          ).click()

          cy.get('.clr-treenode-link').then((innerNodes: any) => {
            for (let innerNode of innerNodes) {
              if (innerNode.innerText.toLowerCase().includes(tablename)) {
                innerNode.click()
                break
              }
            }
          })
        })
      })
    })

  cy.get('#hotTable .ht_clone_top .htCore thead button.changeType', {
    timeout: longerCommandTimeout
  }).should('exist')
}