using BLL;
using DAL;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
using MLL;

namespace UI
{
    public class OrcasConsultaPanel : UserControl
    {
        // ── DESIGN ──────────────────────────────────────────────────────────
        private readonly Color AccentBlue = Color.FromArgb(37, 99, 235);
        private readonly Color TextDark = Color.FromArgb(30, 41, 59);
        private readonly Color BorderColor = Color.FromArgb(226, 232, 240);
        private readonly Color GreenColor = Color.FromArgb(34, 197, 94);
        private readonly Color SurfaceColor = Color.FromArgb(248, 250, 252);
        private readonly Color OrangeColor = Color.FromArgb(249, 115, 22);

        // ── CONTROLES ───────────────────────────────────────────────────────
        private DataGridView dgvOrcas = null!;
        private Label lblContador = null!;
        private Label lblSomaTotal = null!;

        private RoundTextBox txtFiltroCliente = null!;
        private RoundTextBox txtFiltroCodigo = null!;
        private ComboBox cmbSituacao = null!;

        // ── DADOS ────────────────────────────────────────────────────────────
        private List<ModeloOrcas> _todos = new();
        private List<ModeloOrcas> _filtrados = new();

        public event Action<ModeloOrcas>? OnEditarOrcamento;
        public event Action? OnNovoOrcamento;

        public OrcasConsultaPanel()
        {
            Dock = DockStyle.Fill;
            BackColor = Color.White;
            InitializeLayout();
            // CarregarDados(); // Chamar BLL aqui
        }

        private void InitializeLayout()
        {
            Controls.Clear();

            // 1. GRID
            BuildGrid();
            Controls.Add(dgvOrcas);

            // 2. RODAPÉ (Resumo Financeiro)
            var pnlRodape = new Panel { Dock = DockStyle.Bottom, Height = 50, BackColor = SurfaceColor, Padding = new Padding(16, 0, 16, 0) };
            lblContador = new Label { Text = "0 Orçamentos", AutoSize = true, Location = new Point(16, 18), Font = new Font("Segoe UI", 9f, FontStyle.Bold), ForeColor = TextDark };
            lblSomaTotal = new Label { Text = "Total Geral: R$ 0,00", AutoSize = false, Width = 300, Location = new Point(pnlRodape.Width - 320, 15), Anchor = AnchorStyles.Right, Font = new Font("Segoe UI", 11f, FontStyle.Bold), ForeColor = AccentBlue, TextAlign = ContentAlignment.MiddleRight };
            pnlRodape.Controls.AddRange(new Control[] { lblContador, lblSomaTotal });
            Controls.Add(pnlRodape);

            // 3. FILTROS
            var pnlFiltros = new Panel { Dock = DockStyle.Top, Height = 70, BackColor = SurfaceColor, Padding = new Padding(16, 10, 16, 10) };
            txtFiltroCodigo = AddFiltroInput(pnlFiltros, "Cód/Nº", 16, 10, 80);
            txtFiltroCliente = AddFiltroInput(pnlFiltros, "Cliente (Nome ou CPF/CNPJ)", 105, 10, 300);

            pnlFiltros.Controls.Add(new Label { Text = "Situação", Location = new Point(415, 10), Font = new Font("Segoe UI", 8f, FontStyle.Bold), AutoSize = true });
            cmbSituacao = new ComboBox { Location = new Point(415, 28), Size = new Size(130, 28), DropDownStyle = ComboBoxStyle.DropDownList, FlatStyle = FlatStyle.Flat };
            cmbSituacao.Items.AddRange(new[] { "Todos", "Aberto", "Aprovado", "Cancelado", "Finalizado" });
            cmbSituacao.SelectedIndex = 0;
            pnlFiltros.Controls.Add(cmbSituacao);

            Controls.Add(pnlFiltros);

