using CPM;
using MLL;
using System;
using System.Drawing;
using System.Windows.Forms;

namespace UI
{
    public partial class OrdensCadastroPanel : UserControl
    {
        //Variaveis auxiliares
        private string nomeCliente = "Nicolas Felipe G. dos santos";
        // ── CORES ──────────────────────────────────────────────────────────────
        private readonly Color CorPreta = Color.FromArgb(20, 20, 20);
        private readonly Color CorVerde = Color.FromArgb(22, 163, 74);
        private readonly Color CorVerdeHover = Color.FromArgb(16, 120, 55);
        private readonly Color CorVermelha = Color.FromArgb(220, 38, 38);
        private readonly Color CorVermelhaHov = Color.FromArgb(170, 20, 20);
        private readonly Color CorAzul = Color.FromArgb(37, 99, 235);
        private readonly Color CorCinzaClaro = Color.FromArgb(245, 245, 245);
        private readonly Color CorCinzaBorda = Color.FromArgb(200, 200, 200);
        private readonly Color CorTexto = Color.FromArgb(30, 41, 59);
        private readonly Color CorFocoBorda = Color.FromArgb(37, 99, 235);
        private readonly Color CorLaranja = Color.FromArgb(253, 186, 116);
        private readonly Color CorBranca = Color.FromArgb(255, 255, 255);

        // ── CAMPOS ─────────────────────────────────────────────────────────────
        private Label lblNumOS;
        private Label lblCliente;
        private Label lblEndereco;
        private Label lblTelefone;
        private Label lblCodVal;
        private DateTimePicker dtpEntrada;
        private DateTimePicker dtpPronto;
        private DateTimePicker dtpSaida;
        private ComboBox cmbSituacao;
        private Label lblGarantia;
        private LV_TEXTBOX1 txtAdiantamento;
        private Label lblVMao;
        private Label lblVPecas;
        private Label lblVDesloca;
        private Label lblVTerceiro;
        private Label lblVOutros;
        private Label lblVTotal;
        private LV_TEXTBOX1 txtModelo;
        private LV_TEXTBOX1 txtMarca;
        private LV_TEXTBOX1 txtOperadora;
        private LV_TEXTBOX1 txtSerial;
        private LV_TEXTBOX1 txtPatrimonio;
        private TextBox txtAcessorios;
        private TextBox txtDefeito;
        private TextBox txtObsAparelho;
        private DataGridView dgvServicos;
        private DataGridView dgvPecas;
        private TextBox txtLaudo;
        private TextBox txtObsServico;
        private ComboBox cmbTecnico;
        private ComboBox cmbPrioridade;
        private TabControl tabs;

        private ModeloOrdens _os;
        public event Action? OnVoltar;

        // ══════════════════════════════════════════════════════════════════════
        //  CONSTRUTOR
        // ══════════════════════════════════════════════════════════════════════
        public OrdensCadastroPanel()
        {
            _os = new ModeloOrdens();
            this.Dock = DockStyle.Fill;
            this.BackColor = Color.White;
            MontarInterface();
        }

        private void InitializeComponent() { }

        public void CarregarOS(ModeloOrdens os)
        {
            _os = os;
            PreencherCampos();
        }

        // ══════════════════════════════════════════════════════════════════════
        //  MONTAGEM PRINCIPAL
        // ══════════════════════════════════════════════════════════════════════
        private void MontarInterface()
        {
            // Usamos posicionamento manual com Anchor/Dock + eventos Resize
            // para controle preciso igual ao print.

            // 1) HEADER (topo fixo, 56px)
            var pnlHeader = CriarHeader();
            pnlHeader.Dock = DockStyle.Top;
            pnlHeader.Height = 56;

            // 2) RODAPÉ (base fixa, 46px)
            var pnlRodape = CriarRodape();
            pnlRodape.Dock = DockStyle.Bottom;
            pnlRodape.Height = 46;

            // 3) ÁREA CENTRAL (Fill) — contém cliente + meio + abas
            var pnlCentral = new Panel { Dock = DockStyle.Fill, BackColor = Color.White };

            // 3a) PAINEL CLIENTE (topo da área central, 72px)
            var pnlCliente = CriarPainelCliente();
            pnlCliente.Dock = DockStyle.Top;
            pnlCliente.Height = 72;

