(function (window, document) {
    "use strict";

    const API = Object.freeze({ key: "payload-key", save: "application-save" });
    const BOOLEAN_FIELDS = Object.freeze({
        residenceVerification: "rv",
        residenceTelephoneVerification: "rtv",
        officeVerification: "ov",
        officeTelephoneVerification: "otv",
        propertyVerification: "pv",
        referenceVerification: "refv",
        documentVerification: "docv",
        residenceCoApplicant: "rco",
        residenceCoProprietor: "rcp",
        officeCoProprietor: "ocp",
        sameResidenceAddress: "sradd",
        sameOfficeAddress: "soadd",
        samePropertyAddress: "spadd",
        autoCutOff: "autocut"
    });
    const VALUE_FIELDS = Object.freeze({
        applicationId: "case_id", portfolioId: "portfolio_id", bankBranchId: "bank_branch_id",
        applicationNumber: "applno", bankCode: "bankcode", product: "product",
        loanAmount: "loanamount", customerName: "customername", fatherName: "fathername",
        applicationType: "apptype", category: "category", dateOfBirth: "dob",
        contactPerson: "contactperson", mobileNumber: "mobileno", specialInstruction: "specialinst",
        residenceAddress1: "raddr1", residenceAddress2: "raddr2", residenceAddress3: "raddr3",
        residenceLandmark: "rlandmark", residenceColonyId: "Rcolony", residenceCity: "rcity",
        residencePincode: "rpincode", residencePhone: "rphone", companyName: "companyname",
        officeAddress1: "oaddr1", officeAddress2: "oaddr2", officeAddress3: "oaddr3",
        officeLandmark: "olandmark", officeColonyId: "Ocolony", officeCity: "ocity",
        officePincode: "opincode", department: "department", designation: "designation",
        officePhone: "ophone", extension: "extension", propertyAddress1: "paddr1",
        propertyAddress2: "paddr2", propertyAddress3: "paddr3", propertyLandmark: "plandmark",
        propertyColonyId: "Pcolony", propertyCity: "pcity", propertyPincode: "ppincode",
        referenceName1: "refname1", referenceAddress1: "refaddress1",
        referenceContactNumber1: "refcontactno1", referenceName2: "refname2",
        referenceAddress2: "refaddress2", referenceContactNumber2: "refcontactno2",
        formMode: "formmode"
    });
    const INTEGER_FIELDS = new Set(["applicationId", "portfolioId", "bankBranchId", "residenceColonyId",
        "officeColonyId", "propertyColonyId", "formMode"]);
    const element = (id) => document.getElementById(id);
    const value = (id) => element(id)?.value?.trim() ?? "";
    const integer = (id) => {
        const parsed = Number.parseInt(value(id), 10);
        return Number.isFinite(parsed) ? parsed : 0;
    };
    const checked = (id) => Boolean(element(id)?.checked);

    function collectDynamicFields() {
        const names = value("dynamicfields").split(window.ColDelim || "!C0L!").filter(Boolean);
        return names.reduce((result, name) => {
            if (/^(?:field(?:[1-9]|1[0-2])|dtfield1)$/.test(name) && element(name)) {
                result[name] = value(name);
            }
            return result;
        }, {});
    }

    function collectCase() {
        const details = {};
        Object.entries(VALUE_FIELDS).forEach(([property, id]) => {
            details[property] = INTEGER_FIELDS.has(property) ? integer(id) : value(id);
        });
        Object.entries(BOOLEAN_FIELDS).forEach(([property, id]) => { details[property] = checked(id); });
        details.dynamicFields = collectDynamicFields();
        return details;
    }