            // 4. TOOLBAR
            var pnlToolbar = new Panel { Dock = DockStyle.Top, Height = 60, BackColor = Color.White };
            var btnNovo = CreateButton("Novo Orçamento", GreenColor, 16);
            btnNovo.Click += (s, e) => OnNovoOrcamento?.Invoke();

            var btnFiltrar = CreateButton("Pesquisar", AccentBlue, 165);
            btnFiltrar.Click += (s, e) => AplicarFiltros();

            pnlToolbar.Controls.AddRange(new Control[] { btnNovo, btnFiltrar });
            Controls.Add(pnlToolbar);
        }

        private void BuildGrid()
        {
            dgvOrcas = new DataGridView
            {
                Dock = DockStyle.Fill,
                BackgroundColor = Color.White,
                BorderStyle = BorderStyle.None,
                RowHeadersVisible = false,
                AllowUserToAddRows = false,
                ReadOnly = true,
                SelectionMode = DataGridViewSelectionMode.FullRowSelect,
                AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill,
                RowTemplate = { Height = 40 }
            };

            dgvOrcas.Columns.AddRange(new DataGridViewColumn[]
            {
                new DataGridViewTextBoxColumn { Name = "colCod", HeaderText = "Código", FillWeight = 20 },
                new DataGridViewTextBoxColumn { Name = "colData", HeaderText = "Data", FillWeight = 20 },
                new DataGridViewTextBoxColumn { Name = "colCliente", HeaderText = "Cliente", FillWeight = 60 },
                new DataGridViewTextBoxColumn { Name = "colTotal", HeaderText = "Total Geral", FillWeight = 30 },
                new DataGridViewTextBoxColumn { Name = "colStatus", HeaderText = "Situação", FillWeight = 25 }
            });

            dgvOrcas.CellFormatting += (s, e) => {
                if (dgvOrcas.Columns[e.ColumnIndex].Name == "colStatus" && e.Value != null)
                {
                    if (e.Value.ToString() == "Aprovado") e.CellStyle.ForeColor = GreenColor;
                    if (e.Value.ToString() == "Aberto") e.CellStyle.ForeColor = OrangeColor;
                }
            };

            dgvOrcas.CellDoubleClick += (s, e) => {
                if (e.RowIndex >= 0) AbrirEdicao();
            };
        }

        private void AplicarFiltros()
        {
            _filtrados = _todos.ToList();

            if (!string.IsNullOrEmpty(txtFiltroCliente.Text))
                _filtrados = _filtrados.Where(x => x.CLIENTE_NOME.ToUpper().Contains(txtFiltroCliente.Text.ToUpper())).ToList();

            if (cmbSituacao.SelectedIndex > 0)
                _filtrados = _filtrados.Where(x => x.SITUACAO == cmbSituacao.SelectedItem.ToString()).ToList();

            AtualizarGrid();
        }

        private void AtualizarGrid()
        {
            dgvOrcas.Rows.Clear();
            decimal soma = 0;

            foreach (var o in _filtrados)
            {
                dgvOrcas.Rows.Add(o.CODIGO, o.DIA, o.CLIENTE_NOME, o.TOTAL_GERAL, o.SITUACAO);

                if (decimal.TryParse(o.TOTAL_GERAL, out decimal v)) soma += v;
            }

            lblContador.Text = $"{_filtrados.Count} Orçamentos encontrados";
            lblSomaTotal.Text = $"Total Geral: {soma:C2}";
        }

        private void AbrirEdicao()
        {
            if (dgvOrcas.SelectedRows.Count == 0) return;
            string cod = dgvOrcas.SelectedRows[0].Cells["colCod"].Value.ToString();
            var orca = _filtrados.FirstOrDefault(x => x.CODIGO == cod);
            if (orca != null) OnEditarOrcamento?.Invoke(orca);
        }

        private RoundTextBox AddFiltroInput(Control parent, string label, int x, int y, int w)
        {
            parent.Controls.Add(new Label { Text = label, Location = new Point(x, y), Font = new Font("Segoe UI", 8f, FontStyle.Bold), AutoSize = true });
            var txt = new RoundTextBox { Location = new Point(x, y + 18), Size = new Size(w, 30), Radius = 5, BorderColor = BorderColor };
            parent.Controls.Add(txt);
            return txt;
        }

        private RoundButton CreateButton(string text, Color color, int x) => new RoundButton
        {
            Text = text,
            Size = new Size(140, 35),
            Location = new Point(x, 12),
            BackColor = color,
            ForeColor = Color.White,
            Font = new Font("Segoe UI Semibold", 9f),
            Cursor = Cursors.Hand
        };
    }
}