            // 3b) PAINEL MEIO (datas + situação + financeiro, 115px)
            var pnlMeio = CriarPainelMeio();
            pnlMeio.Dock = DockStyle.Top;
            pnlMeio.Height = 115;

            // 3c) ABAS (Fill restante)
            var tabCtrl = CriarAbas();

            // Adiciona em ordem inversa (DockStyle.Top empilha de cima pra baixo)
            pnlCentral.Controls.Add(tabCtrl);    // Fill — vai primeiro
            pnlCentral.Controls.Add(pnlMeio);    // Top
            pnlCentral.Controls.Add(pnlCliente); // Top

            // Adiciona ao UserControl
            this.Controls.Add(pnlCentral);
            this.Controls.Add(pnlRodape);
            this.Controls.Add(pnlHeader);
        }

        // ══════════════════════════════════════════════════════════════════════
        //  HEADER
        // ══════════════════════════════════════════════════════════════════════
        private Panel CriarHeader()
        {
            var pnl = new Panel { BackColor = CorPreta };

            lblNumOS = new Label
            {
                Text = "O.S. nº  —",
                Font = new Font("Segoe UI", 18f, FontStyle.Bold),
                ForeColor = CorVermelha,
                Location = new Point(16, 10),
                AutoSize = true
            };
            pnl.Controls.Add(lblNumOS);

            var btnGravar = LvBtn("✔  Gravar OS", CorVerde, CorVerdeHover, CorVerdeHover, 130, 36, br: 6);
            var btnCancelar = LvBtn("✖  Cancelar", CorVermelha, CorVermelhaHov, CorVermelhaHov, 120, 36, br: 6);

            btnGravar.Click += (s, e) => Salvar();
            btnCancelar.Click += (s, e) => OnVoltar?.Invoke();

            pnl.Resize += (s, e) =>
            {
                btnCancelar.Location = new Point(pnl.Width - 128, 10);
                btnGravar.Location = new Point(pnl.Width - 266, 10);
            };

            pnl.Controls.Add(btnGravar);
            pnl.Controls.Add(btnCancelar);
            return pnl;
        }

        // ══════════════════════════════════════════════════════════════════════
        //  PAINEL CLIENTE
        // ══════════════════════════════════════════════════════════════════════
        private Panel CriarPainelCliente()
        {
            var pnl = new Panel { BackColor = Color.White, Padding = new Padding(10, 6, 10, 4) };
            pnl.Paint += (s, e) =>
            {
                // Linha inferior separadora
                using var pen = new Pen(CorCinzaBorda);
                e.Graphics.DrawLine(pen, 0, pnl.Height - 1, pnl.Width, pnl.Height - 1);
            };

            // Linha 1 — "Cliente:" + nome
            pnl.Controls.Add(Lbl("Cliente:", 10, 6, 60, bold: true, fs: 9f));
            lblCliente = new Label
            {
                ////Text = "—",
                Text = this.nomeCliente,
                Font = new Font("Segoe UI", 9.5f, FontStyle.Bold),
                ForeColor = CorTexto,
                Location = new Point(72, 6),
                AutoSize = true
            };
            pnl.Controls.Add(lblCliente);

            // "Cod.:" ancorado à direita
            var lblRotCod = Lbl("Cod.:", 0, 6, 36, fs: 8.5f);
            lblCodVal = Lbl("—", 0, 6, 60, fs: 8.5f);
            lblRotCod.Anchor = AnchorStyles.Top | AnchorStyles.Right;
            lblCodVal.Anchor = AnchorStyles.Top | AnchorStyles.Right;
            pnl.Resize += (s, e) =>
            {
                lblRotCod.Location = new Point(pnl.Width - 98, 6);
                lblCodVal.Location = new Point(pnl.Width - 60, 6);
            };
            pnl.Controls.Add(lblRotCod);
            pnl.Controls.Add(lblCodVal);

            // Linha 2 — Endereço
            pnl.Controls.Add(Lbl("Endereço:", 10, 28, 68, bold: true, fs: 8.5f));
            lblEndereco = new Label
            {
                Text = "—",
                Font = new Font("Segoe UI", 8.5f),
                ForeColor = CorAzul,
                Location = new Point(80, 28),
                AutoSize = true
            };
            pnl.Controls.Add(lblEndereco);

