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import { computed, observable, action } from "mobx"
import { observer } from "mobx-react"
import classnames from "classnames"
import { FontAwesomeIcon } from "@fortawesome/react-fontawesome"
import { faInfoCircle } from "@fortawesome/free-solid-svg-icons/faInfoCircle"
import { SortOrder, Time } from "../../coreTable/CoreTableConstants"
import { EntityName, OwidTableSlugs } from "../../coreTable/OwidTableConstants"
import { TickFormattingOptions } from "../../clientUtils/formatValue"
import {
capitalize,
orderBy,
upperFirst,
valuesByEntityAtTimes,
es6mapValues,
valuesByEntityWithinTimes,
getStartEndValues,
sortBy,
countBy,
union,
exposeInstanceOnWindow,
} from "../../clientUtils/Util"
import { SortIcon } from "../controls/SortIcon"
import { Tippy } from "../chart/Tippy"
import { BlankOwidTable, OwidTable } from "../../coreTable/OwidTable"
import { CoreColumn } from "../../coreTable/CoreTableColumns"
import { Bounds, DEFAULT_BOUNDS } from "../../clientUtils/Bounds"
import { makeSelectionArray } from "../chart/ChartUtils"
import { SelectionArray } from "../selection/SelectionArray"
import { ColumnSlug } from "../../clientUtils/owidTypes"
interface DataTableState {
sort: DataTableSortState
}
const ENTITY_DIM_INDEX = -1
type DimensionIndex = number
interface DataTableSortState {
dimIndex: DimensionIndex
columnKey: ColumnKey | undefined
order: SortOrder
}
const DEFAULT_SORT_STATE: DataTableSortState = {
dimIndex: ENTITY_DIM_INDEX,
columnKey: undefined,
order: SortOrder.asc,
}
const columnNameByType: Record<ColumnKey, string> = {
single: "Value",
start: "Start",
end: "End",
delta: "Absolute Change",
deltaRatio: "Relative Change",
}
const inverseSortOrder = (order: SortOrder): SortOrder =>
order === SortOrder.asc ? SortOrder.desc : SortOrder.asc
export interface DataTableManager {
table: OwidTable
entityType: string
endTime?: Time
startTime?: Time
minPopulationFilter?: number
dataTableSlugs?: ColumnSlug[]
}
@observer
export class DataTable extends React.Component<{
manager?: DataTableManager
bounds?: Bounds
}> {
@observable private storedState: DataTableState = {
sort: DEFAULT_SORT_STATE,
}
@computed private get tableState(): DataTableState {
return {
sort: this.sortState,
}
}
@computed private get sortState(): DataTableSortState {
let { dimIndex, columnKey, order } = {
...DEFAULT_SORT_STATE,
...this.storedState.sort,
}
// If not sorted by entity, then make sure the index of the chosen column exists
dimIndex = Math.min(dimIndex, this.table.numColumns - 1)
if (dimIndex !== ENTITY_DIM_INDEX) {
const availableColumns = this.columnsWithValues[
dimIndex
].columns.map((sub) => sub.key)
if (
columnKey === undefined ||
!availableColumns.includes(columnKey)
)
columnKey = availableColumns[0]
}
return {
dimIndex,
columnKey,
order,
}
}
@computed get table(): OwidTable {
return this.inputTable
}
@computed get inputTable(): OwidTable {
return this.manager.table
}
@computed get manager(): DataTableManager {
return (
this.props.manager ?? {
table: BlankOwidTable(),
entityType: "country",
}
)
}
@computed private get entityType(): string {
return this.manager.entityType
}
@computed private get sortValueMapper(): (
row: DataTableRow
) => number | string {
const { dimIndex, columnKey, order } = this.tableState.sort
if (dimIndex === ENTITY_DIM_INDEX)
return (row): string => row.entityName
return (row): string | number => {
const dv = row.dimensionValues[dimIndex] as DimensionValue
let value: number | string | undefined
if (dv) {
if (isSingleValue(dv)) value = dv.single?.value
else if (
isRangeValue(dv) &&
columnKey !== undefined &&
columnKey in RangeValueKey
)
value = dv[columnKey as RangeValueKey]?.value
}
// We always want undefined values to be last
if (
value === undefined ||
(typeof value === "number" &&
(!isFinite(value) || isNaN(value)))
)
return order === SortOrder.asc ? Infinity : -Infinity
