const compareHours = (hora1, hora2) => {
    const [h1, m1] = hora1.split(":").map(Number);
    const [h2, m2] = hora2.split(":").map(Number);
    if (h1 !== h2) {
        return h1 > h2 ? 1 : -1;
    }
    if (m1 !== m2) {
        return m1 > m2 ? 1 : -1;
    }
    return 0;
};
let horarios = [];
const table = document.querySelector("table");
if (!(table instanceof HTMLTableElement)) {
    triggerMessage("No se ha encontrado la tabla", "Error", "error");
    throw new Error("No se ha encontrado la tabla");
}
[...Array(16).keys()].map(x => x + 7).forEach(hora => {
    // add 7 rows for each hour
    [0, 15, 30, 45].map((minute) => `${minute}`.padStart(2, '0')).forEach((minute) => {
        const tr = document.createElement("tr");
        tr.id = `hora-${hora}:${minute}`;
        tr.classList.add(hora > 13 ? "tarde" : "mañana");
        if (minute == "00") {
            const th = document.createElement("th");
            th.classList.add("text-center");
            th.scope = "row";
            th.rowSpan = 4;
            th.innerText = `${hora}:00`;
            th.style.verticalAlign = "middle";
            tr.appendChild(th);
        }
        ["lunes", "martes", "miércoles", "jueves", "viernes", "sábado"].forEach(día => {
            const td = document.createElement("td");
            td.id = `hora-${hora}:${minute}-${día}`;
            tr.appendChild(td);
        });
        const tbody = document.querySelector("tbody#horario");
        if (!(tbody instanceof HTMLTableSectionElement)) {
            throw new Error("No se ha encontrado el tbody");
        }
        tbody.appendChild(tr);
    });
});
const empty_table = table.cloneNode(true);
document.querySelectorAll('.hidden').forEach((element) => {
    element.style.display = "none";
});
// hide the table
table.style.display = "none";
function moveHorario(id, día, hora) {
    const formData = new FormData();
    formData.append("id", id);
    formData.append("hora", hora);
    formData.append("día", día);
    fetch("action/action_horario_update.php", {
        method: "POST",
        body: formData
    }).then(res => res.json()).then(response => {
        if (response.status == "success") {
            triggerMessage("Horario movido", "Éxito", "success");
        }
        else {
            triggerMessage(response.message, "Error");
        }
    }).then(() => {
        renderHorario();
    }).catch(err => {
        triggerMessage(err, "Error");
    });
}
function renderHorario() {
    if (horarios.length == 0) {
        triggerMessage("Este profesor hay horarios para mostrar", "Error", "info");
        table.style.display = "none";
        document.querySelectorAll('.hidden').forEach((element) => element.style.display = "none");
        return;
    }
    // show the table
    table.style.display = "table";
    document.querySelectorAll('.hidden').forEach((element) => element.style.display = "block");
    // clear the table
    table.innerHTML = empty_table.outerHTML;
    function conflicts(horario1, horario2) {
        const { hora: hora_inicio1, hora_final: hora_final1, dia: dia1 } = horario1;
        const { hora: hora_inicio2, hora_final: hora_final2, dia: dia2 } = horario2;
        if (dia1 !== dia2) {
            return false;
        }
        const compareInicios = compareHours(hora_inicio1, hora_inicio2);
        const compareFinales = compareHours(hora_final1, hora_final2);
        if (compareInicios >= 0 && compareInicios <= compareFinales ||
            compareFinales >= 0 && compareFinales <= -compareInicios) {
            return true;
        }
        return false;
    }
    // remove the next 5 cells
    function removeNextCells(horas, minutos, dia, cells = 5) {
        for (let i = 1; i <= cells; i++) {
            const minute = minutos + i * 15;
            const nextMinute = (minute % 60).toString().padStart(2, "0");
            const nextHour = horas + Math.floor(minute / 60);
            const cellId = `hora-${nextHour}:${nextMinute}-${dia}`;
            const cellElement = document.getElementById(cellId);
            if (cellElement) {
                cellElement.remove();
            }
            else {
                console.log(`No se ha encontrado la celda ${cellId}`);
                break;
            }
        }
    }
    function newBlock(horario, edit = false) {
        function move(horario, cells = 5) {
            const [horas, minutos] = horario.hora.split(":").map(Number);
            const cell = document.getElementById(`hora-${horas}:${minutos.toString().padStart(2, "0")}-${horario.dia}`);
            const { top, left } = cell.getBoundingClientRect();
            const block = document.getElementById(`block-${horario.id}`);
            block.style.top = `${top}px`;
            block.style.left = `${left}px`;
            removeNextCells(horas, minutos, horario.dia, cells);
        }
        const [horas, minutos] = horario.hora.split(":").map(x => parseInt(x));
        const hora = `${horas}:${minutos.toString().padStart(2, "0")}`;
        horario.hora = hora;
        const cell = document.getElementById(`hora-${horario.hora}-${horario.dia}`);
        if (!cell)
            return;
        cell.dataset.ids = `${horario.id}`;
        const float_menu = edit ?