            // Linha 3 — Telefones
            pnl.Controls.Add(Lbl("Telefones:", 10, 50, 70, bold: true, fs: 8.5f));
            lblTelefone = new Label
            {
                Text = "—",
                Font = new Font("Segoe UI", 8.5f),
                ForeColor = CorAzul,
                Location = new Point(82, 50),
                AutoSize = true
            };
            pnl.Controls.Add(lblTelefone);

            return pnl;
        }

        // ══════════════════════════════════════════════════════════════════════
        //  PAINEL MEIO  —  datas à esquerda | financeiro à direita
        // ══════════════════════════════════════════════════════════════════════
        private Panel CriarPainelMeio()
        {
            var pnl = new Panel { BackColor = Color.White };
            pnl.Paint += (s, e) =>
            {
                using var pen = new Pen(CorCinzaBorda);
                e.Graphics.DrawLine(pen, 0, pnl.Height - 1, pnl.Width, pnl.Height - 1);
            };

            // ── FINANCEIRO (direita, largura fixa 270) ─────────────────────────
            var pnlFin = CriarPainelFinanceiro();
            pnlFin.Anchor = AnchorStyles.Top | AnchorStyles.Right | AnchorStyles.Bottom;

            pnl.Resize += (s, e) =>
            {
                pnlFin.Location = new Point(pnl.Width - 272, 0);
                pnlFin.Size = new Size(272, pnl.Height);
            };
            pnl.Controls.Add(pnlFin);

            // ── DATAS + SITUAÇÃO (esquerda) ────────────────────────────────────
            int lx = 10, lw = 62, tw = 148, th = 22;

            // Entrada
            pnl.Controls.Add(Lbl("Entrada", lx, 12, lw, bold: true));
            dtpEntrada = DTP(pnl, lx + lw, 10, tw, th);

            // Pronto
            pnl.Controls.Add(Lbl("Pronto", lx, 38, lw, bold: true));
            dtpPronto = DTP(pnl, lx + lw, 36, tw, th);

            // Saída
            pnl.Controls.Add(Lbl("Saída", lx, 64, lw, bold: true));
            dtpSaida = DTP(pnl, lx + lw, 62, tw, th);

            // Situação da OS
            int sx = 240;
            pnl.Controls.Add(Lbl("Situação da OS", sx, 4, 130, bold: true));
            cmbSituacao = new ComboBox
            {
                Location = new Point(sx, 22),
                Size = new Size(220, 26),
                DropDownStyle = ComboBoxStyle.DropDownList,
                Font = new Font("Segoe UI", 9f),
                FlatStyle = FlatStyle.Flat
            };
            cmbSituacao.Items.AddRange(new object[]
            {
                "Aguardando avaliação do técnico",
                "Em Orçamento",
                "Orçamento Aprovado",
                "Em Reparo",
                "Pronto",
                "Entregue",
                "Cancelado"
            });
            cmbSituacao.SelectedIndex = 0;
            pnl.Controls.Add(cmbSituacao);

            // Garantia até
            lblGarantia = new Label
            {
                Text = "Garantia até  —",
                Font = new Font("Segoe UI", 9f, FontStyle.Bold),
                ForeColor = CorVermelha,
                Location = new Point(sx, 54),
                AutoSize = true
            };
            pnl.Controls.Add(lblGarantia);

            // Botão Histórico
            var btnHist = LvBtn("Histórico", CorCinzaClaro, Color.FromArgb(180, 180, 180), Color.FromArgb(150, 150, 150), 88, 24, br: 4, bs: 1, bc: CorCinzaBorda);
            btnHist.ForeColor = CorTexto;
            btnHist.Location = new Point(sx, 80);
            pnl.Controls.Add(btnHist);

            return pnl;
        }

        // ── PAINEL FINANCEIRO ──────────────────────────────────────────────────
        private Panel CriarPainelFinanceiro()
        {
            var pnl = new Panel { BackColor = Color.White };
            pnl.Paint += (s, e) =>
            {
                using var pen = new Pen(CorCinzaBorda);
                e.Graphics.DrawLine(pen, 0, 0, 0, pnl.Height); // borda esquerda
            };

            int lx = 10, vx = 160, vw = 100, rh = 17;
            int[] yy = { 4, 22, 40, 58, 76, 94 };

