package main

import (
	"log"
	"os"
	"strconv"
	"strings"

	engine "git.pablu.de/pablu/sqv-engine"
	"github.com/charmbracelet/bubbles/table"
	tea "github.com/charmbracelet/bubbletea"
	"github.com/charmbracelet/lipgloss"
)

var baseStyle = lipgloss.NewStyle().
	BorderStyle(lipgloss.NormalBorder()).
	BorderForeground(lipgloss.Color("240"))

func tabBorderWithBottom(left, middle, right string) lipgloss.Border {
	border := lipgloss.RoundedBorder()
	border.BottomLeft = left
	border.Bottom = middle
	border.BottomRight = right
	return border
}

var (
	inactiveTabBorder = tabBorderWithBottom("┴", "─", "┴")
	activeTabBorder   = tabBorderWithBottom("┘", " ", "└")
	docStyle          = lipgloss.NewStyle().Padding(1, 2, 1, 2)
	highlightColor    = lipgloss.AdaptiveColor{Light: "#874BFD", Dark: "#7D56F4"}
	inactiveTabStyle  = lipgloss.NewStyle().Border(inactiveTabBorder, true).BorderForeground(highlightColor).Padding(0, 1)
	activeTabStyle    = inactiveTabStyle.Border(activeTabBorder, true)
	windowStyle       = lipgloss.NewStyle().BorderForeground(highlightColor).Padding(2, 0).Align(lipgloss.Center).Border(lipgloss.NormalBorder()).UnsetBorderTop()
)

type model struct {
	tables     []table.Model
	tableNames []string

	currTable int
}

func (m model) Init() tea.Cmd {
	return nil
}

func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
	var cmd tea.Cmd
	switch msg := msg.(type) {
	case tea.KeyMsg:
		switch msg.String() {
		case "ctrl+c", "q":
			return m, tea.Quit
		case "right", "l", "n", "tab":
			m.currTable = min(m.currTable+1, len(m.tables)-1)
			return m, nil
		case "left", "h", "p", "shift+tab":
			m.currTable = max(m.currTable-1, 0)
			return m, nil
		}
	}

	m.tables[m.currTable], cmd = m.tables[m.currTable].Update(msg)

	return m, cmd
}

func (m model) View() string {
	doc := strings.Builder{}

	var renderedTabs []string

	for i, t := range m.tableNames {
		var style lipgloss.Style
		isFirst, isLast, isActive := i == 0, i == len(m.tables)-1, i == m.currTable
		if isActive {
			style = activeTabStyle
		} else {
			style = inactiveTabStyle
		}
		border, _, _, _, _ := style.GetBorder()
		if isFirst && isActive {
			border.BottomLeft = "│"
		} else if isFirst && !isActive {
			border.BottomLeft = "├"
		} else if isLast && isActive {
			border.BottomRight = "│"
		} else if isLast && !isActive {
			border.BottomRight = "┤"
		}

		style = style.Border(border)
		renderedTabs = append(renderedTabs, style.Render(t))
	}

	row := lipgloss.JoinHorizontal(lipgloss.Top, renderedTabs...)
	doc.WriteString(row)
	doc.WriteString("\n")
	doc.WriteString(windowStyle.Width((lipgloss.Width(row) - windowStyle.GetHorizontalFrameSize())).Render(m.tables[m.currTable].View()))

	return docStyle.Render(doc.String())
	// return baseStyle.Render(m.table.View()) + "\n"
}

func convertToViewTable(m *engine.Manager) ([]string, []table.Model) {
	tables := m.GetTables()
	res := make([]table.Model, len(tables))
	resNames := make([]string, len(tables))

	for j, t := range tables {
		columns := make([]table.Column, len(t.Columns))
		for i, column := range t.Columns {
			columns[i] = table.Column{
				Title: column.Name,
				Width: 10,
			}
		}

		for k := range 50 {
			row := engine.Row{Values: make([]string, len(t.Columns))}
			for i := range t.Columns {
				row.Values[i] = "test " + strconv.Itoa(k)
			}
			t.Rows = append(t.Rows, row)
		}

		rows := make([]table.Row, len(t.Rows))
		for i, row := range t.Rows {
			rows[i] = row.Values
		}

		resTable := table.New(
			table.WithColumns(columns),
			table.WithRows(rows),
			table.WithFocused(true),
			table.WithHeight(7),
		)

		s := table.DefaultStyles()
		s.Header = s.Header.
			BorderStyle(lipgloss.NormalBorder()).
			BorderForeground(lipgloss.Color("240")).
			BorderBottom(true).
			Bold(false)
		s.Selected = s.Selected.
			Foreground(lipgloss.Color("229")).
			Background(lipgloss.Color("57")).
			Bold(false)
		resTable.SetStyles(s)

		resNames[j] = t.Name
		res[j] = resTable
	}

	return resNames, res
}

func main() {
	file, err := os.ReadFile("test.sql")
	if err != nil {
		log.Fatal(err)
	}

	m := engine.NewManagerFromFile(string(file))
	m.Start()

	tableNames, tables := convertToViewTable(m)

	p := tea.NewProgram(model{tables: tables, tableNames: tableNames}, tea.WithAltScreen())
	if _, err := p.Run(); err != nil {
		log.Fatalf("Alas, theres been an error: %v", err)
	}
}