export interface UploadSaveResponse {
    id: string
}

export interface SaveStatusResponse {
    id: string
    game: string
    status: string
    uploadDateTime: string
}

export class SaveParserBackendService {
    private API_BASE = '/api/proxy/parserBackend'

    private async tryGetResponseJson(res: Response): Promise<string> {
        try {
            const body = await res.json()
            return JSON.stringify(body)
        } catch {}
        return ''
    }

    async uploadSave(game: string, file: File): Promise<UploadSaveResponse> {
        const url = `${this.API_BASE}/uploadSave?game=${encodeURIComponent(game)}`
        const response = await fetch(url, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/octet-stream',
            },
            body: file,
        })

        if (!response.ok) {
            throw new Error(`Failed to upload save: ${response.statusText} ${await this.tryGetResponseJson(response)}`)
        }

        return await response.json()
    }

    async getSaveStatus(id: string): Promise<SaveStatusResponse> {
        const url = `${this.API_BASE}/getSaveStatus?id=${encodeURIComponent(id)}`
        const response = await fetch(url)

        if (!response.ok) {
            throw new Error(
                `Failed to get save status: ${response.statusText} ${await this.tryGetResponseJson(response)}`
            )
        }

        return await response.json()
    }

    async getParsedSave(id: string): Promise<Record<string, any>> {
        const url = `${this.API_BASE}/getParsedSave?id=${encodeURIComponent(id)}`
        const response = await fetch(url)

        if (!response.ok) {
            throw new Error(
                `Failed to get parsed save: ${response.statusText} ${await this.tryGetResponseJson(response)}`
            )
        }

        return await response.json()
    }
}

export const saveParserBackendService = new SaveParserBackendService()