return value
}
}
@computed private get hasSubheaders(): boolean {
return this.displayDimensions.some(
(header) => header.columns.length > 1
)
}
@action.bound private updateSort(
dimIndex: DimensionIndex,
columnKey?: ColumnKey
): void {
const { sort } = this.tableState
const order =
sort.dimIndex === dimIndex && sort.columnKey === columnKey
? inverseSortOrder(sort.order)
: dimIndex === ENTITY_DIM_INDEX
? SortOrder.asc
: SortOrder.desc
this.storedState.sort.dimIndex = dimIndex
this.storedState.sort.columnKey = columnKey
this.storedState.sort.order = order
}
private get entityHeader(): JSX.Element {
const { sort } = this.tableState
return (
<ColumnHeader
key="entity"
sortable={true}
sortedCol={sort.dimIndex === ENTITY_DIM_INDEX}
sortOrder={sort.order}
onClick={(): void => this.updateSort(ENTITY_DIM_INDEX)}
rowSpan={this.hasSubheaders ? 2 : 1}
headerText={capitalize(this.entityType)}
colType="entity"
dataType="text"
/>
)
}
private get dimensionHeaders(): JSX.Element[] {
const { sort } = this.tableState
return this.displayDimensions.map((dim, dimIndex) => {
const actualColumn = dim.coreTableColumn
const unit =
actualColumn.unit === "%" ? "percent" : dim.coreTableColumn.unit
const columnName =
actualColumn.displayName !== ""
? actualColumn.displayName
: actualColumn.name
const dimensionHeaderText = (
<React.Fragment>
<span className="name">{upperFirst(columnName)}</span>
<span className="unit">{unit}</span>
</React.Fragment>
)
const props = {
sortable: dim.sortable,
sortedCol: dim.sortable && sort.dimIndex === dimIndex,
sortOrder: sort.order,
onClick: (): void => {
if (dim.sortable) {
this.updateSort(dimIndex, SingleValueKey.single)
}
},
rowSpan: this.hasSubheaders && dim.columns.length < 2 ? 2 : 1,
colSpan: dim.columns.length,
headerText: dimensionHeaderText,
colType: "dimension" as const,
dataType: "numeric" as const,
}
return <ColumnHeader key={actualColumn.slug} {...props} />
})
}
private get dimensionSubheaders(): JSX.Element[][] {
const { sort } = this.tableState
return this.displayDimensions.map((dim, dimIndex) =>
dim.columns.map((column, i) => {
const headerText = isDeltaColumn(column.key)
? columnNameByType[column.key]
: dim.coreTableColumn.table.formatTime(column.targetTime!)
return (
<ColumnHeader
key={column.key}
sortable={column.sortable}
sortedCol={
sort.dimIndex === dimIndex &&
sort.columnKey === column.key
}
sortOrder={sort.order}
onClick={(): void =>
this.updateSort(dimIndex, column.key)
}
headerText={headerText}
colType="subdimension"
dataType="numeric"
subdimensionType={column.key}
lastSubdimension={i === dim.columns.length - 1}
/>
)
})
)
}
private get headerRow(): JSX.Element {
return (
<React.Fragment>
<tr>
{this.entityHeader}
{this.dimensionHeaders}
</tr>
{this.hasSubheaders && <tr>{this.dimensionSubheaders}</tr>}
</React.Fragment>
)
}
private renderValueCell(
key: string,
column: DataTableColumn,
dv: DimensionValue | undefined,
sorted: boolean,
actualColumn: CoreColumn
): JSX.Element {
if (dv === undefined || !(column.key in dv))
return <td key={key} className="dimension" />
let value: Value | undefined
if (isSingleValue(dv)) value = dv[column.key as SingleValueKey] as Value
else if (isRangeValue(dv))
value = dv[column.key as RangeValueKey] as Value
if (value === undefined) return <td key={key} className="dimension" />
const shouldShowClosestTimeNotice =
value.time !== undefined &&
!isDeltaColumn(column.key) &&
column.targetTime !== undefined &&
column.targetTime !== value.time
return (
<td
key={key}
className={classnames([
"dimension",
`dimension-${column.key}`,
{
sorted,
},
])}
>
{shouldShowClosestTimeNotice &&
makeClosestTimeNotice(
actualColumn.table.formatTime(column.targetTime!),
actualColumn.table.formatTime(value.time!) // todo: add back format: "MMM D",
)}
{value.displayValue}
</td>
)
}
private renderEntityRow(
row: DataTableRow,
dimensions: DataTableDimension[]
): JSX.Element {
