import type { Datetime, Nsid, ResourceUri } from "@atcute/lexicons/syntax";
import { now as tidNow } from "@atcute/tid";
import type { OAuthUserAgent } from "@atcute/oauth-browser-client";
import type { BobbinContext, XrpcRequestInit } from "$lib/api/client";
import type * as ShTangledLabelDefinition from "$lib/api/lexicons/types/sh/tangled/label/definition";
import { collect } from "$lib/api/pagination";
import { createRecord, deleteRecord, type WrittenRecord } from "$lib/api/write";
import { rkeyFromUri } from "$lib/api/uri";

export type LabelDefinition = ShTangledLabelDefinition.Main;

const LABEL_DEFINITION_COLLECTION = "sh.tangled.label.definition" as Nsid;
const ISSUE_SCOPE = "sh.tangled.repo.issue" as Nsid;
const PULL_SCOPE = "sh.tangled.repo.pull" as Nsid;

export const DEFAULT_LABEL_OWNER = "did:plc:wshs7t2adsemcrrd4snkeqli";
export const DEFAULT_LABELS = [
	`at://${DEFAULT_LABEL_OWNER}/sh.tangled.label.definition/wontfix`,
	`at://${DEFAULT_LABEL_OWNER}/sh.tangled.label.definition/good-first-issue`,
	`at://${DEFAULT_LABEL_OWNER}/sh.tangled.label.definition/duplicate`,
	`at://${DEFAULT_LABEL_OWNER}/sh.tangled.label.definition/documentation`,
	`at://${DEFAULT_LABEL_OWNER}/sh.tangled.label.definition/assignee`
] as ResourceUri[];

export interface LabelView {
	uri: string;
	value: LabelDefinition;
}

export const listLabelDefinitions = async (
	ctx: BobbinContext,
	subject: string,
	init?: XrpcRequestInit
): Promise<LabelView[]> => {
	const items = await collect(
		ctx,
		"sh.tangled.label.listDefinitions",
		{ subject, limit: 100 },
		{ ...init, maxPages: 5 }
	);
	return items.map((item) => ({ uri: item.uri, value: item.value as LabelDefinition }));
};

export const isBasicLabel = (label: LabelDefinition): boolean => label.valueType.type === "null";

export interface CustomLabelInput {
	name: string;
	color: string;
	issues: boolean;
	pulls: boolean;
	keyValue: boolean;
}

export const createLabelDefinition = (
	agent: OAuthUserAgent,
	input: CustomLabelInput
): Promise<WrittenRecord> =>
	createRecord<LabelDefinition>(
		agent,
		LABEL_DEFINITION_COLLECTION,
		{
			$type: "sh.tangled.label.definition",
			name: input.name,
			color: input.color,
			scope: [...(input.issues ? [ISSUE_SCOPE] : []), ...(input.pulls ? [PULL_SCOPE] : [])],
			valueType: input.keyValue
				? { type: "string", format: "any" }
				: { type: "null", format: "any" },
			createdAt: new Date().toISOString() as Datetime
		},
		tidNow()
	);

export const deleteLabelDefinition = (agent: OAuthUserAgent, uri: string): Promise<void> =>
	deleteRecord(agent, LABEL_DEFINITION_COLLECTION, rkeyFromUri(uri));