            // Adiantamento
            pnl.Controls.Add(Lbl("Adiantamento", lx, yy[0] + 1, 110));
            txtAdiantamento = new LV_TEXTBOX1
            {
                Location = new Point(vx, yy[0]),
                Size = new Size(vw, 20),
                BorderColor = CorCinzaBorda,
                BorderFocusColor = CorFocoBorda,
                BorderSize = 2,
                Text = "0,00"
            };
            pnl.Controls.Add(txtAdiantamento);

            // Valores somente leitura
            lblVMao = LblV(pnl, "Mão-de-obra", lx, yy[1], vx, vw, rh);
            lblVPecas = LblV(pnl, "Peças", lx, yy[2], vx, vw, rh);
            lblVDesloca = LblV(pnl, "Deslocamento", lx, yy[3], vx, vw, rh);
            lblVTerceiro = LblV(pnl, "Serviço terceiros", lx, yy[4], vx, vw, rh);
            lblVOutros = LblV(pnl, "Outros", lx, yy[5], vx, vw, rh);

            // Botão <<GARANTIA>>
            var btnGar = LvBtn("<<GARANTIA>>", CorVermelha, CorVermelhaHov, CorVermelhaHov, 108, 20, br: 3);
            btnGar.Font = new Font("Segoe UI", 7.5f, FontStyle.Bold);
            btnGar.Location = new Point(lx, 78);
            pnl.Controls.Add(btnGar);

            // Total — linha inferior destacada
            lblVTotal = new Label
            {
                Text = "R$ 0,00",
                Font = new Font("Segoe UI", 11f, FontStyle.Bold),
                ForeColor = CorVermelha,
                Dock = DockStyle.Bottom,
                Height = 26,
                TextAlign = ContentAlignment.MiddleRight,
                Padding = new Padding(0, 0, 6, 0),
                BackColor = Color.FromArgb(255, 240, 240)
            };
            pnl.Controls.Add(lblVTotal);

            return pnl;
        }

        // ══════════════════════════════════════════════════════════════════════
        //  ABAS
        // ══════════════════════════════════════════════════════════════════════
        private TabControl CriarAbas()
        {
            tabs = new TabControl
            {
                Dock = DockStyle.Fill,
                Font = new Font("Segoe UI", 9f),
                DrawMode = TabDrawMode.OwnerDrawFixed,
                ItemSize = new Size(0, 28),
                Padding = new Point(12, 4)
            };

            tabs.DrawItem += (s, e) =>
            {
                var pg = tabs.TabPages[e.Index];
                bool sel = (e.Index == tabs.SelectedIndex);
                var rect = e.Bounds;

                using var bg = new SolidBrush(sel ? CorVermelha : CorCinzaClaro);
                e.Graphics.FillRectangle(bg, rect);

                if (!sel)
                {
                    using var pen = new Pen(CorCinzaBorda);
                    e.Graphics.DrawRectangle(pen, rect.X, rect.Y, rect.Width - 1, rect.Height - 1);
                }

                var sf = new StringFormat { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center };
                using var fg = new SolidBrush(sel ? Color.White : CorTexto);
                e.Graphics.DrawString(pg.Text,
                    new Font("Segoe UI", 9f, sel ? FontStyle.Bold : FontStyle.Regular),
                    fg, rect, sf);
            };

            var pgAparelho = new TabPage("Aparelho") { BackColor = Color.White };
            var pgMaoObra = new TabPage("Mão de obra/Serviços") { BackColor = Color.White };
            var pgPecas = new TabPage("Peças utilizadas") { BackColor = Color.White };
            var pgLaudo = new TabPage("Obs/Laudo técnico") { BackColor = Color.White };
            var pgMisc = new TabPage("Miscelânea") { BackColor = Color.White };

            ConfigAbaAparelho(pgAparelho);
            ConfigAbaMaoObra(pgMaoObra);
            ConfigAbaPecas(pgPecas);
            ConfigAbaLaudo(pgLaudo);
            ConfigAbaMisc(pgMisc);

            tabs.TabPages.AddRange(new[] { pgAparelho, pgMaoObra, pgPecas, pgLaudo, pgMisc });
            return tabs;
        }