            `<div class="menu-flotante p-2" style="opacity: .7;">
            <a class="mx-2" href="#" data-toggle="modal" data-target="#modal-editar">
                <i class="ing-editar ing"></i>
            </a>
            <a class="mx-2" href="#" data-toggle="modal" data-target="#modal-borrar">
                <i class="ing-basura ing"></i>
            </a>
        </div>`
            : '';
        cell.innerHTML =
            `<div style="overflow-y: auto; overflow-x: hidden; height: 100%;" id="block-${horario.id}" class="position-absolute w-100 h-100">
            <small class="text-gray">${horario.hora}</small>
            <b class="title">${horario.materia}</b> <br>
            <br><span>Salón: </span>${horario.salon} <br>
            <small class="my-2">
              ${horario.profesores.map((profesor) => ` <span class="ing ing-formacion mx-1"></span>${profesor.grado ?? ''} ${profesor.profesor}`).join("<br>")}
            </small>
        </div>
          ${float_menu}`;
        cell.classList.add("bloque-clase", "position-relative");
        cell.rowSpan = horario.bloques;
        // draggable
        cell.draggable = write;
        if (horario.bloques > 0) {
            removeNextCells(horas, minutos, horario.dia, horario.bloques - 1);
        }
    }
    function newConflictBlock(horarios, edit = false) {
        const first_horario = horarios[0];
        const [horas, minutos] = first_horario.hora.split(":").map(x => parseInt(x));
        const hora = `${horas}:${minutos.toString().padStart(2, "0")}`;
        const ids = horarios.map(horario => horario.id);
        const cell = document.getElementById(`hora-${hora}-${first_horario.dia}`);
        if (cell == null) {
            console.error(`Error: No se encontró la celda: hora-${hora}-${first_horario.dia}`);
            return;
        }
        cell.dataset.ids = ids.join(",");
        // replace the content of the cell
        cell.innerHTML = `
          <small class='text-danger'>
            ${hora}
          </small>
          <div class="d-flex justify-content-center align-items-center mt-4">
            <div class="d-flex flex-column justify-content-center align-items-center">
              <span class="ing ing-importante text-danger" style="font-size: 2rem;"></span>
              <b class='text-danger'>
                Empalme de ${ids.length} horarios
              </b>
              <hr>
              <i class="text-danger">Ver horarios &#8230;</i>
            </div>
          </div>
        `;
        // Add classes and attributes
        cell.classList.add("conflict", "bloque-clase");
        cell.setAttribute("role", "button");
        // Add event listener for the cell
        cell.addEventListener("click", () => {
            $("#modal-choose").modal("show");
            const ids = cell.getAttribute("data-ids").split(",").map(x => parseInt(x));
            const tbody = document.querySelector("#modal-choose tbody");
            tbody.innerHTML = "";
            horarios.filter(horario => ids.includes(horario.id)).sort((a, b) => compareHours(a.hora, b.hora)).forEach(horario => {
                tbody.innerHTML += `
              <tr data-ids="${horario.id}">
                <td><small>${horario.hora.slice(0, -3)}-${horario.hora_final.slice(0, -3)}</small></td>
                <td>${horario.materia}</td>
                <td>
                  ${horario.profesores.map(({ grado, profesor }) => `${grado ?? ''} ${profesor}`).join(", ")}
                </td>
                <td>${horario.salon}</td>
                ${edit ? `
                  <td class="text-center">
                    <button class="btn btn-sm btn-primary dismiss-editar" data-toggle="modal" data-target="#modal-editar">
                      <i class="ing-editar ing"></i>
                    </button>
                  </td>
                  <td class="text-center">
                    <button class="btn btn-sm btn-danger dismiss-editar" data-toggle="modal" data-target="#modal-borrar">
                      <i class="ing-basura ing"></i>
                    </button>
                  </td>
                ` : ""}
              </tr>`;
            });
            document.querySelectorAll(".dismiss-editar").forEach(btn => {
                btn.addEventListener("click", () => $("#modal-choose").modal("hide"));
            });
        });
        function getDuration(hora_i, hora_f) {
