import React, { useEffect, useState } from "react";
import { CaretDown, CaretUp } from "@phosphor-icons/react";
import System from "@/models/system";
import PreLoader from "@/components/Preloader";
import { DPAIS_COMMON_URLS } from "@/utils/constants";
import useProviderEndpointAutoDiscovery from "@/hooks/useProviderEndpointAutoDiscovery";

export default function DellProAIStudioOptions({ settings }) {
  const {
    autoDetecting: loading,
    basePath,
    basePathValue,
    showAdvancedControls,
    setShowAdvancedControls,
    handleAutoDetectClick,
  } = useProviderEndpointAutoDiscovery({
    provider: "dpais",
    initialBasePath: settings?.DellProAiStudioBasePath,
    ENDPOINTS: DPAIS_COMMON_URLS,
  });

  return (
    <div className="w-full flex flex-col gap-y-7">
      <div className="w-full flex items-center gap-[36px] mt-1.5">
        {!settings?.credentialsOnly && (
          <>
            <DellProAiStudioModelSelection
              settings={settings}
              basePath={basePath.value}
            />
            <div className="flex flex-col w-60">
              <label className="text-white text-sm font-semibold block mb-2">
                Model context window
              </label>
              <input
                type="number"
                name="DellProAiStudioTokenLimit"
                className="border-none bg-theme-settings-input-bg text-white placeholder:text-theme-settings-input-placeholder text-sm rounded-lg focus:outline-primary-button active:outline-primary-button outline-none block w-full p-2.5"
                placeholder="4096"
                min={1}
                onScroll={(e) => e.target.blur()}
                defaultValue={settings?.DellProAiStudioTokenLimit}
                required={true}
                autoComplete="off"
              />
            </div>
          </>
        )}
      </div>
      <div className="flex justify-start mt-4">
        <button
          onClick={(e) => {
            e.preventDefault();
            setShowAdvancedControls(!showAdvancedControls);
          }}
          className="border-none text-theme-text-primary hover:text-theme-text-secondary flex items-center text-sm"
        >
          {showAdvancedControls ? "Hide" : "Show"} advanced settings
          {showAdvancedControls ? (
            <CaretUp size={14} className="ml-1" />
          ) : (
            <CaretDown size={14} className="ml-1" />
          )}
        </button>
      </div>
      <div hidden={!showAdvancedControls}>
        <div className="w-full flex items-center gap-4">
          <div className="flex flex-col w-fit">
            <div className="flex justify-between items-center mb-2 gap-x-2">
              <label className="text-white text-sm font-semibold">
                Dell Pro AI Studio Base URL
              </label>
              {loading ? (
                <PreLoader size="6" />
              ) : (
                <>
                  {!basePathValue.value && (
                    <button
                      onClick={handleAutoDetectClick}
                      className="bg-primary-button text-xs font-medium px-2 py-1 rounded-lg hover:bg-secondary hover:text-white shadow-[0_4px_14px_rgba(0,0,0,0.25)]"
                    >
                      Auto-Detect
                    </button>
                  )}
                </>
              )}
            </div>
            <input
              type="url"
              name="DellProAiStudioBasePath"
              className="border-none bg-theme-settings-input-bg text-white placeholder:text-theme-settings-input-placeholder text-sm rounded-lg focus:outline-primary-button active:outline-primary-button outline-none block w-full p-2.5"
              placeholder="http://localhost:8553/v1/openai"
              value={basePathValue.value}
              required={true}
              autoComplete="off"
              spellCheck={false}
              onChange={basePath.onChange}
              onBlur={basePath.onBlur}
            />
          </div>
        </div>
      </div>
    </div>
  );
}

function DellProAiStudioModelSelection({ settings, basePath = null }) {
  const [customModels, setCustomModels] = useState([]);
  const [loading, setLoading] = useState(true);

  useEffect(() => {
    async function findCustomModels() {
      if (!basePath) {
        setCustomModels([]);
        setLoading(false);
        return;
      }
      setLoading(true);
      const { models } = await System.customModels(
        "dpais",
        null,
        basePath,
        2_000
      );
      setCustomModels(models || []);
      setLoading(false);
    }
    findCustomModels();
  }, [basePath]);

  if (loading || customModels.length == 0) {
    return (
      <div className="flex flex-col w-60">
        <label className="text-white text-sm font-semibold block mb-2">
          Chat Model Selection
        </label>
        <select
          name="DellProAiStudioModelPref"
          disabled={true}
          className="border-none bg-theme-settings-input-bg border-gray-500 text-white text-sm rounded-lg block w-full p-2.5"
        >
          <option disabled={true} selected={true}>
            -- loading available models --
          </option>
        </select>
      </div>
    );
  }

  return (
    <div className="flex flex-col w-60">
      <label className="text-white text-sm font-semibold block mb-2">
        Chat Model Selection
      </label>
      <select
        name="DellProAiStudioModelPref"
        required={true}
        className="border-none bg-theme-settings-input-bg border-gray-500 text-white text-sm rounded-lg block w-full p-2.5"
      >
        {customModels.length > 0 && (
          <optgroup label="Your loaded models">
            {customModels.map((model) => {
              return (
                <option
                  key={model.id}
                  value={model.id}
                  selected={settings.DellProAiStudioModelPref === model.id}
                >
                  {model.id}
                </option>
              );
            })}
          </optgroup>
        )}
      </select>
    </div>
  );
}