        // ── Aba Aparelho ───────────────────────────────────────────────────────
        private void ConfigAbaAparelho(TabPage page)
        {
            page.Padding = new Padding(6, 4, 6, 4);

            // Usamos posicionamento manual + Anchor para evitar TableLayoutPanel
            // (que causava o problema dos campos desaparecendo)

            // ── Linha 1: Modelo | Marca ──
            var lblModelo = Lbl("Modelo", 0, 0, 100);
            txtModelo = LvTxt(page, 0, 16, 420, 26);

            var lblMarca = Lbl("Marca", 430, 0, 100);
            txtMarca = new LV_TEXTBOX1
            {
                BorderColor = CorCinzaBorda,
                BorderFocusColor = CorFocoBorda,
                BorderSize = 2,
                Font = new Font("Segoe UI", 9.5f),
                Location = new Point(430, 16),
                Size = new Size(200, 26)   // ajustado via Resize
            };
            txtMarca.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;

            // ── Linha 2: Operadora | Serial | Nº Patrimônio ──
            var lblOper = Lbl("Operadora", 0, 52, 100);
            txtOperadora = LvTxt(page, 0, 68, 420, 26);

            var lblSer = Lbl("Serial", 430, 52, 100);
            txtSerial = LvTxt(page, 430, 68, 200, 26);

            var lblPat = Lbl("Nº Patrimônio", 640, 52, 120);
            txtPatrimonio = new LV_TEXTBOX1
            {
                BorderColor = CorCinzaBorda,
                BorderFocusColor = CorFocoBorda,
                BorderSize = 2,
                Font = new Font("Segoe UI", 9.5f),
                Location = new Point(640, 68),
                Size = new Size(200, 26)
            };
            txtPatrimonio.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;

            // ── Linha 3: Acessórios | Defeito/Reclamação ──
            var lblAces = Lbl("Acessórios", 0, 106, 120);
            var lblDef = Lbl("Defeito/Reclamação", 430, 106, 200);

            txtAcessorios = new TextBox
            {
                Multiline = true,
                ScrollBars = ScrollBars.Vertical,
                BorderStyle = BorderStyle.FixedSingle,
                Font = new Font("Segoe UI", 9.5f),
                Location = new Point(0, 122),
                Size = new Size(422, 140)
            };

            txtDefeito = new TextBox
            {
                Multiline = true,
                ScrollBars = ScrollBars.Vertical,
                BorderStyle = BorderStyle.FixedSingle,
                Font = new Font("Segoe UI", 9.5f),
                Location = new Point(430, 122),
                Size = new Size(500, 140)   // ajustado via Resize
            };
            txtDefeito.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;

            // ── Linha 4: Observações (laranja) ──
            var lblObs = Lbl("Observações", 0, 272, 120);
            txtObsAparelho = new TextBox
            {
                Multiline = true,
                ScrollBars = ScrollBars.Vertical,
                BorderStyle = BorderStyle.FixedSingle,
                Font = new Font("Segoe UI", 9.5f),
                BackColor = CorLaranja,
                Location = new Point(0, 288),
                Size = new Size(930, 120)  // ajustado via Resize
            };
            txtObsAparelho.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right | AnchorStyles.Bottom;

            page.Controls.AddRange(new Control[]
            {
                lblModelo, txtModelo, lblMarca, txtMarca,
                lblOper, txtOperadora, lblSer, txtSerial, lblPat, txtPatrimonio,
                lblAces, txtAcessorios, lblDef, txtDefeito,
                lblObs, txtObsAparelho
            });

            // Reposiciona controles ancorados à direita no resize
            page.Resize += (s, e) =>
            {
                int w = page.ClientSize.Width - 12;
                txtMarca.Size = new Size(w - 430, 26);
                txtPatrimonio.Size = new Size(w - 640, 26);
                txtDefeito.Size = new Size(w - 430, 140);
                txtObsAparelho.Size = new Size(w, txtObsAparelho.Height);
            };
        }

        // ── Aba Mão de Obra ────────────────────────────────────────────────────
        private void ConfigAbaMaoObra(TabPage page)
        {
            dgvServicos = Grid();
            dgvServicos.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Serviço", FillWeight = 40 });
            dgvServicos.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Técnico", FillWeight = 20 });
            dgvServicos.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Início", FillWeight = 15 });
            dgvServicos.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Fim", FillWeight = 15 });
            dgvServicos.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Valor", FillWeight = 10 });
            page.Controls.Add(dgvServicos);
        }

