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public.ts
78 lines (74 loc) · 1.43 KB
/
public.ts
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export interface Neighbours {
edge?: number;
current?: number;
}
export interface Options {
target?: number;
neighbours?: Neighbours;
focus?: Item;
}
export interface Item {
key: string;
isCurrent: boolean;
isGap(): boolean;
isNumber(): boolean;
asGap(): GapItem;
asNumber(): NumberItem;
toString(): string;
}
export class GapItem implements Item {
from: number;
to: number;
key: string;
isCurrent: boolean;
constructor(from: number, to: number) {
this.from = from;
this.to = to;
this.key = `${this.from + 1}-${this.to + 1}`;
this.isCurrent = false;
}
asGap(): GapItem {
return this;
}
asNumber(): NumberItem {
throw new Error("Method not implemented.");
}
isGap(): boolean {
return true;
}
isNumber(): boolean {
return false;
}
toString() : string {
return `…${this.key}…`
}
}
export class NumberItem implements Item {
value: number;
key: string;
isCurrent: boolean;
constructor(value: number, current: boolean) {
this.value = value;
this.key = (this.value + 1).toString();
this.isCurrent = current;
}
asGap(): GapItem {
throw new Error("Method not implemented.");
}
asNumber(): NumberItem {
return this;
}
isGap(): boolean {
return false;
}
isNumber(): boolean {
return true;
}
toString() : string {
if (this.isCurrent) {
return `[${this.key}]`
} else {
return this.key
}
}
}