import { useEffect, useState } from "react";
import { useFetch } from "../hooks";
import { post } from "../api";
import { getLang, useT } from "../i18n";
import { JOB_TEMPLATES, SCHEDULES, type JobTemplate } from "../jobTemplates";
import { Icon } from "./Icon";
import { ModelSelect } from "./ModelSelect";
import { FolderPicker } from "./NewSession";

/** Create an automation from a template: pick it, choose the project, adjust, create. */
export function JobTemplateDialog({ onClose, onCreated }: { onClose: () => void; onCreated: () => void }) {
  const t = useT();
  const de = getLang() === "de";
  const [tpl, setTpl] = useState<JobTemplate>();
  const [name, setName] = useState("");
  const [schedule, setSchedule] = useState("");
  const [agent, setAgent] = useState("build");
  const [mode, setMode] = useState("auto");
  const [model, setModel] = useState("");
  const [prompt, setPrompt] = useState("");
  const [cwd, setCwd] = useState(localStorage.getItem("codecraft.lastDir") ?? "");
  const [error, setError] = useState<string>();
  const [busy, setBusy] = useState(false);
  const config = useFetch<{ default_model?: string }>("/config").data;
  useEffect(() => {
    if (!model && config?.default_model) setModel(config.default_model);
  }, [config, model]);

  const choose = (x: JobTemplate) => {
    setTpl(x);
    setName(de ? x.name.de : x.name.en);
    setSchedule(x.schedule);
    setAgent(x.agent);
    setPrompt(x.prompt);
  };

  const create = async () => {
    setBusy(true);
    setError(undefined);
    try {
      await post("/jobs/create", { cwd, name: name.trim(), schedule: schedule.trim(), agent, permission_mode: mode, model: model || undefined, prompt });
      onCreated();
      onClose();
    } catch (e: any) {
      setError(e.message);
    } finally {
      setBusy(false);
    }
  };

  return (
    <div className="modal-backdrop" onClick={onClose}>
      <div className="modal job-tpl" role="dialog" aria-label={t("jobs.fromTemplate")} onClick={(e) => e.stopPropagation()}>
        {!tpl ? (
          <>
            <h3>{t("jobs.fromTemplate")}</h3>
            <div className="job-tpl-grid">
              {JOB_TEMPLATES.map((x) => (
                <button key={x.id} className="job-tpl-card" onClick={() => choose(x)}>
                  <Icon name={x.icon} />
                  <span>
                    <b>{de ? x.name.de : x.name.en}</b>
                    <small>{de ? x.desc.de : x.desc.en}</small>
                  </span>
                </button>
              ))}
            </div>
            <div className="row" style={{ marginTop: 12, justifyContent: "flex-end" }}>
              <button onClick={onClose}>{t("common.cancel")}</button>
            </div>
          </>
        ) : (
          <>
            <h3>
              <Icon name={tpl.icon} /> {de ? tpl.name.de : tpl.name.en}
            </h3>
            <label className="field">
              <span>{t("jobs.tplName")}</span>
              <input value={name} onChange={(e) => setName(e.target.value)} />
            </label>
            <div className="field">
              <span>{t("jobs.tplProject")}</span>
              <FolderPicker path={cwd} onPick={setCwd} />
            </div>
            <div className="field">
              <span>{t("jobs.tplSchedule")}</span>
              <div className="row" style={{ gap: 6, flexWrap: "wrap" }}>
                {SCHEDULES.map((s) => (
                  <button key={s.cron} type="button" className={`chip-btn ${schedule === s.cron ? "active" : ""}`} onClick={() => setSchedule(s.cron)}>
                    {de ? s.de : s.en}
                  </button>
                ))}
              </div>
              <input className="mono" value={schedule} onChange={(e) => setSchedule(e.target.value)} placeholder="0 3 * * *" />
              <small className="hint">{t("jobs.tplCronHint")}</small>
            </div>
            <div className="row" style={{ gap: 10, flexWrap: "wrap" }}>
              <label className="field">
                <span>{t("jobs.tplMode")}</span>
                <select value={agent} onChange={(e) => setAgent(e.target.value)}>
                  <option value="build">build</option>
                  <option value="plan">plan</option>
                </select>
              </label>
              <label className="field">
                <span>{t("composer.permissionMode")}</span>
                <select value={mode} onChange={(e) => setMode(e.target.value)}>
                  <option value="auto">{t("permissionMode.auto")}</option>
                  <option value="accept_edits">{t("permissionMode.accept_edits")}</option>
                  <option value="bypass">{t("permissionMode.bypass")}</option>
                </select>
              </label>
              <label className="field">
                <span>{t("composer.model")}</span>
                <ModelSelect value={model} onChange={setModel} />
              </label>
            </div>
            <label className="field">
              <span>{t("jobs.tplPrompt")}</span>
              <textarea rows={6} value={prompt} onChange={(e) => setPrompt(e.target.value)} />
            </label>
            {error && <div className="notice err">{error}</div>}
            <div className="row" style={{ marginTop: 12, justifyContent: "flex-end" }}>
              <button onClick={() => setTpl(undefined)}>{t("common.back")}</button>
              <button className="primary" disabled={busy || !cwd || !name.trim() || !schedule.trim() || !prompt.trim()} onClick={create}>
                {t("jobs.tplCreate")}
              </button>
            </div>
          </>
        )}
      </div>
    </div>
  );
}