            const [horas_i, minutos_i] = hora_i.split(":").map(x => parseInt(x));
            const [horas_f, minutos_f] = hora_f.split(":").map(x => parseInt(x));
            const date_i = new Date(0, 0, 0, horas_i, minutos_i);
            const date_f = new Date(0, 0, 0, horas_f, minutos_f);
            const diffInMilliseconds = date_f.getTime() - date_i.getTime();
            const diffInMinutes = diffInMilliseconds / (1000 * 60);
            const diffIn15MinuteIntervals = diffInMinutes / 15;
            return Math.floor(diffIn15MinuteIntervals);
        }
        const maxHoraFinal = horarios.reduce((max, horario) => {
            const [horas, minutos] = horario.hora_final.split(":").map(x => parseInt(x));
            const date = new Date(0, 0, 0, horas, minutos);
            return date > max ? date : max;
        }, new Date(0, 0, 0, 0, 0));
        const horaFinalMax = new Date(0, 0, 0, maxHoraFinal.getHours(), maxHoraFinal.getMinutes());
        const blocks = getDuration(first_horario.hora, `${horaFinalMax.getHours()}:${horaFinalMax.getMinutes()}`);
        cell.setAttribute("rowSpan", blocks.toString());
        removeNextCells(horas, minutos, first_horario.dia, blocks - 1);
    }
    const conflictBlocks = horarios.filter((horario, index, arrayHorario) => arrayHorario.filter((_, i) => i != index).some(horario2 => conflicts(horario, horario2)))
        .sort((a, b) => compareHours(a.hora, b.hora));
    const classes = horarios.filter(horario => !conflictBlocks.includes(horario));
    const conflictBlocksPacked = []; // array of sets
    conflictBlocks.forEach(horario => {
        const setIndex = conflictBlocksPacked.findIndex(set => set.some(horario2 => conflicts(horario, horario2)));
        if (setIndex === -1) {
            conflictBlocksPacked.push([horario]);
        }
        else {
            conflictBlocksPacked[setIndex].push(horario);
        }
    });
    classes.forEach(horario => newBlock(horario, write));
    conflictBlocksPacked.forEach(horarios => newConflictBlock(horarios, write));
    // remove the elements that are not in the limits
    let max_hour = Math.max(...horarios.map(horario => {
        const lastMoment = moment(horario.hora, "HH:mm").add(horario.bloques * 15, "minutes");
        const lastHour = moment(`${lastMoment.hours()}:00`, "HH:mm");
        const hourInt = parseInt(lastMoment.format("HH"));
        return lastMoment.isSame(lastHour) ? hourInt - 1 : hourInt;
    }));
    let min_hour = Math.min(...horarios.map(horario => parseInt(horario.hora.split(":")[0])));
    document.querySelectorAll("tbody#horario tr").forEach(hora => {
        const hora_id = parseInt(hora.id.split("-")[1].split(":")[0]);
        (hora_id < min_hour || hora_id > max_hour) ? hora.remove() : null;
    });
    // if there is no sábado, remove the column
    if (!horarios.some(horario => horario.dia == "sábado")) {
        document.querySelectorAll("tbody#horario td").forEach(td => {
            if (td.id.split("-")[2] == "sábado") {
                td.remove();
            }
        });
        // remove the header (the last)
        document.querySelector("#headers").lastElementChild.remove();
    }
    // adjust width
    const ths = document.querySelectorAll("tr#headers th");
    ths.forEach((th, key) => th.style.width = (key == 0) ? "5%" : `${95 / (ths.length - 1)}%`);
    // search item animation
    const menúFlontantes = document.querySelectorAll(".menu-flotante");
    menúFlontantes.forEach((element) => {
        element.classList.add("d-none");
        element.parentElement.addEventListener("mouseover", () => element.classList.remove("d-none"));
        element.parentElement.addEventListener("mouseout", (e) => element.classList.add("d-none"));
    });
    // droppables
    // forall the .bloque-elements add the event listeners for drag and drop
    document.querySelectorAll(".bloque-clase").forEach(element => {
        function dragStart() {
            this.classList.add("dragging");
        }
        function dragEnd() {
            this.classList.remove("dragging");
        }
        element.addEventListener("dragstart", dragStart);
        element.addEventListener("dragend", dragEnd);
    });
    // forall the cells that are not .bloque-clase add the event listeners for drag and drop
    document.querySelectorAll("td:not(.bloque-clase)").forEach(element => {