    function validateForm() {
        const verificationIds = ["rv", "rtv", "ov", "otv", "pv", "refv", "docv"];
        if (!verificationIds.some(checked)) {
            showAlert("danger", "APP-4221", "At least one verification type is required.");
            return false;
        }
        window.invalidFields = 0;
        window.validate(element("applno"), "t", "AlphaNumeric");
        window.validate(element("bank_branch_id"), "t", "");
        window.validate(element("product"), "t", "");
        window.validate(element("customername"), "t", "AlphaSpace");
        window.validate(element("apptype"), "t", "");
        if (checked("rv")) window.CheckForm(element("rv"), "raddr1,raddr2,raddr3,rlandmark,colr,rcity,rpincode", "t,f,t,f,t,t,f", "SplInstruction,SplInstruction,SplInstruction,SplInstruction,SplInstruction,,Pincode");
        if (checked("ov")) window.CheckForm(element("ov"), "companyname,oaddr1,oaddr2,oaddr3,olandmark,colo,ocity,opincode,department,designation", "f,t,f,t,f,t,t,f,f,f", "SplInstruction,SplInstruction,SplInstruction,SplInstruction,SplInstruction,SplInstruction,,Pincode,SplInstruction,SplInstruction");
        if (checked("pv")) window.CheckForm(element("pv"), "paddr1,paddr2,paddr3,plandmark,colp,pcity,ppincode", "t,f,t,f,t,t,f", "SplInstruction,SplInstruction,SplInstruction,SplInstruction,SplInstruction,,Pincode");
        if (checked("rtv")) window.CheckForm(element("rtv"), "rphone", "t", "Phone");
        if (checked("otv")) window.CheckForm(element("otv"), "ophone", "t", "Phone");
        if (checked("refv")) window.CheckForm(element("refv"), "refname1,refaddress1,refcontactno1", "t,f,t", "AlphaSpace,SplInstruction,Phone");
        [["rv", "Rcolony", "colr"], ["ov", "Ocolony", "colo"], ["pv", "Pcolony", "colp"]]
            .forEach(([flag, hidden, visible]) => {
                if (checked(flag) && integer(hidden) === 0) window.highlightField(element(visible));
            });
        if (document.querySelector(".matrix-validation-error-icon")) {
            showAlert("danger", "APP-4221", "Correct the highlighted fields and submit the application again.");
            return false;
        }
        return true;
    }

    function showAlert(level, code, message, referenceId) {
        let host = element("case-save-alerts");
        if (!host) {
            host = document.createElement("div");
            host.id = "case-save-alerts";
            host.className = "position-fixed top-0 start-50 translate-middle-x p-3";
            host.style.cssText = "z-index:1085;max-width:720px;width:calc(100% - 2rem)";
            document.body.append(host);
        }
        const alert = document.createElement("div");
        alert.className = `alert alert-${level} alert-dismissible fade show shadow-sm`;
        alert.setAttribute("role", "alert");
        const strong = document.createElement("strong");
        strong.textContent = `${code}: `;
        alert.append(strong, document.createTextNode(message));
        if (referenceId) {
            const reference = document.createElement("small");
            reference.className = "d-block mt-1";
            reference.textContent = `Reference: ${referenceId}`;
            alert.append(reference);
        }
        const close = document.createElement("button");
        close.type = "button";
        close.className = "btn-close";
        close.setAttribute("data-bs-dismiss", "alert");
        close.setAttribute("aria-label", "Close");
        alert.append(close);
        host.replaceChildren(alert);
        window.setTimeout(() => window.bootstrap?.Alert.getOrCreateInstance(alert).close(), 7000);
    }

    function applyResult(result, originalApplicationId) {
        element("case_id").value = result.applicationId;
        if (element("mvcode")) element("mvcode").value = result.mvCode || "";
        if (Array.isArray(window.fields?.[0]) && Array.isArray(window.records?.[window.recpos])) {
            [["case_id", result.applicationId], ["mvcode", result.mvCode]].forEach(([name, fieldValue]) => {
                const index = window.fields[0].indexOf(name);
                if (index >= 0) window.records[window.recpos][index] = fieldValue;
            });
        }
        showAlert("success", "APP-2001", `Application ${result.mvCode || result.applicationId} saved successfully.`);
        if (originalApplicationId === 0 && typeof window.AddNewRecord === "function") window.AddNewRecord();
        else if (originalApplicationId > 0 && typeof window.findRecord === "function") window.findRecord(3);
    }

    async function save(event) {
        event?.preventDefault();
        if (!validateForm()) return false;
        const button = element("btnsave");
        if (button?.disabled) return false;
        const details = collectCase();
        if (button) button.disabled = true;
        try {
            const envelope = await window.CygnusPayloadCrypto.encrypt(details, { keyUrl: API.key });
            const response = await fetch(API.save, { method: "POST", credentials: "same-origin",
                headers: { "Content-Type": "application/json", Accept: "application/json" },
                body: JSON.stringify(envelope) });
            const body = await response.json().catch(() => null);
            if (!response.ok || !body?.success) throw body?.message || body || {};
            applyResult(body.data, details.applicationId);
        } catch (error) {
            showAlert("danger", error.code || "APP-5001",
                error.message || "Cygnus could not save the application details.", error.referenceId);
        } finally {
            if (button) button.disabled = false;
        }
        return false;
    }

    window.CygnusInitiation = Object.freeze({ save });
}(window, document));