        // ── Aba Peças ──────────────────────────────────────────────────────────
        private void ConfigAbaPecas(TabPage page)
        {
            dgvPecas = Grid();
            dgvPecas.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Código", FillWeight = 12 });
            dgvPecas.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Descrição", FillWeight = 38 });
            dgvPecas.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Qtd", FillWeight = 10 });
            dgvPecas.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "V. Unit.", FillWeight = 15 });
            dgvPecas.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Total", FillWeight = 15 });
            dgvPecas.Columns.Add(new DataGridViewTextBoxColumn { HeaderText = "Técnico", FillWeight = 10 });
            page.Controls.Add(dgvPecas);
        }

        // ── Aba Laudo ──────────────────────────────────────────────────────────
        private void ConfigAbaLaudo(TabPage page)
        {
            page.Padding = new Padding(6, 4, 6, 4);

            var lblLaudo = Lbl("Laudo Técnico / Serviço Realizado", 0, 0, 300);
            txtLaudo = new TextBox
            {
                Multiline = true,
                ScrollBars = ScrollBars.Vertical,
                BorderStyle = BorderStyle.FixedSingle,
                Font = new Font("Segoe UI", 9.5f),
                Location = new Point(0, 16),
                Size = new Size(900, 160),
                Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right
            };

            var lblObs = Lbl("Observações Adicionais do Serviço", 0, 186, 300);
            txtObsServico = new TextBox
            {
                Multiline = true,
                ScrollBars = ScrollBars.Vertical,
                BorderStyle = BorderStyle.FixedSingle,
                Font = new Font("Segoe UI", 9.5f),
                Location = new Point(0, 202),
                Size = new Size(900, 120),
                Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right | AnchorStyles.Bottom
            };

            page.Controls.AddRange(new Control[] { lblLaudo, txtLaudo, lblObs, txtObsServico });

            page.Resize += (s, e) =>
            {
                int w = page.ClientSize.Width - 12;
                txtLaudo.Width = w;
                txtObsServico.Width = w;
            };
        }

        // ── Aba Miscelânea ─────────────────────────────────────────────────────
        private void ConfigAbaMisc(TabPage page)
        {
            page.Controls.Add(Lbl("Campos adicionais serão configurados aqui.", 10, 12, 400));
        }

        // ══════════════════════════════════════════════════════════════════════
        //  RODAPÉ
        // ══════════════════════════════════════════════════════════════════════
        private Panel CriarRodape()
        {
            var pnl = new Panel { BackColor = CorCinzaClaro };
            pnl.Paint += (s, e) =>
            {
                using var pen = new Pen(CorCinzaBorda);
                e.Graphics.DrawLine(pen, 0, 0, pnl.Width, 0);
            };

            // Técnico Responsável
            pnl.Controls.Add(Lbl("Técnico Responsável", 10, 2, 140, bold: true, fs: 8.5f));
            cmbTecnico = new ComboBox
            {
                Location = new Point(10, 18),
                Size = new Size(200, 24),
                DropDownStyle = ComboBoxStyle.DropDownList,
                Font = new Font("Segoe UI", 9f),
                FlatStyle = FlatStyle.Flat
            };
            cmbTecnico.Items.Add("Não definido");
            cmbTecnico.SelectedIndex = 0;
            pnl.Controls.Add(cmbTecnico);

            // Prioridade
            pnl.Controls.Add(Lbl("Prioridade", 220, 2, 80, bold: true, fs: 8.5f));
            cmbPrioridade = new ComboBox
            {
                Location = new Point(220, 18),
                Size = new Size(120, 24),
                DropDownStyle = ComboBoxStyle.DropDownList,
                Font = new Font("Segoe UI", 9f),
                FlatStyle = FlatStyle.Flat
            };
            cmbPrioridade.Items.AddRange(new object[] { "Normal", "Alta", "Urgente" });
            cmbPrioridade.SelectedIndex = 0;
            pnl.Controls.Add(cmbPrioridade);

