package vn.sis.appointment;

import java.net.URI;
import java.util.Map;
import java.util.Objects;

public record ApiConfig(
        String baseUrl,
        String tenant,
        String clientId,
        String clientSecret,
        String scope,
        String cookieHeader) {

    public static ApiConfig fromForm(Map<String, String> form) {
        return new ApiConfig(
                value(form, "baseUrl", "https://dhs.sisvietnam.vn"),
                value(form, "tenant", "3a0f747c-57b6-753b-ba21-3987e8e93b9a"),
                value(form, "clientId", "DigitalHealthSolutions_LabConn"),
                value(form, "clientSecret", ""),
                value(form, "scope", "LabConn"),
                value(form, "cookie", ""));
    }

    public ApiConfig {
        baseUrl = trimTrailingSlash(Objects.requireNonNullElse(baseUrl, ""));
        tenant = Objects.requireNonNullElse(tenant, "").trim();
        clientId = Objects.requireNonNullElse(clientId, "").trim();
        clientSecret = Objects.requireNonNullElse(clientSecret, "");
        scope = Objects.requireNonNullElse(scope, "").trim();
        cookieHeader = Objects.requireNonNullElse(cookieHeader, "").trim();
    }

    public void validate() {
        URI uri;
        try {
            uri = URI.create(baseUrl);
        } catch (IllegalArgumentException ex) {
            throw new IllegalArgumentException("Base URL khong hop le.", ex);
        }

        String scheme = uri.getScheme();
        if (scheme == null || !(scheme.equalsIgnoreCase("https") || scheme.equalsIgnoreCase("http"))) {
            throw new IllegalArgumentException("Base URL phai bat dau bang http:// hoac https://.");
        }
        if (tenant.isBlank()) {
            throw new IllegalArgumentException("Tenant khong duoc de trong.");
        }
        if (clientId.isBlank()) {
            throw new IllegalArgumentException("Client ID khong duoc de trong.");
        }
        if (clientSecret.isBlank()) {
            throw new IllegalArgumentException("Client Secret khong duoc de trong.");
        }
        if (scope.isBlank()) {
            throw new IllegalArgumentException("Scope khong duoc de trong.");
        }
    }

    public String tokenUrl() {
        return baseUrl + "/connect/token";
    }

    public String doctorsUrl() {
        return baseUrl + "/api/app/his/doctors/work-schedules";
    }

    public String scheduleUrl(String doctorCode) {
        return baseUrl + "/api/app/his/doctors/" + Urls.encodePathSegment(doctorCode) + "/work-schedule-days";
    }

    public String effectiveCookieHeader() {
        if (!cookieHeader.isBlank()) {
            return cookieHeader;
        }
        return ".AspNetCore.Culture=c%3Den%7Cuic%3Den; __tenant=" + tenant;
    }

    public String cacheKeyMaterial() {
        return String.join("|", baseUrl, tenant, clientId, clientSecret, scope);
    }

    private static String value(Map<String, String> form, String key, String defaultValue) {
        String value = form.get(key);
        return value == null ? defaultValue : value;
    }

    private static String trimTrailingSlash(String value) {
        String result = value.trim();
        while (result.endsWith("/")) {
            result = result.substring(0, result.length() - 1);
        }
        return result;
    }
}