local pcmFile = "/luadb/10.pcm"
local amrFile = "/luadb/10.amr"

local ringTimer
local hangUpCb = function()
    cc.hangUp(0)
end
local acceptCb = function()
    if ringTimer then
        sys.timerStop(ringTimer)
        ringTimer = nil
    end
    if not audio.isEnd(0) then
        log.info("手动关闭")
        audio.playStop(0)
    end
    local result = cc.accept(0)
    log.info("cc accept", result)
    sys.subscribe("POWERKEY_PRESSED", hangUpCb)
end

local cnt = 0
sys.subscribe("CC_IND", function(state)
    log.info("CC_IND", state)
    if state == "READY" then
        sys.publish("CC_READY")
    elseif state == "INCOMINGCALL" then
        cnt = cnt + 1
        if cnt > 1 then
            if ringTimer then return end
            sys.subscribe("POWERKEY_PRESSED", acceptCb)
            attributes.set("callStatus", "通话中")
            attributes.set("audioStatus", "通话中")
            if ringTimer then
                sys.timerStop(ringTimer)
                ringTimer = nil
            end
            if not audio.isEnd(0) then
                log.info("手动关闭")
                audio.playStop(0)
            end
            local buff = io.readFile(pcmFile)
            audio.start(0, audio.PCM, 1, 8000, 16)
            audio.write(0, buff)
            ringTimer = sys.timerLoopStart(function()
                if not audio.isEnd(0) then
                    log.info("手动关闭")
                    audio.playStop(0)
                end
                audio.write(0, buff)
            end, 400)
        end
    elseif state == "HANGUP_CALL_DONE" or state == "MAKE_CALL_FAILED" or state == "DISCONNECTED" then
        pcall(sys.unsubscribe, "POWERKEY_PRESSED", acceptCb)
        pcall(sys.unsubscribe, "POWERKEY_PRESSED", hangUpCb)
        if ringTimer then
            sys.timerStop(ringTimer)
            ringTimer = nil
        end
        attributes.set("callStatus", "已就绪")
        attributes.set("audioStatus", "空闲")
        sys.publish("CC_DONE")
        audio.pm(0, audio.STANDBY)
        -- audio.pm(0,audio.SHUTDOWN)	--低功耗可以选择SHUTDOWN或者POWEROFF，如果codec无法断电用SHUTDOWN
    end
end)

local ccReady = false
local es8311Power = gpio.setup(25, 1)
sys.taskInit(function()
    local multimedia_id = 0
    local i2c_id = 0
    local i2s_id = 0
    local i2s_mode = 0
    local i2s_sample_rate = 16000
    local i2s_bits_per_sample = 16
    local i2s_channel_format = i2s.MONO_R
    local i2s_communication_format = i2s.MODE_LSB
    local i2s_channel_bits = 16
    local pa_pin = 23
    local pa_on_level = 1
    local pa_delay = 100
    local power_pin = 255
    local power_on_level = 1
    local power_delay = 3
    local power_time_delay = 100
    local voice_vol = 70
    local mic_vol = 90
    local find_es8311 = false
    mcu.altfun(mcu.I2C, i2c_id, 13, 2, 0)
    mcu.altfun(mcu.I2C, i2c_id, 14, 2, 0)
    i2c.setup(i2c_id, i2c.FAST)
    sys.wait(10)
    if i2c.send(i2c_id, 0x18, 0xfd) == true then
        find_es8311 = true
    end
    if not find_es8311 then
        while true do
            log.info("not find es8311")
            sys.wait(1000)
        end
    end
    i2s.setup(i2s_id, i2s_mode, i2s_sample_rate, i2s_bits_per_sample, i2s_channel_format, i2s_communication_format, i2s_channel_bits)
    audio.config(multimedia_id, pa_pin, pa_on_level, power_delay, pa_delay, power_pin, power_on_level, power_time_delay)
    audio.setBus(multimedia_id, audio.BUS_I2S, {
        chip = "es8311",
        i2cid = i2c_id,
        i2sid = i2s_id,
        voltage = audio.VOLTAGE_1800
    }) -- 通道0的硬件输出通道设置为I2S
    audio.vol(multimedia_id, voice_vol)
    audio.micVol(multimedia_id, mic_vol)
    cc.init(multimedia_id)
    audio.pm(0, audio.STANDBY)
    sys.publish("AUDIO_SETUP_DONE")--音频初始化完毕了
    sys.waitUntil("CC_READY")
    ccReady = true
    attributes.set("callStatus", "已就绪")
    sys.wait(100)
end)

sys.taskInit(function()
    sys.waitUntil("AUDIO_SETUP_DONE")
    log.info("audio", "ready")
    while true do
        local _,cmd,param = sys.waitUntil("AUDIO_CMD_RECEIVED")
        log.info("audio", cmd, param)
        --低功耗模式就别放了
        if attributes.get("sleepMode") then
            log.info("audio", "sleepMode cancel play")
        elseif cmd == "call" then
            if ccReady then
                cc.dial(0,param) --拨打电话
                attributes.set("callStatus", "通话中")
                attributes.set("audioStatus", "通话中")
                sys.subscribe("POWERKEY_PRESSED", hangUpCb)
                sys.waitUntil("CC_DONE")
            else
                log.info("audio", "cc not ready")
            end
        elseif cmd == "music" then
            local result = audio.play(0, amrFile)
            attributes.set("audioStatus", "播放中")
            log.info("audio", "play music",result)
            sys.wait(1000)
            if not audio.isEnd(0) then
                log.info("手动关闭")
                audio.playStop(0)
            end
            audio.pm(0, audio.STANDBY)
            attributes.set("audioStatus", "空闲")
        end
    end
end)

audio.on(0, function(audio_id, msg)
    log.info("msg", audio_id, msg)
end)