const { sort } = this.tableState
return (
<tr key={row.entityName}>
<td
key="entity"
className={classnames({
entity: true,
sorted: sort.dimIndex === ENTITY_DIM_INDEX,
})}
>
{row.entityName}
</td>
{row.dimensionValues.map((dv, dimIndex) => {
const dimension = dimensions[dimIndex]
return dimension.columns.map((column, colIndex) => {
const key = `${dimIndex}-${colIndex}`
return this.renderValueCell(
key,
column,
dv,
sort.dimIndex === dimIndex &&
sort.columnKey === column.key,
dimension.coreTableColumn
)
})
})}
</tr>
)
}
private get valueRows(): JSX.Element[] {
return this.sortedRows.map((row) =>
this.renderEntityRow(row, this.displayDimensions)
)
}
@computed get bounds(): Bounds {
return this.props.bounds ?? DEFAULT_BOUNDS
}
render(): JSX.Element {
return (
<div
style={{
width: "100%",
height: "100%",
overflow: "auto",
}}
>
<table className="data-table">
<thead>{this.headerRow}</thead>
<tbody>{this.valueRows}</tbody>
</table>
</div>
)
}
@computed private get loadedWithData(): boolean {
return this.columnsToShow.length > 0
}
private readonly AUTO_SELECTION_THRESHOLD_PERCENTAGE = 0.5
/**
* If the user or the editor hasn't specified a start, auto-select a start time
* where AUTO_SELECTION_THRESHOLD_PERCENTAGE of the entities have values.
*/
@computed get autoSelectedStartTime(): number | undefined {
let autoSelectedStartTime: number | undefined = undefined
if (
// this.grapher.userHasSetTimeline ||
//this.initialTimelineStartTimeSpecified ||
!this.loadedWithData
)
return undefined
const numEntitiesInTable = this.entityNames.length
this.columnsToShow.forEach((column): boolean => {
const numberOfEntitiesWithDataSortedByTime = sortBy(
Object.entries(countBy(column.uniqTimesAsc)),
(value) => parseInt(value[0])
)
const firstTimeWithSufficientData =
numberOfEntitiesWithDataSortedByTime.find((time) => {
const numEntitiesWithData = time[1]
const percentEntitiesWithData =
numEntitiesWithData / numEntitiesInTable
return (
percentEntitiesWithData >=
this.AUTO_SELECTION_THRESHOLD_PERCENTAGE
)
})?.[0]
if (firstTimeWithSufficientData) {
autoSelectedStartTime = parseInt(firstTimeWithSufficientData)
return false
}
return true
})
return autoSelectedStartTime
}
@computed private get columnsToShow(): CoreColumn[] {
const slugs = this.manager.dataTableSlugs ?? []
if (slugs.length)
return slugs
.map((slug: string) => {
const col = this.table.get(slug)
if (!col) console.log(`Warning: column '${slug}' not found`)
return col
})
.filter((col) => col)
const skips = new Set(Object.keys(OwidTableSlugs))
return this.table.columnsAsArray.filter(
(column) =>
!skips.has(column.slug) &&
// dim.property !== "color" &&
(column.display?.includeInTable ?? true)
)
}
@computed private get selectionArray(): SelectionArray {
return makeSelectionArray(this.manager)
}
@computed private get entityNames(): string[] {
let tableForEntities = this.table
if (this.manager.minPopulationFilter)
tableForEntities = tableForEntities.filterByPopulationExcept(
this.manager.minPopulationFilter,
this.selectionArray.selectedEntityNames
)
return union(
...this.columnsToShow.map(
(col) => tableForEntities.get(col.slug).uniqEntityNames
)
)
}
componentDidMount(): void {
exposeInstanceOnWindow(this, "dataTable")
}
formatValue(
column: CoreColumn,
value: number | string | undefined,
formattingOverrides?: TickFormattingOptions
): string | undefined {
return value === undefined
? value
: column.formatValueShort(value, {
numberPrefixes: false,
noTrailingZeroes: false,
...formattingOverrides,
})
}
@computed get targetTimes(): number[] | undefined {
const { startTime, endTime } = this.manager
if (startTime === undefined || endTime === undefined) return undefined
if (startTime !== endTime) return [startTime, endTime]
return [endTime]
}
// todo: this function should be refactored. It's about 5x-10x too long. I'm currently getting an undefined value but it's very hard to figure out where.
