import type { CellValueParams, Column } from '../types'
export type { GridState } from './reducer'
export type { GridFocusArea } from './reducer/focus'

export type ColumnSortDetails = {
    sortStrategy: NonNullable<Column<any>['sortStrategy']>
    sortEmptyAs?: NonNullable<Column<any>['sortEmptyAs']>
    valueLookup?: NonNullable<Column<any>['cell']>['value']
}

export type ColumnSortInfo = Record<string, ColumnSortDetails>

export type ColumnState = {
    id: string
    actualWidth: number
    data: Column<any>
    parentId?: string | null
    childIds?: string[]
    isParent?: boolean
}

export type HeaderHierarchyGroup = {
    id: string
    level: number
    width: number
    childIds: string[]
    columnIds: string[]
    parentIds: string[]
}

export type HeaderHierarchy = {
    groups: HeaderHierarchyGroup[]
    levels: number
}

export type ColumnPreference = {
    id: string
    width: number | null
    hidden?: boolean
}

export type ColumnPreferences = {
    sortedIds: null | string[]
    hiddenIds: null | string[]
    entities: Record<string, ColumnPreference>
}

export type StickyColumn = {
    id: string
    index: number
    width: number
}

export type StickyColumnDetails = {
    left: {
        columns: StickyColumn[]
        width: number
    }
    right: {
        columns: StickyColumn[]
        width: number
    }
    indexes: Set<number>
}

export type ColumnAggregationMapType = {
    id: string
    fn?:
        | 'sum'
        | 'avg'
        | 'min'
        | 'max'
        | 'size'
        | ((values: Array<number | Date>) => number | Date)
    value: null | ((props: CellValueParams<any, any>) => number | Date | null)
}