        function dragOver(e) {
            e.preventDefault();
            this.classList.add("dragging-over");
        }
        function dragLeave() {
            this.classList.remove("dragging-over");
        }
        function drop() {
            this.classList.remove("dragging-over");
            const dragging = document.querySelector(".dragging");
            const id = dragging.getAttribute("data-ids");
            const hora = this.id.split("-")[1];
            const días = ["lunes", "martes", "miércoles", "jueves", "viernes", "sábado"];
            let día = this.id.split("-")[2];
            día = días.indexOf(día) + 1;
            //  rowspan
            const bloques = parseInt(dragging.getAttribute("rowspan"));
            const horaMoment = moment(hora, "HH:mm");
            const horaFin = horaMoment.add(bloques * 15, "minutes");
            const limit = moment('22:00', 'HH:mm');
            if (horaFin.isAfter(limit)) {
                triggerMessage("No se puede mover el bloque a esa hora", "Error");
                // scroll to the top
                window.scrollTo(0, 0);
                return;
            }
            // get the horario
            // remove the horario
            const bloque = document.querySelector(`.bloque-clase[data-ids="${id}"]`);
            // remove all children
            while (bloque.firstChild) {
                bloque.removeChild(bloque.firstChild);
            }
            // prepend a loading child
            const loading = `<div class="spinner-border" role="status" style="width: 3rem; height: 3rem;">
                                <span class="sr-only">Loading...</span>
                            </div>`;
            bloque.insertAdjacentHTML("afterbegin", loading);
            // add style vertical-align: middle
            bloque.style.verticalAlign = "middle";
            bloque.classList.add("text-center");
            // remove draggable
            bloque.removeAttribute("draggable");
            moveHorario(id, día, hora);
        }
        element.addEventListener("dragover", dragOver);
        element.addEventListener("dragleave", dragLeave);
        element.addEventListener("drop", drop);
    });
}
const form = document.getElementById('form');
if (!(form instanceof HTMLFormElement)) {
    triggerMessage('No se ha encontrado el formulario', 'Error', 'danger');
    throw new Error("No se ha encontrado el formulario");
}
form.querySelector('#clave_profesor').addEventListener('input', function (e) {
    const input = form.querySelector('#clave_profesor');
    const option = form.querySelector(`option[value="${input.value}"]`);
    if (input.value == "") {
        input.classList.remove("is-invalid", "is-valid");
        return;
    }
    if (!option) {
        input.classList.remove("is-valid");
        input.classList.add("is-invalid");
    }
    else {
        const profesor_id = form.querySelector('#profesor_id');
        profesor_id.value = option.dataset.id;
        input.classList.remove("is-invalid");
        input.classList.add("is-valid");
    }
});
form.addEventListener('submit', async function (e) {
    e.preventDefault();
    const input = form.querySelector('#clave_profesor');
    if (input.classList.contains("is-invalid")) {
        triggerMessage('El profesor no se encuentra registrado', 'Error', 'danger');
        return;
    }
    const formData = new FormData(form);
    try {
        const buttons = document.querySelectorAll("button");
        buttons.forEach(button => {
            button.disabled = true;
            button.classList.add("disabled");
        });
        const response = await fetch('action/action_horario_profesor.php', {
            method: 'POST',
            body: formData,
        });
        const data = await response.json();
        buttons.forEach(button => {
            button.disabled = false;
            button.classList.remove("disabled");
        });
        if (data.status == 'success') {
            horarios = data.data;
            renderHorario();
        }
        else {
            triggerMessage(data.message, 'Error en la consulta', 'warning');
        }
    }
    catch (error) {
        triggerMessage('Fallo al consutar los datos ', 'Error', 'danger');
        console.log(error);
    }
});
const input = form.querySelector('#clave_profesor');
const option = form.querySelector(`option[value="${input.value}"]`);