import { get, post } from "./api.js";
import { errorText, h, replace, showAlert } from "./dom.js";
import { focusLead } from "./panes.js";
import { summaryMark } from "./project.js";
import { activeTasks, findTask, focusedProject, focusProject, focusTab, focusTask, lastVisits, onEach, openSummary, state, taskState, unreadSummary } from "./state.js";
import { confirmMerge, models } from "./task.js";
import { taskStyle } from "./taskcolor.js";
export function bindShortcuts() {
    addEventListener("keydown", (e) => {
        if (!(e.metaKey || e.ctrlKey) || document.querySelector("dialog[open]")) {
            return;
        }
        if (e.key === "k") {
            e.preventDefault();
            openSwitcher();
        }
        else if (e.key === "p") {
            e.preventDefault();
            focusTab("project");
        }
        else if (e.key === "l") {
            e.preventDefault();
            focusLead();
        }
        else if (e.key === "s") {
            e.preventDefault();
            if (state.selectedTaskId) {
                void confirmMerge(state.selectedTaskId);
            }
        }
        else if (e.key === "/") {
            e.preventDefault();
            showShortcuts();
        }
    });
}
const shortcuts = [
    [
        "Anywhere",
        [
            ["⌘K", "Switch task, or create one"],
            ["⌘P", "Open the Project tab"],
            ["⌘L", "Open the Lead tab and its composer"],
            ["⌘S", "Merge the right pane's task"],
            ["⌘/", "Show these shortcuts"],
            ["Esc", "Close the switcher or a dialog"],
        ],
    ],
    [
        "Task switcher",
        [
            ["↑ ↓", "Move the highlight"],
            ["Enter", "Pick the highlighted row"],
            ["name: title", "Create the task in the project whose name starts with name"],
            ["Esc", "Back from the workflow list to the task list"],
        ],
    ],
    [
        "Composer and inbox answers",
        [
            ["Enter", "Send"],
            ["Shift+Enter", "New line"],
            ["Enter / Space", "Pick the focused choice"],
        ],
    ],
    [
        "Dialogs",
        [["Enter", "Confirm"]],
    ],
    [
        "Terminal",
        [["Ctrl+…", "Goes to the shell, not to byre"]],
    ],
];
function showShortcuts() {
    void showAlert([
        h("h2", { class: "shortcuts-title" }, "Keyboard shortcuts"),
        ...shortcuts.map(([group, rows]) => h("section", { class: "shortcuts-group" }, h("h3", {}, group), h("dl", {}, ...rows.flatMap(([keys, what]) => [h("dt", {}, h("kbd", {}, keys)), h("dd", {}, what)])))),
        h("p", { class: "hint" }, "Ctrl works in place of ⌘."),
    ]);
}
export function openSwitcher() {
    if (document.querySelector(".switcher")) {
        return;
    }
    const placeholder = "Go to a task, or type a title to create one…";
    const input = h("input", { placeholder, autocomplete: "off" });
    const list = h("ul", { class: "switcher-list" });
    const backdrop = h("div", { class: "switcher-backdrop" });
    const box = h("div", { class: "switcher" }, input, list);
    let selected = 0;
    let rows = [];
    let picking = null;
    const offs = onEach(["projects", "tasks", "sessions", "inbox", "summaries"], () => render());
    const onEscape = (e) => {
        if (e.key !== "Escape") {
            return;
        }
        e.preventDefault();
        e.stopPropagation();
        if (picking) {
            input.value = picking.typed;
            input.placeholder = placeholder;
            picking = null;
            selected = 0;
            render();
            return;
        }
        close();
    };
    addEventListener("keydown", onEscape, { capture: true });
    const close = () => {
        offs();
        removeEventListener("keydown", onEscape, { capture: true });
        backdrop.remove();
        box.remove();
    };
    const go = (taskId) => {
        close();
        const task = findTask(taskId);
        if (state.inbox.some((item) => item.task_id === taskId)) {
            focusTask(taskId, "inbox");
        }
        else if (task && unreadSummary(task)) {
            openSummary(task);
        }
        else {
            focusTask(taskId, "transcript");
        }
    };
    const create = async (projectId, title, workflow) => {
        close();
        try {
            const task = await post("/api/projects/{projectId}/tasks", { path: { projectId }, body: { title, workflow } });
            go(task.id);
        }
        catch (err) {
            void showAlert(errorText(err));
        }
    };
    const pickWorkflow = async (project, title) => {
        const p = { project, title, typed: input.value, workflows: undefined };
        picking = p;
        input.value = "";
        input.placeholder = `Pick a workflow to start in ${project.name}: ${title}`;
        selected = 0;
        render();
        input.focus();
        try {
            p.workflows = await get("/api/workflows");
        }
        catch (err) {
            close();
            void showAlert(errorText(err));
            return;
        }
        if (picking === p) {
            render();
        }
    };
    const renderWorkflows = (p) => {
        const q = input.value.trim().toLowerCase();
        rows = (p.workflows ?? [])
            .filter((w) => `${w.name} ${w.description}`.toLowerCase().includes(q))
            .map((w) => {