@computed get columnsWithValues(): Dimension[] {
return this.columnsToShow.map((sourceColumn) => {
const targetTimes = this.targetTimes ?? [sourceColumn.maxTime]
const targetTimeMode =
targetTimes.length < 2
? TargetTimeMode.point
: TargetTimeMode.range
const prelimValuesByEntity =
targetTimeMode === TargetTimeMode.range
? // In the "range" mode, we receive all data values within the range. But we
// only want to plot the start & end values in the table.
// getStartEndValues() extracts these two values.
es6mapValues(
valuesByEntityWithinTimes(
sourceColumn.valueByEntityNameAndOriginalTime,
targetTimes
),
getStartEndValues
)
: valuesByEntityAtTimes(
sourceColumn.valueByEntityNameAndOriginalTime,
targetTimes,
sourceColumn.tolerance
)
const isRange = targetTimes.length === 2
// Inject delta columns if we have start & end values to compare in the table.
// One column for absolute difference, another for % difference.
const deltaColumns: DimensionColumn[] = []
if (isRange) {
const tableDisplay = {} as any
if (!tableDisplay?.hideAbsoluteChange)
deltaColumns.push({ key: RangeValueKey.delta })
if (!tableDisplay?.hideRelativeChange)
deltaColumns.push({ key: RangeValueKey.deltaRatio })
}
const columns: DimensionColumn[] = [
...targetTimes.map((targetTime, index) => ({
key: isRange
? index === 0
? RangeValueKey.start
: RangeValueKey.end
: SingleValueKey.single,
targetTime,
targetTimeMode,
})),
...deltaColumns,
]
const valueByEntity = es6mapValues(prelimValuesByEntity, (dvs) => {
// There is always a column, but not always a data value (in the delta column the
// value needs to be calculated)
if (isRange) {
const [start, end]: (Value | undefined)[] = dvs
const result: RangeValue = {
start: {
...start,
displayValue: this.formatValue(
sourceColumn,
start?.value
),
},
end: {
...end,
displayValue: this.formatValue(
sourceColumn,
end?.value
),
},
delta: undefined,
deltaRatio: undefined,
}
if (
start !== undefined &&
end !== undefined &&
typeof start.value === "number" &&
typeof end.value === "number"
) {
const deltaValue = end.value - start.value
const deltaRatioValue =
deltaValue / Math.abs(start.value)
result.delta = {
value: deltaValue,
displayValue: this.formatValue(
sourceColumn,
deltaValue,
{
showPlus: true,
unit:
sourceColumn.shortUnit === "%"
? "pp"
: sourceColumn.shortUnit,
}
),
}
result.deltaRatio = {
value: deltaRatioValue,
displayValue:
isFinite(deltaRatioValue) &&
!isNaN(deltaRatioValue)
? this.formatValue(
sourceColumn,
deltaRatioValue * 100,
{
unit: "%",
numDecimalPlaces: 0,
showPlus: true,
}
)
: undefined,
}
}
return result
} else {
// if single time
const dv = dvs[0]
const result: SingleValue = {
single: { ...dv },
}
if (dv !== undefined)
result.single!.displayValue = this.formatValue(
sourceColumn,
dv.value
)
return result
}
})
return {
columns,
valueByEntity,
sourceColumn,
}
})
}
@computed get displayDimensions(): DataTableDimension[] {
// Todo: for sorting etc, use CoreTable?
