package ui

import (
	"os"
	"time"

	"git.stinnesbeck.com/nils/arr-tui/internal/config"
)

// SetConfigSource tells the app which file the settings came from and what that
// file contains, so the Config view can save changes. raw is the file as
// written (see config.LoadFile), not the effective settings.
func (a *App) SetConfigSource(path string, raw *config.Config) {
	a.cfgPath, a.cfgFile = path, raw
	if a.settings != nil {
		a.settings.describe()
	}
}

// applyConfig puts new settings into effect without a restart.
func (a *App) applyConfig(c *config.Config) {
	old := a.cfg
	a.cfg = c

	if old.Radarr.Service != c.Radarr.Service || old.Sonarr.Service != c.Sonarr.Service || old.SABnzbd != c.SABnzbd {
		a.radarr.Reconfigure(c.Radarr.URL, c.Radarr.APIKey)
		a.sonarr.Reconfigure(c.Sonarr.URL, c.Sonarr.APIKey)
		a.sab.Reconfigure(c.SABnzbd.URL, c.SABnzbd.APIKey)
		a.probeAll() // the indicators, right away
		for _, f := range a.reconnect {
			f()
		}
	}
	if old.Trakt.ClientID != c.Trakt.ClientID {
		a.trakt.Reconfigure(c.Trakt.ClientID)
	}
	if old.Trakt.ClientID != c.Trakt.ClientID || old.Radarr.Service != c.Radarr.Service || old.Sonarr.Service != c.Sonarr.Service {
		for _, v := range a.searches {
			v.forgetLists()
		}
	}
	if old.UI.RefreshSeconds != c.UI.RefreshSeconds {
		a.downloads.setInterval(time.Duration(c.UI.RefreshSeconds) * time.Second)
	}
	a.bell = c.UI.Bell
	if old.UI.Theme != c.UI.Theme {
		a.setTheme(chooseTheme(c.UI.Theme, terminalAnswers()))
	}
	if c.UI.ShouldNotifyDownloads() != a.notifyDone {
		a.setNotifyDownloads(c.UI.ShouldNotifyDownloads())
	}
	if old.UI.ShowCovers() != c.UI.ShowCovers() || old.UI.CoverStyle != c.UI.CoverStyle {
		a.covers = c.UI.ShowCovers()
		a.restyleCovers()
	}
}

// restyleCovers applies a changed poster style or switch to every detail pane.
func (a *App) restyleCovers() {
	blocks, graphics := resolveCovers(a.cfg.UI.CoverStyle, os.Getenv)
	if a.gfx != nil {
		a.gfx.deleteAll() // the terminal's copies belong to the old images
	}
	a.coverStyle = blocks
	switch {
	case graphics && a.gfx == nil:
		a.gfx = a.newGraphics()
	case !graphics:
		a.gfx = nil
	}
	a.coverCache = newCoverCache() // stored copies depend on the style (their height)
	for _, p := range a.panes {
		p.cover.style, p.cover.gfx = blocks, a.gfx
		p.cover.cells = nil
		p.Show(p.detail, p.lastRef) // fetch the poster again for the new style
	}
}

// forgetPane drops a detail pane that is no longer shown (a closed drill-down).
func (a *App) forgetPane(d *detailPane) {
	for i, p := range a.panes {
		if p == d {
			a.panes = append(a.panes[:i], a.panes[i+1:]...)
			return
		}
	}
}