            // Botão Fotos/Docs
            var btnFotos = LvBtn("📷  Fotos/Docs", CorCinzaClaro, Color.FromArgb(180, 180, 180), CorCinzaBorda, 128, 28, br: 4, bs: 1, bc: CorCinzaBorda);
            btnFotos.ForeColor = CorTexto;
            btnFotos.Anchor = AnchorStyles.Top | AnchorStyles.Right;
            pnl.Resize += (s, e) => btnFotos.Location = new Point(pnl.Width - 136, 8);
            pnl.Controls.Add(btnFotos);

            return pnl;
        }

        // ══════════════════════════════════════════════════════════════════════
        //  PREENCHIMENTO
        // ══════════════════════════════════════════════════════════════════════
        private void PreencherCampos()
        {
            if (_os == null) return;

            lblNumOS.Text = $"O.S. nº  {_os.CODIGO ?? "—"}";
            lblCliente.Text = _os.COD_CLIENTE ?? "—";
            lblCodVal.Text = _os.ID_ORDENS.ToString();

            txtModelo.Text = _os.MODELO ?? "";
            txtMarca.Text = _os.MARCA ?? "";
            txtSerial.Text = _os.SERIE ?? "";
            txtAcessorios.Text = _os.ACESSORIO ?? "";
            txtDefeito.Text = _os.DEFEITO ?? "";
            txtObsAparelho.Text = _os.OBS_APARELHO ?? "";
            txtLaudo.Text = _os.LAUDO ?? "";
            txtObsServico.Text = _os.OBS_SERVICO ?? "";

            lblVMao.Text = Fmt(_os.V_MAO);
            lblVPecas.Text = Fmt(_os.V_PECAS);
            lblVDesloca.Text = Fmt(_os.V_DESLOCA);
            lblVTerceiro.Text = Fmt(_os.V_TERCEIRO);
            lblVOutros.Text = Fmt(_os.V_OUTROS);

            if (!string.IsNullOrEmpty(_os.SITUACAO))
            {
                int i = cmbSituacao.Items.IndexOf(_os.SITUACAO);
                if (i >= 0) cmbSituacao.SelectedIndex = i;
            }

            if (DateTime.TryParse(_os.ENTRADA, out var de)) dtpEntrada.Value = de;
            if (DateTime.TryParse(_os.PRONTO, out var dp)) dtpPronto.Value = dp;
            if (DateTime.TryParse(_os.SAIDA, out var ds)) dtpSaida.Value = ds;

            if (!string.IsNullOrEmpty(_os.GARANTIA))
                lblGarantia.Text = $"Garantia até  {_os.GARANTIA}";

            AtualizarTotal();
        }

        private void AtualizarTotal()
        {
            decimal total = Prx(_os?.V_MAO)
                          + Prx(_os?.V_PECAS)
                          + Prx(_os?.V_DESLOCA)
                          + Prx(_os?.V_TERCEIRO)
                          + Prx(_os?.V_OUTROS);
            lblVTotal.Text = $"R$ {total:N2}";
        }

        // ══════════════════════════════════════════════════════════════════════
        //  SALVAR
        // ══════════════════════════════════════════════════════════════════════
        private void Salvar()
        {
            try
            {
                _os ??= new ModeloOrdens();
                _os.MODELO = txtModelo.Text;
                _os.MARCA = txtMarca.Text;
                _os.SERIE = txtSerial.Text;
                _os.ACESSORIO = txtAcessorios.Text;
                _os.DEFEITO = txtDefeito.Text;
                _os.OBS_APARELHO = txtObsAparelho.Text;
                _os.LAUDO = txtLaudo.Text;
                _os.OBS_SERVICO = txtObsServico.Text;
                _os.SITUACAO = cmbSituacao.SelectedItem?.ToString();
                _os.ENTRADA = dtpEntrada.Value.ToString("dd/MM/yy HH:mm");
                _os.PRONTO = dtpPronto.Value.ToString("dd/MM/yy HH:mm");
                _os.SAIDA = dtpSaida.Value.ToString("dd/MM/yy HH:mm");

                MessageBox.Show("Ordem de Serviço salva com sucesso!", "LevelOS",
                    MessageBoxButtons.OK, MessageBoxIcon.Information);
                OnVoltar?.Invoke();
            }
            catch (Exception ex)
            {
                MessageBox.Show($"Erro ao salvar: {ex.Message}", "Erro",
                    MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        // ══════════════════════════════════════════════════════════════════════
        //  FACTORY HELPERS
        // ══════════════════════════════════════════════════════════════════════

