import { Course, CourseAttendeeRole, CourseEventDetails, CourseEventSummary } from '@shared/types/course'
import { PagedData } from '@shared/types/pagination';

//@ts-ignore
const addr = import.meta.env.VITE_APIHOST;

export async function getTrainingReports(sortMode?: string, search?: string, page?: number, pageSize?: number): Promise<PagedData<CourseEventSummary>> {
    const params = new URLSearchParams();

    if (page !== undefined) {
        params.set("page", page.toString());
    }

    if (pageSize !== undefined) {
        params.set("pageSize", pageSize.toString());
    }

    if (sortMode !== undefined) {
        params.set("sort", sortMode.toString());
    }

    if (search !== undefined || search !== "") {
        params.set("search", search.toString());
    }

    const res = await fetch(`${addr}/courseEvent?${params}`, {
        credentials: 'include',
    });

    if (res.ok) {
        return await res.json() as Promise<PagedData<CourseEventSummary>>;
    } else {
        console.error("Something went wrong");
        throw new Error("Failed to load training reports");
    }
}

export async function getTrainingReport(id: number): Promise<CourseEventDetails> {
    const res = await fetch(`${addr}/courseEvent/${id}`, {
        credentials: 'include',
    });

    if (res.ok) {
        return await res.json() as Promise<CourseEventDetails>;
    } else {
        console.error("Something went wrong");
        throw new Error("Failed to load training reports");
    }
}

export async function getAllTrainings(): Promise<Course[]> {
    const res = await fetch(`${addr}/course`, {
        credentials: 'include',
    });

    if (res.ok) {
        return await res.json() as Promise<Course[]>;
    } else {
        console.error("Something went wrong");
        throw new Error("Failed to load training list");
    }
}

export async function getAllAttendeeRoles(): Promise<CourseAttendeeRole[]> {
    const res = await fetch(`${addr}/course/roles`, {
        credentials: 'include',
    });

    if (res.ok) {
        return await res.json() as Promise<CourseAttendeeRole[]>;
    } else {
        console.error("Something went wrong");
        throw new Error("Failed to load attendee roles");
    }
}

export async function postTrainingReport(report: CourseEventDetails) {
    const res = await fetch(`${addr}/courseEvent`, {
        method: "POST",
        headers: {
            "Content-Type": "application/json",
        },
        body: JSON.stringify(report),
        credentials: 'include',
    });

    if (!res.ok) {
        const errorText = await res.text();
        throw new Error(`Failed to post training report: ${res.status} ${errorText}`);
    }

    return res.json(); // expected to return the inserted report or new ID
}