import type { LinkContent } from "@prismicio/types-internal/lib/content"
import type { Link } from "@prismicio/types-internal/lib/customtypes"

import type { AnyLinkDef, DocumentLinkDef, MediaLinkDef, WebLinkDef } from "../../../models"
import {
	isAnyLinkDef,
	isDocumentLinkDef,
	isMediaLinkDef,
	isWebLinkDef,
	LinkRendererOptions,
	RenderContext,
	Renderer,
} from "../../../models"
import type { DocRelation } from "../../../models/fetch"
import AnyLinkRenderer from "./AnyLinkRenderer"
import DocumentLinkRenderer from "./DocumentLinkRenderer"
import ExternalLinkRenderer from "./ExternalLinkRenderer"
import FileLinkRenderer from "./FileLinkRenderer"
import ImageLinkRenderer from "./ImageLinkRenderer"
import MediaLinkRenderer from "./MediaLinkRenderer"

const LinkRenderer: (ctx: RenderContext) => Renderer<Link, LinkContent, DocRelation> = (ctx) => ({
	renderV1(link: LinkContent, fetch: DocRelation | undefined, options?: LinkRendererOptions): unknown {
		if (link.value.__TYPE__ === "ImageLink") {
			return ImageLinkRenderer(ctx).renderV1({ ...link, value: link.value }, undefined, options)
		} else if (link.value.__TYPE__ === "DocumentLink") {
			return DocumentLinkRenderer(ctx).renderV1({ ...link, value: link.value }, fetch, options)
		} else if (link.value.__TYPE__ === "FileLink") {
			return FileLinkRenderer(ctx).renderV1({ ...link, value: link.value }, undefined, options)
		} else if (link.value.__TYPE__ === "ExternalLink") {
			return ExternalLinkRenderer.renderV1({ ...link, value: link.value }, undefined, options)
		} else if (link.value.__TYPE__ === "MediaLink") {
			return MediaLinkRenderer.renderV1({ ...link, value: link.value }, undefined, options)
		} else if (link.value.__TYPE__ === "AnyLink") {
			return AnyLinkRenderer.renderV1({ ...link, value: link.value }, undefined, options)
		} else {
			throw new Error(`No rendered found for link ${JSON.stringify(link)}`) // normally unreachable
		}
	},

	renderV2(def: Link, content: LinkContent, fetch: DocRelation | undefined, options?: LinkRendererOptions): unknown {
		if ((isMediaLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "ImageLink") {
			return ImageLinkRenderer(ctx).renderV2(
				def.config as MediaLinkDef | AnyLinkDef,
				{
					...content,
					value: content.value,
				},
				undefined,
				options,
			)
		} else if ((isDocumentLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "DocumentLink") {
			return DocumentLinkRenderer(ctx).renderV2(
				def.config as DocumentLinkDef | AnyLinkDef,
				{ ...content, value: content.value },
				fetch,
				options,
			)
		} else if ((isMediaLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "FileLink") {
			return FileLinkRenderer(ctx).renderV2(
				def.config as MediaLinkDef | AnyLinkDef,
				{
					...content,
					value: content.value,
				},
				undefined,
				options,
			)
		} else if ((isWebLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "ExternalLink") {
			return ExternalLinkRenderer.renderV2(
				def.config as WebLinkDef | AnyLinkDef,
				{ ...content, value: content.value },
				undefined,
				options,
			)
		} else if ((isMediaLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "MediaLink") {
			return MediaLinkRenderer.renderV2(
				def.config as MediaLinkDef,
				{ ...content, value: content.value },
				undefined,
				options,
			)
		} else if (isAnyLinkDef(def) && content.value.__TYPE__ === "AnyLink") {
			return AnyLinkRenderer.renderV2(
				def.config as AnyLinkDef,
				{ ...content, value: content.value },
				undefined,
				options,
			)
		} else {
			return this.renderDefault(def)
		}
	},

	renderDefault(def: Link): unknown {
		switch (def.config?.select) {
			case "media":
				return {
					link_type: "Media",
				}
			case "document":
				return {
					link_type: "Document",
				}
			case "web":
				return {
					link_type: "Web",
				}
			default:
				return {
					link_type: "Any",
				}
		}
	},

	renderMocks(def: Link, content: LinkContent, options?: LinkRendererOptions): unknown {
		if ((isMediaLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "ImageLink") {
			return ImageLinkRenderer(ctx).renderMocks(
				def.config as MediaLinkDef | AnyLinkDef,
				{
					...content,
					value: content.value,
				},
				options,
			)
		} else if ((isDocumentLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "DocumentLink") {
			return DocumentLinkRenderer(ctx).renderMocks(
				def.config as DocumentLinkDef | AnyLinkDef,
				{
					...content,
					value: content.value,
				},
				options,
			)
		} else if ((isMediaLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "FileLink") {
			return FileLinkRenderer(ctx).renderMocks(
				def.config as MediaLinkDef | AnyLinkDef,
				{
					...content,
					value: content.value,
				},
				options,
			)
		} else if ((isWebLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "ExternalLink") {
			return ExternalLinkRenderer.renderMocks(
				def.config as WebLinkDef | AnyLinkDef,
				{
					...content,
					value: content.value,
				},
				options,
			)
		} else if ((isMediaLinkDef(def) || isAnyLinkDef(def)) && content.value.__TYPE__ === "MediaLink") {
			return MediaLinkRenderer.renderMocks(def.config as MediaLinkDef, { ...content, value: content.value }, options)
		} else if (isAnyLinkDef(def) && content.value.__TYPE__ === "AnyLink") {
			return AnyLinkRenderer.renderMocks(def.config as AnyLinkDef, { ...content, value: content.value }, options)
		} else {
			return this.renderDefault(def)
		}
	},
})

export default LinkRenderer

export { DocumentLinkRenderer, ExternalLinkRenderer, FileLinkRenderer, ImageLinkRenderer }