#include "common/printing.h"
#include "common/jsonconfig.h"
#include "common/strutil.h"
#include "detection/displayserver/displayserver.h"
#include "modules/monitor/monitor.h"

#include <math.h>

bool ffPrintMonitor(FFMonitorOptions* options) {
    const FFDisplayServerResult* result = ffConnectDisplayServer();

    if (!result->displays.length) {
        ffPrintError(FF_MONITOR_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "No display detected");
        return false;
    }

    FF_STRBUF_AUTO_DESTROY key = ffStrbufCreate();
    uint32_t index = 0;
    FF_LIST_FOR_EACH (FFDisplayResult, display, result->displays) {
        double inch = sqrt(display->physicalWidth * display->physicalWidth + display->physicalHeight * display->physicalHeight) / 25.4;
        double ppi = sqrt(display->width * display->width + display->height * display->height) / inch;
        bool hdrCompatible = display->hdrStatus == FF_DISPLAY_HDR_STATUS_SUPPORTED || display->hdrStatus == FF_DISPLAY_HDR_STATUS_ENABLED;

        ffStrbufClear(&key);
        if (options->moduleArgs.key.length == 0) {
            ffStrbufAppendS(&key, FF_MONITOR_MODULE_NAME);
            if (display->name.length > 0) {
                ffStrbufAppendF(&key, " (%s)", display->name.chars);
            }
        } else {
            uint32_t moduleIndex = result->displays.length == 1 ? 0 : index + 1;
            FF_PARSE_FORMAT_STRING_CHECKED(&key, &options->moduleArgs.key, ((FFformatarg[]) {
                                                                               FF_ARG(moduleIndex, "index"),
                                                                               FF_ARG(display->name, "name"),
                                                                               FF_ARG(options->moduleArgs.keyIcon, "icon"),
                                                                           }));
        }

        if (options->moduleArgs.outputFormat.length == 0) {
            ffPrintLogoAndKey(key.chars, 0, &options->moduleArgs, FF_PRINT_TYPE_NO_CUSTOM_KEY);

            printf("%ux%u px", display->width, display->height);
            if (display->refreshRate > 0) {
                printf(" @ %g Hz", ((int) (display->refreshRate * 1000 + 0.5)) / 1000.0);
            }
            if (inch > 0) {
                printf(" - %ux%u mm (%.2f inches, %.2f ppi)", display->physicalWidth, display->physicalHeight, inch, ppi);
            }
            if (hdrCompatible) {
                fputs(" [HDR Compatible]", stdout);
            }
            putchar('\n');
        } else {
            char buf[32];
            if (display->serial) {
                const uint8_t* nums = (uint8_t*) &display->serial;
                snprintf(buf, sizeof(buf), "%2X-%2X-%2X-%2X", nums[0], nums[1], nums[2], nums[3]);
            } else {
                buf[0] = '\0';
            }

            FF_PRINT_FORMAT_CHECKED(key.chars, 0, &options->moduleArgs, FF_PRINT_TYPE_NO_CUSTOM_KEY, ((FFformatarg[]) {
                                                                                                         FF_ARG(display->name, "name"),
                                                                                                         FF_ARG(display->width, "width"),
                                                                                                         FF_ARG(display->height, "height"),
                                                                                                         FF_ARG(display->physicalWidth, "physical-width"),
                                                                                                         FF_ARG(display->physicalHeight, "physical-height"),
                                                                                                         FF_ARG(inch, "inch"),
                                                                                                         FF_ARG(ppi, "ppi"),
                                                                                                         FF_ARG(display->manufactureYear, "manufacture-year"),
                                                                                                         FF_ARG(display->manufactureWeek, "manufacture-week"),
                                                                                                         FF_ARG(buf, "serial"),
                                                                                                         FF_ARG(display->refreshRate, "refresh-rate"),
                                                                                                         FF_ARG(hdrCompatible, "hdr-compatible"),
                                                                                                     }));
        }

        ffStrbufDestroy(&display->name);
        ++index;
    }

    return true;
}

void ffParseMonitorJsonObject(FFMonitorOptions* options, yyjson_val* module) {
    yyjson_val *key, *val;
    size_t idx, max;
    yyjson_obj_foreach (module, idx, max, key, val) {
        if (ffJsonConfigParseModuleArgs(key, val, &options->moduleArgs)) {
            continue;
        }

        ffPrintError(FF_MONITOR_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "Unknown JSON key %s", unsafe_yyjson_get_str(key));
    }
}

void ffGenerateMonitorJsonConfig(FFMonitorOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
    ffJsonConfigGenerateModuleArgsConfig(doc, module, &options->moduleArgs);
}

bool ffGenerateMonitorJsonResult(FF_A_UNUSED FFMonitorOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
    yyjson_mut_obj_add_str(doc, module, "error", "Monitor module is an alias of Display module");
    return false;
}

void ffInitMonitorOptions(FFMonitorOptions* options) {
    ffOptionInitModuleArg(&options->moduleArgs, "󰹑");
}

void ffDestroyMonitorOptions(FFMonitorOptions* options) {
    ffOptionDestroyModuleArg(&options->moduleArgs);
}

FFModuleBaseInfo ffMonitorModuleInfo = {
    .name = FF_MONITOR_MODULE_NAME,
    .description = "Same as Display module, but with a different default output format",
    .initOptions = (void*) ffInitMonitorOptions,
    .destroyOptions = (void*) ffDestroyMonitorOptions,
    .parseJsonObject = (void*) ffParseMonitorJsonObject,
    .printModule = (void*) ffPrintMonitor,
    .generateJsonResult = (void*) ffGenerateMonitorJsonResult,
    .generateJsonConfig = (void*) ffGenerateMonitorJsonConfig,
    .formatArgs = FF_FORMAT_ARG_LIST(((FFModuleFormatArg[]) {
        { "Display name", "name" },
        { "Native resolution width in pixels", "width" },
        { "Native resolution height in pixels", "height" },
        { "Physical width in millimeters", "physical-width" },
        { "Physical height in millimeters", "physical-height" },
        { "Physical diagonal length in inches", "inch" },
        { "Pixels per inch (PPI)", "ppi" },
        { "Year of manufacturing", "manufacture-year" },
        { "Nth week of manufacturing in the year", "manufacture-week" },
        { "Serial number", "serial" },
        { "Maximum refresh rate in Hz", "refresh-rate" },
        { "True if the display is HDR compatible", "hdr-compatible" },
    }))
};