        /// <summary>LV_BUTTON configurado.</summary>
        private LV_BUTTON LvBtn(string texto, Color bg, Color hover, Color click,
                                int w, int h, int br = 0, int bs = 0, Color bc = default)
        {
            var btn = new LV_BUTTON
            {
                Text = texto,
                Size = new Size(w, h),
                BackColor = bg,
                HoverColor = hover,
                ClickColor = click,
                ForeColor = Color.White,
                Font = new Font("Segoe UI", 9f, FontStyle.Bold),
                BorderRadius = br,
                BorderSize = bs,
                Cursor = Cursors.Hand
            };
            if (bc != default) btn.BorderColor = bc;
            return btn;
        }

        /// <summary>LV_TEXTBOX1 adicionado ao parent.</summary>
        private LV_TEXTBOX1 LvTxt(Control parent, int x, int y, int w, int h)
        {
            var tb = new LV_TEXTBOX1
            {
                Location = new Point(x, y),
                Size = new Size(w, h),
                BorderColor = CorCinzaBorda,
                BorderFocusColor = CorFocoBorda,
                BorderSize = 2,
                Font = new Font("Segoe UI", 9.5f)
            };
            parent.Controls.Add(tb);
            return tb;
        }

        /// <summary>Label de valor (painel financeiro).</summary>
        private Label LblV(Panel parent, string rotulo, int lx, int ly, int vx, int vw, int rh)
        {
            parent.Controls.Add(Lbl(rotulo, lx, ly + 1, 120));
            var lbl = new Label
            {
                Text = "R$ 0,00",
                Font = new Font("Segoe UI", 8.5f),
                ForeColor = CorTexto,
                Location = new Point(vx, ly),
                Size = new Size(vw, rh),
                TextAlign = ContentAlignment.MiddleRight
            };
            parent.Controls.Add(lbl);
            return lbl;
        }

        /// <summary>DataGridView padronizado.</summary>
        private DataGridView Grid()
        {
            var dgv = new DataGridView
            {
                Dock = DockStyle.Fill,
                BackgroundColor = Color.White,
                BorderStyle = BorderStyle.None,
                AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill,
                EnableHeadersVisualStyles = false,
                AllowUserToAddRows = true,
                RowHeadersVisible = false,
                SelectionMode = DataGridViewSelectionMode.FullRowSelect,
                GridColor = CorCinzaBorda,
                Font = new Font("Segoe UI", 9f)
            };
            dgv.ColumnHeadersDefaultCellStyle.BackColor = CorCinzaClaro;
            dgv.ColumnHeadersDefaultCellStyle.ForeColor = CorTexto;
            dgv.ColumnHeadersDefaultCellStyle.Font = new Font("Segoe UI", 9f, FontStyle.Bold);
            dgv.ColumnHeadersHeight = 28;
            dgv.AlternatingRowsDefaultCellStyle.BackColor = Color.FromArgb(250, 250, 255);
            return dgv;
        }

        /// <summary>DateTimePicker padronizado.</summary>
        private DateTimePicker DTP(Control parent, int x, int y, int w, int h)
        {
            var dtp = new DateTimePicker
            {
                Location = new Point(x, y),
                Size = new Size(w, h),
                Format = DateTimePickerFormat.Custom,
                CustomFormat = "dd/MM/yy HH:mm",
                Font = new Font("Segoe UI", 9f)
            };
            parent.Controls.Add(dtp);
            return dtp;
        }

        /// <summary>Label simples.</summary>
        private Label Lbl(string texto, int x, int y, int w, bool bold = false, float fs = 8.5f)
        {
            return new Label
            {
                Text = texto,
                Location = new Point(x, y),
                Size = new Size(w, 16),
                Font = new Font("Segoe UI", fs, bold ? FontStyle.Bold : FontStyle.Regular),
                ForeColor = CorTexto,
                AutoSize = false
            };
        }

        private string Fmt(string? v) => decimal.TryParse(v, out var d) ? $"R$ {d:N2}" : "R$ 0,00";
        private decimal Prx(string? v) => decimal.TryParse(v, out var d) ? d : 0m;
    }
}