return this.columnsWithValues.map((d) => ({
// A top-level header is only sortable if it has a single nested column, because
// in that case the nested column is not rendered.
sortable: d.columns.length === 1,
columns: d.columns.map((column) => ({
...column,
// All columns are sortable for now, but in the future we will have a sparkline that
// is not sortable.
sortable: true,
})),
coreTableColumn: d.sourceColumn,
}))
}
@computed private get sortedRows(): DataTableRow[] {
const { order } = this.tableState.sort
return orderBy(this.displayRows, this.sortValueMapper, [order])
}
@computed private get displayRows(): DataTableRow[] {
return this.entityNames.map((entityName) => {
return {
entityName,
dimensionValues: this.columnsWithValues.map((d) =>
d.valueByEntity.get(entityName)
),
}
})
}
}
function ColumnHeader(props: {
sortable: boolean
sortedCol: boolean
sortOrder: SortOrder
onClick: () => void
rowSpan?: number
colSpan?: number
headerText: React.ReactFragment
colType: "entity" | "dimension" | "subdimension"
dataType: "text" | "numeric"
subdimensionType?: ColumnKey
lastSubdimension?: boolean
}): JSX.Element {
const { sortable, sortedCol, colType, subdimensionType, lastSubdimension } =
props
return (
<th
className={classnames(colType, {
sortable,
sorted: sortedCol,
firstSubdimension: subdimensionType === "start",
endSubdimension: subdimensionType === "end",
lastSubdimension,
})}
rowSpan={props.rowSpan ?? 1}
colSpan={props.colSpan ?? 1}
onClick={props.onClick}
>
<div
className={classnames({
deltaColumn: isDeltaColumn(subdimensionType),
})}
>
{props.headerText}
{sortable && (
<SortIcon
type={props.dataType}
isActiveIcon={sortedCol}
order={
sortedCol
? props.sortOrder
: colType === "entity"
? SortOrder.asc
: SortOrder.desc
}
/>
)}
</div>
</th>
)
}
const makeClosestTimeNotice = (
targetTime: string,
closestTime: string
): JSX.Element => (
<Tippy
content={
<div className="closest-time-notice-tippy">
<strong>Data not available for {targetTime}</strong>
<br />
Showing closest available data point ({closestTime})
</div>
}
arrow={false}
>
<span className="closest-time-notice-icon">
{closestTime}{" "}
<span className="icon">
<FontAwesomeIcon icon={faInfoCircle} />
</span>
</span>
</Tippy>
)
enum TargetTimeMode {
point = "point",
range = "range",
}
interface Dimension {
columns: DimensionColumn[]
valueByEntity: Map<string, DimensionValue>
sourceColumn: CoreColumn
}
interface DimensionColumn {
key: SingleValueKey | RangeValueKey
targetTime?: Time
targetTimeMode?: TargetTimeMode
}
interface DataTableColumn extends DimensionColumn {
sortable: boolean
}
interface Value {
value?: string | number
displayValue?: string
time?: Time
}
// range (two point values)
enum RangeValueKey {
start = "start",
end = "end",
delta = "delta",
deltaRatio = "deltaRatio",
}
type RangeValue = Record<RangeValueKey, Value | undefined>
function isRangeValue(value: DimensionValue): value is RangeValue {
return "start" in value
}
// single point values
enum SingleValueKey {
single = "single",
}
type SingleValue = Record<SingleValueKey, Value | undefined>
function isSingleValue(value: DimensionValue): value is SingleValue {
return "single" in value
}
// combined types
type DimensionValue = SingleValue | RangeValue
type ColumnKey = SingleValueKey | RangeValueKey
interface DataTableDimension {
columns: DataTableColumn[]
coreTableColumn: CoreColumn
sortable: boolean
}
interface DataTableRow {
entityName: EntityName
dimensionValues: (DimensionValue | undefined)[] // TODO make it not undefined
}
function isDeltaColumn(columnKey?: ColumnKey): boolean {
return columnKey === "delta" || columnKey === "deltaRatio"
}
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