            const el = h("li", { class: "new-task" }, h("span", { class: "task-title" }, "Start ", h("span", { class: "workflow-name" }, w.name), " in ", h("span", { class: "project-name" }, p.project.name), ": ", p.title, w.description && h("span", { class: "workflow-description" }, w.description)), h("span", { class: "task-state" }, "workflow"));
            return { el, pick: () => void create(p.project.id, p.title, w.name) };
        });
        if (p.workflows === undefined) {
            return "Loading workflows…";
        }
        return p.workflows.length === 0 ? "No saved workflows." : "No workflow matches.";
    };
    const render = () => {
        const empty = picking ? renderWorkflows(picking) : renderTasks();
        selected = Math.min(selected, Math.max(rows.length - 1, 0));
        rows.forEach((row, i) => {
            row.el.classList.toggle("selected", i === selected);
            row.el.onmousedown = (e) => {
                e.preventDefault();
                row.pick();
            };
        });
        replace(list, ...rows.map((r) => r.el), rows.length === 0 && h("li", { class: "empty-row" }, empty));
        rows[selected]?.el.scrollIntoView({ block: "nearest" });
    };
    const renderTasks = () => {
        const typed = input.value.trim();
        const prefix = /^([^:\s]+):\s*(.*)$/.exec(typed);
        const named = prefix ? state.projects.filter((p) => p.name.toLowerCase().startsWith(prefix[1].toLowerCase())) : [];
        const targets = named.length > 0 ? named : undefined;
        const title = targets ? prefix[2] : typed;
        const q = title.toLowerCase();
        const inbox = (taskId) => state.inbox.filter((item) => item.task_id === taskId).length;
        const visits = lastVisits();
        const matches = activeTasks()
            .filter(({ project, task }) => targets ? targets.some((p) => p.id === project.id) && task.title.toLowerCase().includes(q) : `${project.name} ${task.title}`.toLowerCase().includes(q))
            .map((m) => ({ ...m, count: inbox(m.task.id), visited: m.task.id === state.selectedTaskId ? Infinity : (visits[m.task.id] ?? 0) }))
            .sort((a, b) => Number(b.count > 0) - Number(a.count > 0) || a.visited - b.visited);
        rows = matches.map(({ project, task, count }) => {
            const ts = taskState(task);
            const el = h("li", { style: taskStyle(task.id) }, h("span", { class: `dot ${ts.kind}`, title: ts.title }), h("span", { class: "task-title" }, h("span", { class: "project-name" }, project.name), " ", task.parent_task_id !== undefined && h("span", { class: "subtask-mark" }, `${findTask(task.parent_task_id)?.title ?? task.parent_task_id} ↳ `), h("span", { class: "task-name" }, task.title)), count > 0 && h("span", { class: "badge", title: "inbox items" }, count), summaryMark(task), h("span", { class: `task-state ${ts.kind}`, title: ts.title }, ts.label));
            return { el, pick: () => go(task.id) };
        });
        for (const p of (targets ?? state.projects).filter((p) => `${p.name} project`.toLowerCase().includes(q))) {
            const el = h("li", {}, h("span", { class: "dot none" }), h("span", { class: "task-title" }, h("span", { class: "project-name" }, p.name)), h("span", { class: "task-state" }, "project"));
            rows.push({
                el,
                pick: () => {
                    close();
                    focusProject(p.id);
                },
            });
        }
        const fallback = focusedProject() ?? state.projects[0];
        for (const project of title ? (targets ?? (fallback ? [fallback] : [])) : []) {
            const el = h("li", { class: "new-task" }, h("span", { class: "task-title" }, "New task in ", h("span", { class: "project-name" }, project.name), ": ", title), h("span", { class: "task-state", title: "Model for the first message" }, models[0]));
            rows.push({ el, pick: () => void create(project.id, title) });
            const wf = h("li", { class: "new-task" }, h("span", { class: "task-title" }, "Start workflow… in ", h("span", { class: "project-name" }, project.name), ": ", title), h("span", { class: "task-state" }, "workflow"));
            rows.push({ el: wf, pick: () => void pickWorkflow(project, title) });
        }
        return "No active tasks. Type a title to create one.";
    };
    input.oninput = () => {
        selected = 0;
        render();
    };
    input.onkeydown = (e) => {
        if (e.key === "ArrowDown") {
            e.preventDefault();
            selected = Math.min(selected + 1, rows.length - 1);
            render();
        }
        else if (e.key === "ArrowUp") {
            e.preventDefault();
            selected = Math.max(selected - 1, 0);
            render();
        }
        else if (e.key === "Enter") {
            e.preventDefault();
            rows[selected]?.pick();
        }
    };
    backdrop.onclick = close;
    const anchor = document.querySelector(".task-picker").getBoundingClientRect();
    box.style.top = `${anchor.bottom + 4}px`;
    document.body.append(backdrop, box);
    const viewport = document.documentElement.clientWidth;
    const left = anchor.left + anchor.width / 2 - box.offsetWidth / 2;
    box.style.left = `${Math.max(8, Math.min(left, viewport - box.offsetWidth - 8))}px`;
    render();
    input.focus();
}
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