package tg4

import (
	"time"

	"drmdecryption/modcfg"
	"drmdecryption/modules/provider"
	"drmdecryption/uiflow"
)

// Name is the module id (--app tg4).
const Name = "tg4"

// Channel is one live channel. VideoID may be empty when the id must be read from
// the remote playback config instead.
type Channel struct {
	Label string `yaml:"label"`
	// VideoID is the Brightcove video id for this live.
	VideoID string `yaml:"video_id"`
	// TokenField names the playback-config field holding this live's playback token.
	TokenField string `yaml:"token_field"`
	// StreamIDField names the playback-config field holding this live's video id,
	// used when VideoID is empty.
	StreamIDField string `yaml:"stream_id_field"`
	// LiveCardIndex is this channel's position in the app's Live card list.
	LiveCardIndex int `yaml:"live_card_index"`
	// PhoneOnly marks a channel with no catalog entry — capture via the phone UI.
	PhoneOnly bool `yaml:"phone_only"`
}

// Config is apps/modules/tg4/module.yaml.
type Config struct {
	provider.Common `yaml:",inline"`

	// Brightcove account credentials. Secrets: never defaulted in code.
	AccountID         string `yaml:"account_id"`
	PolicyKey         string `yaml:"policy_key"`
	PlaybackConfigURL string `yaml:"playback_config_url"`

	Channels map[string]Channel `yaml:"channels"`

	// StreamNamePrefix prefixes generated stream names (default: module name).
	StreamNamePrefix string `yaml:"stream_name_prefix"`

	Cards    uiflow.CardOpts `yaml:"cards"`
	UI       UI              `yaml:"ui"`
	Timeouts Timeouts        `yaml:"timeouts"`
}

// UI holds the markers and fallbacks the Live-page navigation uses.
type UI struct {
	// LaunchDescContains: any of these content-descriptions means the app is up.
	LaunchDescContains []string `yaml:"launch_desc_contains"`
	// LaunchResourceContains: any of these view ids means the app is up. More
	// stable than descriptions, which are localized.
	LaunchResourceContains []string `yaml:"launch_resource_contains"`
	// LiveLabel is the menu/title text identifying the Live page.
	LiveLabel string `yaml:"live_label"`
	// LiveTitleResource marks the Live page title node.
	LiveTitleResource string `yaml:"live_title_resource"`
	// DrawerDesc are the content-descriptions of the drawer (hamburger) button.
	DrawerDesc []string `yaml:"drawer_desc"`
	// DrawerFallbackX/Y is tapped when the drawer button cannot be identified.
	DrawerFallbackX int `yaml:"drawer_fallback_x"`
	DrawerFallbackY int `yaml:"drawer_fallback_y"`
	// MenuMaxX / MenuMinY / MenuMaxY bound where a drawer menu entry can sit.
	MenuMaxX int `yaml:"menu_max_x"`
	MenuMinY int `yaml:"menu_min_y"`
	MenuMaxY int `yaml:"menu_max_y"`
	// TitleMaxY bounds where the Live page title can sit.
	TitleMaxY int `yaml:"title_max_y"`
	// PlaybackDescContains / PlaybackResourceContains are player-up signals.
	PlaybackDescContains     []string `yaml:"playback_desc_contains"`
	PlaybackResourceContains []string `yaml:"playback_resource_contains"`
}

// Timeouts for the launch / autoplay sequence. Written as "25s" in module.yaml.
type Timeouts struct {
	LaunchWaitUI provider.Duration `yaml:"launch_wait_ui"`
	LaunchSettle provider.Duration `yaml:"launch_settle"`
	LiveNav      provider.Duration `yaml:"live_nav"`
	Card         provider.Duration `yaml:"card"`
	AfterCard    provider.Duration `yaml:"after_card"`
	Playback     provider.Duration `yaml:"playback"`
	AfterLiveTap provider.Duration `yaml:"after_live_tap"`
	AfterDrawer  provider.Duration `yaml:"after_drawer"`
}

func (c Config) withDefaults() Config {
	if c.StreamNamePrefix == "" {
		c.StreamNamePrefix = Name
	}
	c.Cards = c.Cards.WithDefaults()
	if len(c.Cards.DescDeny) == 0 {
		c.Cards.DescDeny = []string{"Search", "Profile", "Cast", "Open", "Closed"}
	}
	if len(c.Cards.TextDeny) == 0 {
		c.Cards.TextDeny = []string{"catch-up"}
	}
	u := &c.UI
	if len(u.LaunchDescContains) == 0 && len(u.LaunchResourceContains) == 0 {
		u.LaunchDescContains = []string{"live", "home"}
	}
	if u.LiveLabel == "" {
		u.LiveLabel = "live"
	}
	if u.LiveTitleResource == "" {
		u.LiveTitleResource = "live_fragment_text_view"
	}
	if len(u.DrawerDesc) == 0 {
		u.DrawerDesc = []string{"Open", "Closed"}
	}
	if u.DrawerFallbackX == 0 {
		u.DrawerFallbackX = 68
	}
	if u.DrawerFallbackY == 0 {
		u.DrawerFallbackY = 183
	}
	if u.MenuMaxX == 0 {
		u.MenuMaxX = 700
	}
	if u.MenuMinY == 0 {
		u.MenuMinY = 250
	}
	if u.MenuMaxY == 0 {
		u.MenuMaxY = 700
	}
	if u.TitleMaxY == 0 {
		u.TitleMaxY = 400
	}
	if len(u.PlaybackDescContains) == 0 {
		u.PlaybackDescContains = []string{"video player"}
	}
	if len(u.PlaybackResourceContains) == 0 {
		u.PlaybackResourceContains = []string{"brightcove_video_view"}
	}
	t := &c.Timeouts
	t.LaunchWaitUI = provider.Duration(t.LaunchWaitUI.D(30 * time.Second))
	t.LaunchSettle = provider.Duration(t.LaunchSettle.D(5 * time.Second))
	t.LiveNav = provider.Duration(t.LiveNav.D(25 * time.Second))
	t.Card = provider.Duration(t.Card.D(25 * time.Second))
	t.AfterCard = provider.Duration(t.AfterCard.D(3 * time.Second))
	t.Playback = provider.Duration(t.Playback.D(60 * time.Second))
	t.AfterLiveTap = provider.Duration(t.AfterLiveTap.D(3 * time.Second))
	t.AfterDrawer = provider.Duration(t.AfterDrawer.D(1200 * time.Millisecond))
	return c
}

// flag overrides, bound before any app is constructed.
var flags struct {
	packageName       string
	accountID         string
	policyKey         string
	playbackConfigURL string
	caHash            string
	proxyBin          string
}

func loadConfig() (Config, modcfg.Result, error) {
	var cfg Config
	res, err := modcfg.Load(Name, &cfg)
	if err != nil {
		return cfg, res, err
	}
	cfg.Package = modcfg.Override(Name, "package", flags.packageName, cfg.Package)
	cfg.CAHash = modcfg.Override(Name, "ca_hash", flags.caHash, cfg.CAHash)
	cfg.ProxyBin = modcfg.Override(Name, "proxy_bin", flags.proxyBin, cfg.ProxyBin)
	cfg.AccountID = modcfg.Override(Name, "account_id", flags.accountID, cfg.AccountID)
	cfg.PolicyKey = modcfg.Override(Name, "policy_key", flags.policyKey, cfg.PolicyKey)
	cfg.PlaybackConfigURL = modcfg.Override(Name, "playback_config_url", flags.playbackConfigURL, cfg.PlaybackConfigURL)
	return cfg.withDefaults(), res, nil
}