package cointop

import (
	"fmt"
	"strings"

	"github.com/jroimartin/gocui"
)

// layout sets initial layout
func (ct *Cointop) layout(g *gocui.Gui) error {
	maxX, maxY := ct.size()
	topOffset := 0

	marketbarHeight := 1
	chartHeight := 10
	statusbarHeight := 1

	if ct.onlyTable {
		ct.hideMarketbar = true
		ct.hideChart = true
		ct.hideStatusbar = true
	}

	if ct.hideMarketbar {
		marketbarHeight = 0
	}

	if ct.hideChart {
		chartHeight = 0
	}

	if ct.hideStatusbar {
		statusbarHeight = 0
	}

	if !ct.hideMarketbar {
		if v, err := g.SetView(ct.marketbarviewname, 0, topOffset, maxX, 2); err != nil {
			if err != gocui.ErrUnknownView {
				return err
			}
			ct.marketbarview = v
			ct.marketbarview.Frame = false
			ct.colorscheme.SetViewColor(ct.marketbarview, "marketbar")
			go func() {
				ct.updateMarketbar()
				_, found := ct.cache.Get(ct.marketbarviewname)
				if found {
					ct.cache.Delete(ct.marketbarviewname)
					ct.updateMarketbar()
				}
			}()
		}
	}

	topOffset = topOffset + marketbarHeight

	if !ct.hideChart {
		if v, err := g.SetView(ct.chartviewname, 0, topOffset, maxX, topOffset+chartHeight+marketbarHeight); err != nil {
			if err != gocui.ErrUnknownView {
				return err
			}
			ct.chartview = v
			ct.chartview.Frame = false
			ct.colorscheme.SetViewColor(ct.chartview, "chart")
			go func() {
				ct.updateChart()
				cachekey := strings.ToLower(fmt.Sprintf("%s_%s", "globaldata", strings.Replace(ct.selectedchartrange, " ", "", -1)))
				_, found := ct.cache.Get(cachekey)
				if found {
					ct.cache.Delete(cachekey)
					ct.updateChart()
				}
			}()
		}
	}

	topOffset = topOffset + chartHeight
	if v, err := g.SetView(ct.headerviewname, 0, topOffset, ct.maxtablewidth, topOffset+2); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		ct.headersview = v
		ct.headersview.Frame = false
		ct.colorscheme.SetViewColor(ct.headersview, "table_header")
		go ct.updateHeaders()
	}

	topOffset = topOffset + 1
	if v, err := g.SetView(ct.tableviewname, 0, topOffset, ct.maxtablewidth, maxY-statusbarHeight); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		ct.tableview = v
		ct.tableview.Frame = false
		ct.tableview.Highlight = true
		ct.colorscheme.SetViewActiveColor(ct.tableview, "table_row_active")
		_, found := ct.cache.Get("allcoinsslugmap")
		if found {
			ct.cache.Delete("allcoinsslugmap")
		}
		go func() {
			ct.updateCoins()
			ct.updateTable()
		}()
	}

	if !ct.hideStatusbar {
		if v, err := g.SetView(ct.statusbarviewname, 0, maxY-2, ct.maxtablewidth, maxY); err != nil {
			if err != gocui.ErrUnknownView {
				return err
			}
			ct.statusbarview = v
			ct.statusbarview.Frame = false
			ct.colorscheme.SetViewColor(ct.statusbarview, "statusbar")
			go ct.updateStatusbar("")
		}
	}

	if v, err := g.SetView(ct.searchfieldviewname, 0, maxY-2, ct.maxtablewidth, maxY); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		ct.searchfield = v
		ct.searchfield.Editable = true
		ct.searchfield.Wrap = true
		ct.searchfield.Frame = false
		ct.colorscheme.SetViewColor(ct.searchfield, "searchbar")
	}

	if v, err := g.SetView(ct.helpviewname, 1, 1, ct.maxtablewidth-1, maxY-1); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		ct.helpview = v
		ct.helpview.Frame = false
		ct.colorscheme.SetViewColor(ct.helpview, "menu")
	}

	if v, err := g.SetView(ct.portfolioupdatemenuviewname, 1, 1, ct.maxtablewidth-1, maxY-1); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		ct.portfolioupdatemenuview = v
		ct.portfolioupdatemenuview.Frame = false
		ct.colorscheme.SetViewColor(ct.portfolioupdatemenuview, "menu")
	}

	if v, err := g.SetView(ct.inputviewname, 3, 6, 30, 8); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		ct.inputview = v
		ct.inputview.Frame = true
		ct.inputview.Editable = true
		ct.inputview.Wrap = true
		ct.colorscheme.SetViewColor(ct.inputview, "menu")
	}

	if v, err := g.SetView(ct.convertmenuviewname, 1, 1, ct.maxtablewidth-1, maxY-1); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		ct.convertmenuview = v
		ct.convertmenuview.Frame = false
		ct.colorscheme.SetViewColor(ct.convertmenuview, "menu")

		// run only once on init.
		// this bit of code should be at the bottom
		ct.g = g
		g.SetViewOnBottom(ct.searchfieldviewname)         // hide
		g.SetViewOnBottom(ct.helpviewname)                // hide
		g.SetViewOnBottom(ct.convertmenuviewname)         // hide
		g.SetViewOnBottom(ct.portfolioupdatemenuviewname) // hide
		g.SetViewOnBottom(ct.inputviewname)               // hide
		ct.setActiveView(ct.tableviewname)
		ct.intervalFetchData()
	}

	return nil
}

func (ct *Cointop) setActiveView(v string) error {
	ct.g.SetViewOnTop(v)
	ct.g.SetCurrentView(v)
	if v == ct.searchfieldviewname {
		ct.searchfield.Clear()
		ct.searchfield.SetCursor(1, 0)
		fmt.Fprintf(ct.searchfield, "%s", "/")
	} else if v == ct.tableviewname {
		ct.g.SetViewOnTop(ct.statusbarviewname)
	}
	if v == ct.portfolioupdatemenuviewname {
		ct.g.SetViewOnTop(ct.inputviewname)
		ct.g.SetCurrentView(ct.inputviewname)
	}
	return nil
}

func (ct *Cointop) activeViewName() string {
	return ct.g.CurrentView().Name()
}

func (ct *Cointop) setViewOnBottom(v string) error {
	_, err := ct.g.SetViewOnBottom(v)
	return err
}

func (ct *Cointop) intervalFetchData() {
	go func() {
		for {
			select {
			case <-ct.forcerefresh:
				ct.refreshAll()
			case <-ct.refreshticker.C:
				ct.refreshAll()
			}
		}
	}()
}